Glyptocombus saltator Heidemann, 1906

Recognized among genera of New World Hypselosomatinae by dense setation on all surfaces of the tibia, extending from base to apex, first labial segment not dorsally expanded, and third and fourth labial segments without processes.

Male (Figure 1): macropterous or with elytriform forewing, length: 1.14–1.74 mm; body ovoid. Coloration: general coloration tan to black. Surface and Vestiture: scape with 5 setae, clypeus with 3 long, stout setae, buccula and first labial segment each with pair of stout ventrolateral setae, second labial segment with pair of lateral setae (Figure 1), long, stout seta dorsoapically on third tarsal segment of all legs, anophore without distinctive setae (Figure 3A). Structure: Head: first labial segment not enlarged, clypeus simple. Thorax: tarsal formula 2-3-3, parempodia long and thin, bladder-like arolium absent. Abdomen: abdomen with 6 spiracles on left and 5 on right side, right side of tergum 8 with small projection containing spiracle, left side with large mitten-shaped projection with spiracle and long seta, sterna 7 and 8 distinct, posterior margin of sternum 7 simple, left side with triangular flap, sternum 8 rectangular-ovoid (Figure 3B). Genitalia (Figure 3A): right paramere long, stout with rounded apex and short, rounded process at base, left paramere scapula-shaped with large thumb-shaped projection, vesica of average length with one coil and small rounded conjunctival appendage at base, anophoric process crab claw-shaped, extending posteriorly on left side.

Female (Figure 1): with elytriform forewing, length: 1.42–1.51 mm; body ovoid. Coloration: general coloration tan to black. Surface and vestiture: scape with 5 setae, setae on clypeus, buccula and first and second labial segments as in male. Structure. Head: first labial segment and clypeus as in male. Thorax: tarsal formula 2-2-3, pretarsus as in male (Figure 1). Genitalia (Figure 3C, D): anterior gonapophysis with 3 teeth, without subapical serration, posterior gonapophysis with two teeth, median styloid bifurcate, gonoplac small, oriented ventrad, spermathecal gland spherical; spermathecal gland duct straight, spermathecal reservoir globular with one bend, spermathecal duct short and relatively straight.

Figure 1 

Habitus images of Glyptocombus spp. in dorsal, ventral, frontal and lateral views.

Figure 2. 

Forewings of males of Glyptocombus spp. A Glyptocombus halbertae (UCR_ENT 00012051) B G. mexicanus (UCR_ENT 00094271) C G. saltator (UCR_ENT 00090440) D G. suteri (UCR_ENT 00090443).

Figure 3. 

Male genitalia of G. halbertae (UCR_ENT 00012051) in A dorsal and B ventral view, and female genitalia of G. saltator (UCR_ENT 00090441) in C dorsal and D lateral view.

This is the only genus of Hypselosomatinae with almost exclusive Nearctic distribution based on locality records of the single previously described and three new species, as well as one female specimen from Chiapas that represents an undescribed species. Specimens have been collected using Berlese extraction, hand collecting, yellow pan traps, pitfall traps (single and array, normal and dung), sifting leaf litter, suction traps, and UV lighting. Extracted substrates included beech humus, bottomland hardwood remnant, fallen leaves, “rubbish,” earth, and the forest floor of Palmetto-gumbo limbo upland.

Type material. Holotype: male: USA: Florida: Collier Co.: Florida: Collier Co. Immokalee, 26.41853°N 81.41741°W, 04 Jul 2013 - 11 Jul 2013, Susan Halbert (UCR_ENT 00012022) (FSCA). Paratype: USA: Florida: Collier Co.: Florida: Collier Co. Immokalee, 26.41853°N 81.41741°W, 26 Jun 2014 - 03 Jul 2014, ED_4274, Susan Halbert, 1 male (UCR_ENT 00012051) (FSCA).

Recognized among species of Glyptocombus by the macropterous male, contrasting dark brown and pale legs, desclerotized portion of C+Sc vein basal to junction with R1, Cu touching M at basal corner of dc1, part of Cu distal to tc s-shaped, R2 slightly sigmoid, rc and dc approx. as long as bc (Figure 2A). Most similar to G. suteri based on wing type in males, but differentiated by details of the wing venation.

Male (Figure 1): macropterous, length: 1.23 mm; body ovoid. Coloration: head, pronotum, and forewings dark brown to black, scutellum dark brown with pale lateral and apical marks, coxae, femora, and base of tibiae dark brown, apex and base of tarsi pale to yellow, pretarsi brown, genital capsule and genitalia dark brown. Surface and Vestiture: in frontal orientation forefemur without anterior stout, long seta, hind tibia with 5 erect medium-length stout setae ventrally on distal half, second tarsomere of hind leg with stout seta anteroventrally (Figure 1). Structure. Head: disc steeply decurrent anteriorly. Thorax: ratio of pronotal collar length to pronotum length 0.23, collar depressed below rest of pronotum (Figure 1), postnotum subrectangular (i.e., freely projecting portion is straight along most of posterior margin, curving only laterally, as in Rectilamina Hill; this can be observed only when specimen is in ethanol and wings have been moved aside or removed), ratio of height of forefemur to length of forefemur 0.24, ratio of length of hind tibia to width of pronotum 0.88, venation of macropterous forewing as in Figure 2A, desclerotized portion of C+Sc vein basal to junction with R1, Cu touching M at basal corner of dc1, part of Cu distal to tc s-shaped, R2 slightly sigmoid, rc and dc approx. as long as bc (Figure 2A). Abdomen and genitalia: as in genus description (Figure 3A, B).

Female. Unknown.

Named for the collector of both known specimens of this species, Susan Halbert.

Known only from Collier County in Florida (USA).

Type material. Holotype: male: MEXICO: Quintana Roo: Res. Ecologica El Eden 25km NNE Leona Vicario, 21.21667°N 87.18333°W, 13 Oct 1998 - 28 Oct 1998, A. Blanco (UCRC_ENT 00038403) (UCR). Paratypes: Tamaulipas: Estacion Biol. Los Cedros, Gomez Farias, 22.88629°N 99.0255°W, 350 m, 26 Jul 1993 - 30 Jul 1993, E. G. Riley, 1 male (UCR_ENT 00094271), 1 female (UCR_ENT 00094272) (TAMU); 18 Jul 1994 - 19 Jul 1994, J. Cook & E. Riley, 1 male (UCR_ENT 00094275) (TAMU). Estacion Biol. Los Cedros, Gomez Farias, 22.88621°N 99.0255°W, 18 Jul 1994 - 22 Jul 1994, Cook, Ganaway & Riley, 1 female (UCR_ENT 00094276) (TAMU).

Distinguished among species of Glyptocombus by dark brown coloration, elytriform forewings in both sexes, forewing veins wider than cells, absence of areoles in forewing cells, and all legs with tibia and femora pale (Figure 1). Most similar to G. saltator based on wingtype in both males and females, but differentiated by much wider veins.

Male (Figure 1): with elytriform forewing, length: 1.18–1.74 mm; body ovoid. Coloration: head and body dark brown to black, coxae light brown, rest of legs pale to yellow, genital capsule and genitalia light to dark brown. Surface and Vestiture: in frontal orientation forefemur without anterior stout seta, hind tibia withtwoerect medium-length setae ventrally on distal half, second tarsomere of hind leg with stout seta anteroventrally (Figure 1). Structure. Head: disc declivous. Thorax: ratio of pronotal collar length to pronotum length 0.30–0.32, pronotal collar slightly depressed below pronotum (Figure 1), posterior margin of postnotum curved, ratio of height of forefemur to length of forefemur 0.20–0.23, ratio of length of hind tibia to width of pronotum 1.00, wing venation as in Figure 2B, forewing elytriform, with veins wider than cells. Abdomen and genitalia: as in genus description (Figure 3A, B).

Female (Figure 1): with elytriform forewing, length: 1.51 mm; body ovoid. Coloration: similar to male. Surface and vestiture: forefemur with anterior stout seta, hind tibia with four erect medium-length macrosetae ventrally on distal half, second hind tarsomere with two stout setae anteroventrally (Figure 1), entire surface of sternum 7 shiny with long setae (Figure 1). Structure. Head: disc decurrent anteriorly. Thorax: similar to male, but ratio of pronotal collar length to pronotum length 0.28, collar slightly depressed below pronotum (Figure 1), postnotum short and rectangular, ratio of height of forefemur to length of forefemur 0.26, ratio of length of hind tibia to width of pronotum 1.00, forewing similar to male. Abdomen and Genitalia: as in genus description (Figure 3C, D).

Named for the country of origin.

Specimens of this species have been collected in Quintana Roo and Tamaulipas in Mexico.

Type material. Holotype: male: Maryland: Montgomery Co.: Plummers Island, 38.97049°N 77.1763°W, 4.10.05, DH Clemons (UCR_ENT 00028583) (USNM). Paratypes: USA: Maryland: Montgomery Co.: Plummers Island, 38.97049°N 77.1763°W, 29 Sep 1905, DH Clemons, 1 female Paratype No 9785 U.S.N.M.(USNM).

Recognized among species of Glyptocombus by reddish-brown coloration, elytriform forewings in both sexes, forewing veins narrower than cells, and areolate forewing cells (Figure 1). Most similar to G. mexicanus based on wingtype in both males and females, but differentiated by much narrower veins.

Male (Figure 1): with elytriform forewing, length: 1.14–1.52 mm; body ovoid. Coloration: head and body reddish dark brown, legs light brown with apex of foretibiae light, genital capsule and genitalia light to dark brown. Surface and vestiture: in frontal orientation forefemur without anterior stout seta, hind tibia with four erect medium-length stout setae ventrally on distal half, second tarsomere of hind leg with stout seta anteroventrally. Structure. Head: disc decurrent anteriorly. Thorax: ratio of pronotal collar length to pronotum length 0.25–0.35, collar slightly depressed below pronotum (Figure 1), posterior margin of postnotum curved in medially around contour of scutellum, ratio of height of forefemur to length of forefemur 0.20–0.23, ratio of length of hind tibia to width of pronotum 0.94–1.16, venation of elytriform forewing as in Figure 2A, veins narrower than cells, cells areolate. Abdomen and genitalia: as in genus description (Figure 3A, B).

Female (Figure 1): elytrous, length: 1.46–1.49 mm; body ovoid. Coloration: similar to male. Surface and vestiture: in frontal orientation forefemur without anterior stout seta, hind tibia with four erect medium-length stout setae ventrally on distal half, second hind tarsomere with stout seta anteroventrally, sternum 7 with posteriad-pointing medial U-shaped shiny area with long setae. Structure. Head: disc steeply declivous anteriorly. Thorax: similar to male, ratio of pronotal collar length to pronotum length 0.26–0.29, collar slightly depressed below pronotum (Figure 1), posterior margin of postnotum curved posteriorly, ratio of height of forefemur to length of forefemur 0.14–0.24, ratio of length of hind tibia to width of pronotum 0.88–1.09, elytriform forewing as in male. Abdomen and genitalia: as in genus description (Figure 3C, D).

A redescription of this species is included to achieve more consistent treatments for species of Old World (Hill 1984, 1987, 1991, 2013) and New World Hypselosomatinae (Carpintero and Dellapé 2006, Hoey-Chamberlain and Weirauch 2016).

Specimens of this species have been collected in Maryland, Georgia, Oklahoma, Texas, and Mississippi (USA).

Georgia: Clarke Co.: Whitehall Forest, 33.90694°N 83.35722°W, 07 May 1977 - 12 May 1977, R. Turnbow, 1 male (AMNH_IZC 00150699) (AMNH); 09 Jul 1977 - 15 Jul 1977, R. Turnbow, 1 male (UCR_ENT 00011913) (FSCA); 24 Jul 1977 - 31 Jul 1977, R. Turnbow, 1 adult sex unknown (UCR_ENT 00011914) (FSCA). Glynn Co.: Jekyll Island, 31.06833°N 81.41361°W, 18 Aug 1965, W. R. Suter, 2 females (UCR_ENT 00090439 and UCR_ENT 00090441), 1 male (UCR_ENT 00090440) (FMNH). Mississippi: Pontotoc Co.: Ecru, 34.35316°N 89.02311°W, 07 May 1980, W. H. Cross, 2 adults sex unknown (UCR_ENT 00028695, UCR_ENT 00028697) (USNM); 08 May 1980, W. H. Cross, 1 adult sex unknown (UCR_ENT 00028696) (USNM). Oklahoma: Latimer Co.: Latimer County, no specific locality, 34.83503°N 95.31025°W, May 1991, Karl Stephan, 1 male (UCR_ENT 00011915) (FSCA); May 2002, K. Stephan, 1 male (UCR_ENT 00094270) (TAMU). Texas: Wood Co.: 3 miles WSW Hainsville, 32.70833°N 95.41°W, 28 Apr 2000 - 30 Apr 2000, M. Yoder, 1 male (UCR_ENT 00094273) (TAMU).

USA: Arkansas: Chicot Co.: 0.2 mile east of Lake Chicot State Park, 33.37194°N 91.19578°W, 22 Jan 1977, R. G. Chenowith, 1 male (AMNH). Cross Co.: Village Creek State Park, cabin area, 35.16824°N 90.72144°W, 07 Feb 1987, C. E. Carlton, 1 male (AMNH). District of Columbia: no specific locality, 38.90719°N 77.03687°W, Jan or Jun 1879, Theo. Pergande, 1 adult sex unknown (USNM). Maryland: Montgomery Co.: Plummers Island, 38.97049°N 77.1763°W, 08 Oct 1905, Schwarz, Heidemann, 1 adult sex unknown (USNM); 14 Oct 1906, C. H. T. Townsend, 1 adult sex unknown (USNM). Virginia: Northampton Co.: Savage neck dunes natural area preserve, ca 6 km SW of East6lle, 37.32694°N 76.00774°W, 24 Jun 1999 - 28 Jul 1999, Virginia Division of Natural Heritage personnel, 1 male (VMNH); 27 Aug 1999 - 23 Sep 1999, Virginia Division of Natural Heritage personnel, 1 male (VMNH); 23 Sep 1999 - 28 Oct 1999, Virginia Division of Natural Heritage personnel, 2 males (VMNH). Virginia Beach Co.: Oceana Naval Air Station, City of Virginia Beach, ca. 1 mi/1.6 km SSE jct. U.S. Route 58 and Great Neck Road, 37.32694°N 76.00774°W, 14 Jun 1989 - 28 Jun 1989, K. A. Buhlmann, 2 males (VMNH).

Type material. Holotype: male: USA: Florida: Dade Co.: Everglades National Park, on side of road from Fla. 27, 25.28662°N 80.89865°W, 18 Jun 1965, W. R. Suter, ED_5198 (UCR_ENT 00090443) (FMNH).

Recognized among Glyptocombus species by males macropterous, general coloration light brown (Figure 1, G. suteri), C+Sc not desclerotized basal to junction with R1, Cu separated from M by m-cu cross vein, Cu distal to tc straight, R2 straight, rc and dc longer than bc (Figure 2D). Most similar to G. halbertae based on wing type in males, but differentiated by details of wing venation.

Male (Figure 1): macropterous, length: 1.47 mm; body ovoid. Coloration: head and body tan, legs from middle of tibiae to pretarsus pale. Surface and Vestiture: in frontal orientation forefemur without anterior stout, long seta, hind tibia with 5 erect medium-length stout setae ventrally on distal half, second tarsomere of hind leg with stout seta anteroventrally (Figure 1). Structure. Head: disc declivous. Thorax: ratio of pronotal collar length to pronotum length 0.26, collar at same level as pronotum (Figure 1), postnotum trapezoidal, ratio of height of forefemur to length of forefemur 0.26, ratio of length of hind tibia to width of pronotum 0.94, venation of forewing as in Figure 2D, veins wider than cells. Genitalia: as in genus description (Figure 3A, B).

Female. Unknown.

Named for the collector of the single known specimen of this species.

Known from the Everglades National Park in Dade County, Florida (USA).

MEXICO: Chiapas: Ocozocoautla de Espinosa Municipality Co.: Reserva El Ocote, Campo El Ocote, 17.04278°N 93.80778°W, 274 m, 26 Jul 1997 - 29 Jul 1997, Gonzalez, Woolley, & Galdamez, 1 female (UCR_ENT 00094274) (TAMU).

We have examined one undescribed female specimen of Glyptocombus from Chiapas in Mexico that has remained unassociated with male specimens (Figure 1; UCR_ENT 00094274). This specimen differs from females of Glyptocombus mexicanus sp. n. in being macropterous (elytriform forewings in males and females of Glyptocombus mexicanus sp. n.). Although wing polymorphism is common in Hypselosomatinae, species with elytriform forewings in males have not been documented to contain macropterous females (Hill 1984, Hoey-Chamberlain and Weirauch 2016).

Type material. Holotype: male: USA: Tennessee: Montgomery Co.: Clarksville, 36.52972°N 87.35944°W, Aug 1915, G. A. Runner (UCR_ENT 00028582) (USNM).

Recognized among species of Corixidea by the uniformly dark coloration, macropterous forewing without pale band, presence of laterally directed tergum 8 process, and very small and rounded anophoric process.

Male (Figure 4): macropterous, body length 1.36–1.58 mm; body elongate-oval. Coloration: general coloration dark brown to black, head, thorax, and costal area of the forewing dark brown to black, remainder of wing brown to dark brown, antenna and legs uniformly brown, abdomen dark brown to black. Surface and vestiture: head, pronotum and wing veins with short to medium-length light brown setae, abdomen densely covered with elongate, light brown setae, wing cells with distinct cell-like sculpture. Structure: Head: rounded in ventral view, width of eye ~1/3 width of synthlipsis, ocellus roughly equal in size to one ommatidium, positioned close to margin of compound eye. Thorax: pronotum trapezoidal, with posterior margin slightly curved posteriorly, scutellum triangular, with rounded tip, metepisternum with posterior margin rounded, blunt metasternal process widened apically, hind coxa with well-developed adhesive pad, tarsal formula 3-3-3, pretarsus with setiform parempodia, arolia present on fore- and midleg. Abdomen: with 5–6 visible sterna corresponding to segments 2+3 (if visible), 4, 5, 6, 7, and 9 (pygophore), sternum 2 longer than preceding sterna, weakly asymmetrical, terga of pregenital abdomen moderately sclerotized, tergum 7 rectangular or weakly trapezoidal, tergum 8 roughly rectangular with process and serrated patch on left side, process of tergum 8 with narrow base and widened apex, aligned with serrated patch on tergum, bearing spinous process. Genitalia: pygophore weakly asymmetrical, dorsoventrally flattened, with rounded apex, plane of parameres rotated at 90 degrees with respect to longitudinal body axis, right paramere straight, with robust base and elongate stem, left paramere much smaller than right, roughly as long as wide, aedeagus devoid of large conjunctival appendages, vesica forming 1¼ coils, with long slender process at midpoint of vesica, anophore well sclerotized and with small rounded process.

Female (Figure 4): macropterous, body length 1.42 mm, elongate-oval. Coloration, surface and vestiture: as in male. Structure: as in male but tarsal formula 2-2-3, arolia absent. Abdomen: with 4–5 visible sterna corresponding to segments 2+3 (if visible), 4, 5, 6, and 7; sternum 7 much longer than preceding sterna, symmetrical. Genitalia: ovipositor vestigial, spermathecal reservoir comma-shaped, spermathecal duct slightly longer than width of tergum 7, connected to left side of bursa copulatrix.

Figure 4. 

Habitus images of male and female Corixidea major in dorsal, lateral, and ventral view. UCR_ENT 00093506 shows a dry, point-mounted specimen; the other two specimens are ethanol-preserved.

Distinguished from other US Schizopteridae by a combination of relatively large size, blunt 3-segmented labium, absence of pronotal collar, presence of two triangular cells on costal margin of forewing (bordered by C+Sc, R+M, and R1, and C+Sc, R1, and R2), dorso-ventrally flattened pygophore with rounded apex, very long right paramere, and vesica with long subapical process. The genus Corixidea is a part of the Corixidea genus group, informally created by Emsley (1969), which also includes Hoplonannus McAtee & Malloch, 1925, Membracioides McAtee & Malloch, 1925, Oncerodes Uhler, 1894, Voccoroda Wygodzinsky, 1950, and Voragocoris Weirauch, 2012. Monophyly of the group is supported by the blunt labium, absence of a pronotal collar, venational similarities, and by limited molecular data when representatives of three genera were analyzed (Knyshov et al. 2016). However, generic limits that were proposed based on morphological features are unclear when undescribed diversity of the group and the poorly described original species are considered. We are currently working on a revision of the Corixidea genus group (Knyshov et al. unpublished), which will contain a comprehensive diagnosis of C. major in view of potential taxonomic changes within the group.

USA: Florida: Alachua Co.: Gainesville, 29.63527°N 82.37111°W, 24 m, 12 Jun 1966 - 15 Jun 1966, Ladonia O’Berry, 1 female (UCR_ENT 00011922) (FSCA). Broward Co.: Everglades National Park, 25.4775°N 80.96085°W, 24 Aug 1949 - 25 Aug 1949, H. S. Dybas, 1 male (UCR_ENT 00090856) (FMNH). Collier Co.: Florida: Collier Co. Immokalee, 26.41853°N 81.41741°W, 24/IV/2014-1/IV/2014, Susan Halbert, 4 males (UCR_ENT 00012031, UCR_ENT 00012032) (FSCA); 07 Jun 2007 - 14 Jun 2007, Selina Estrada, 1 female (UCR_ENT 00011920) (FSCA); 15 Mar 2012 - 22 Mar 2012, Scott Croxton, 1 female (UCR_ENT 00011918) (FSCA); 08 Nov 2012 - 15 Nov 2012, Scott Croxton, 1 female (UCR_ENT 00011919) (FSCA); 21 Feb 2013 - 28 Feb 2013, Scott Croxton, 1 male (UCR_ENT 00011921) (FSCA); 02 Jan 2014 - 09 Jan 2014, Susan Halbert, 1 male (UCR_ENT 00011867) (FSCA). Immokalee, 26.40611°N 81.41389°W, 13 Jul 2013 - 20 Jul 2013, Susan Halbert, 1 male (UCR_ENT 00011912) (FSCA); 20 Jul 2013 - 27 Jul 2013, Susan Halbert, 2 males (UCR_ENT 00011910, UCR_ENT 00011911) (FSCA); 14 Oct 2013 - 21 Nov 2013, Susan Halbert, 1 female (UCR_ENT 00011868) (FSCA); 07 Nov 2013 - 14 Nov 2013, Susan Halbert, 2 males (UCR_ENT 00011857), 1 female (UCR_ENT 00011858) (FSCA); 05 Dec 2013 - 12 Dec 2013, Susan Halbert, 1 female (UCR_ENT 00011866) (FSCA); 16 Jan 2014 - 23 Jan 2014, Susan Halbert, 1 male (UCR_ENT 00011864) (FSCA); 30 Jan 2014 - 06 Feb 2014, Susan Halbert, 1 male (UCR_ENT 00011865) (FSCA); 13 Mar 2014 - 20 Mar 2014, Susan Halbert, 1 female (UCR_ENT 00012026) (FSCA); 20 Mar 2014 - 22 Mar 2014, Susan Halbert, 2 males (UCR_ENT 00012027, UCR_ENT 00012028) (FSCA); 03 Apr 2014 - 10 Apr 2014, Susan Halbert, 1 male (UCR_ENT 00012029), 1 female (UCR_ENT 00012030) (FSCA); 01 May 2014 - 08 May 2014, Susan Halbert, 5 males (UCR_ENT 00012033-UCR_ENT 00012037) (FSCA); 22 May 2014 - 29 May 2014, Susan Halbert, 1 male (UCR_ENT 00012038) (FSCA); 29 May 2014 - 05 Jun 2014, Susan Halbert, 1 female (UCR_ENT 00012041), 1 male (UCR_ENT 00012042) (FSCA); 05 Jun 2014 - 12 Jun 2014, Susan Halbert, 1 male (UCR_ENT 00012039), 1 female (UCR_ENT 00012040) (FSCA); 03 Jul 2014 - 10 Jul 2014, Susan Halbert, 2 females (UCR_ENT 00012043, UCR_ENT 00012044) (FSCA); 10 Jul 2014 - 17 Jul 2014, Susan Halbert, 4 males (UCR_ENT 00012045-UCR_ENT 00012047, UCR_ENT 00012049), 1 female (UCR_ENT 00012048) (FSCA). Highlands Co.: Parker Islands 7 mi. S.E. of Lake Placid, 27.24476°N 81.29812°W, 13 Jun 1955, H. S. Dybas, 1 female (UCR_ENT 00090857) (FMNH). Hillsborough Co.: Hillsborough River State Park, 28.10735°N 82.27178°W, 07 Feb 1958, F. W. Mead, 1 female (UCR_ENT 00011923) (FSCA). Louisiana: Vermilion Co.: Gueydan, 30.03059°N 92.50833°W, 01 Jul 1925, E. R. Kalmbach, 1 male (UCR_ENT 00026654) (USNM). Oklahoma: Latimer Co.: Latimer County, no specific locality, 34.83503°N 95.31025°W, Jul 1989, Karl Stephan, 2 females (UCR_ENT 00011924, UCR_ENT 00011925), 1 male (UCR_ENT 00011926) (FSCA); Jun 2002, K. Stephan, 2 males (UCR_ENT 00093519, UCR_ENT 00093517) (TAMU); Jul 2002, K. Stephan, 3 females (UCR_ENT 00093528, UCR_ENT 00093527, UCR_ENT 00093510), 4 male (UCR_ENT 00093512, UCR_ENT 00093511, UCR_ENT 00093508, UCR_ENT 00093509) (TAMU); Aug 2002, K. Stephan, 1 female (UCR_ENT 00093516), 4 males (UCR_ENT 00093518, UCR_ENT 00093505-UCR_ENT 00093507) (TAMU). Texas: Brazos Co.: College Station, 30.62778°N 96.33417°W, 03 May 1978 - 09 May 1978, J. A. Jackman, Light Trap, 1 male (UCR_ENT 00094213) (TAMU). College Station, Lick Creek Park, 30.57755°N 96.29052°W, 04 Oct 1987 - 18 Oct 1987, R. Wharton, 1 female (UCR_ENT 00094184) (TAMU). Cameron Co.: Sabal Palm Grove Sanctuary, 25.85016°N 97.4244°W, 16 Oct 1993, Backmon, Quinn & Riley, 1 male (UCR_ENT 00094182), 1 female (UCR_ENT 00094183) (TAMU). Wood Co.: Little Sandy National Wildlife Refuge, 32.57611°N 95.24722°W, 19 Sep 1998, J.D. Oswald, 10 males (UCR_ENT 00094214, UCR_ENT 00094215, UCR_ENT 00093514, UCR_ENT 00093520-UCR_ENT 00093526), 3 females (UCR_ENT 00094216, UCR_ENT 00093513, UCR_ENT 00093515) (TAMU).

Figure 5. 

Male and female genitalic features of Corixidea major. A. Male abdomen (UCR_ENT 00012039) in dorsal view; B. Female abdomen (UCR_ENT 00012040) in dorsal view.

Nomenclature.Reuter (1891) described the subgenus Schizoptera (Nannocoris) to accommodate two new species with distinctly elongated heads, Schizoptera (Nannocoris) nebulifera Reuter, 1891 and Schizoptera (Nannocoris) tuberculifera Reuter, 1891. Whereas Schizoptera is feminine, Nannocoris is masculine, because “coris” is Greek for “bug” and a noun with masculine gender. When McAtee and Malloch (1925) elevated Nannocoris to genus level, they failed to adjust the gender of previously described species from feminine to masculine and also treated their newly described species as feminine. Nevertheless, subsequent authors continued to treat Nannocoris as feminine. Nannocoris arenaria Blatchley, 1926 was corrected to Nannocoris arenarius Blatchley, 1926 by Henry (1988) without comment. We here adjust the genders to masculine for all remaining names that were originally treated as feminine and are not patronyms: N. nebuliferus Reuter, 1891; N. tuberculiferus Reuter, 1891; N. capitatus (Uhler, 1894); N. nasus McAtee & Malloch, 1925; N. flavomarginatus McAtee & Malloch, 1925.

A recent molecular phylogenetic analysis of Nannocoris (Frankenberg et al. 2018) included one North American specimen (UCR_ENT 00094252), a female from Texas that we have assigned to the new species N. brevipilus below. This taxon was recovered as part of the pricei species group that is diagnosed by the opening of the male-specific vertex gland being located in a posterior position, i.e. posteriorly on the vertex or on the pronotal collar. The opening is more anterior on the head in males of all other Nannocoris species we have examined (data not shown; see Figure 1 in Frankenberg et al. [2018] for selected species) and it is absent in some species. Males of N. arenarius and the second newly described species, N. anophorus, share the pronotal position of the opening of the vertex gland. We therefore tentatively assign all three Nearctic species to the pricei species group.

Type material. Holotype: male: USA: Texas: Hays Co.: 6 mi. NW Dripping Springs, 30.22648°N 98.18493°W, 408 m, 03 Jun 2006 - 30 Jun 2006, E. G. Riley, et al. (UCR_ENT 00094264) (TAMU).

Recognized among species of Nannocoris by relatively short head, ovoid body and forewing shape, yellow costal and posterior claval margins, long setae on forewing veins, vertex gland opening on depression of pronotal collar, short, smoothly rounded vesica with less than one coil, apically bifurcating right paramere, and long and sigmoid anophoric process that reaches anteriorly to terga 5 or 6.

Male (Figure 6): macropterous, length: 1.16 mm; body ovoid. Coloration: general coloration light brown, with head yellowish brown, lighter colored anteriorly, scutellum and costal and posterior claval margins yellow, legs pale yellow (Figure 6). Surface and vestiture: forewing veins with long white setae, pronotum and head with dense, short, recumbent white setae. Structure: Head: moderately elongate, ca. as high as long, labium very slender, barely surpassing posterior margin of pronotal collar, eye small, ~1/6 of greatest head width. Thorax: opening of vertex gland medially on pronotal collar, opening large (Figure 6), forewing macropterous (Figure 6), costal margin slightly explanate, R1 straight, obliquely traversing cells scc and rc1-rc2, merging with Sc close to where R2 reaches wing margin, An1 almost reaching Cu. Abdomen: tergum 8 slightly asymmetrical, transverse, right half slightly curved anteriad. Genitalia (Figure 7A, D): left laterotergite 9 long and slender, posteriad-oriented spine, right paramere with broad base and narrow, bifurcating apex, left paramere triangular, vesica forming smoothly rounded ¾ loop, anophoric process with anterior broad portion adjacent to tergum 8 and long, sigmoid process reaching anteriorly to approx. level of tergum 5 or 6.

Female: Unknown.

Named for the long anophoric process that is unusually prominent among species of Nannocoris, especially in other species of the pricei species group.

The holotype was collected using a flight intercept trap.

Known only from Hays County in Texas.

Figure 6. 

Habitus images of Nannocoris spp. in dorsal and lateral views and close-ups of head and pronotum of males to document the unusual position of the vertex gland opening on the pronotal collar.

Type material. Holotype: male: USA: Florida: Pinellas Co.: Dunedin, 28.027°N 82.77126°W, Jan 4- Feb 16, W.S. Blatchley (PURC). Paratypes: same data as holotype, 11 specimens.

Recognized among species of Nannocoris by relatively short head, ovoid body and forewing shape, yellow costal and posterior claval margins, short setae on forewing veins, vertex gland opening on depression of pronotal collar, short and thin, slightly sigmoid vesica, apically bifurcating right paramere, and relatively short s-shaped anophoric process with slender base that reaches anteriorly to tergum 7. Similar to N. brevipilus, but distinguished by slender base of anophoric process.

Male (Figure 6): submacropterous, length: 1.04–1.09 mm, body broadly ovate. Coloration: general coloration light brown, with head somewhat lighter, scutellum and costal and posterior claval margins yellow, legs pale yellow with basal ¾ of femora light brown (Figure 6). Surface and vestiture: head, pronotum and forewing veins with dense, short, recumbent white setae. Structure: Head: moderately elongate, slightly longer than high, labium very slender, reaching to approx. mid coxa, eye small, ~1/6 of greatest head width. Thorax: opening of vertex gland medially on pronotal collar, opening large (Figure 6); forewing submacropterous (Figure 6), costal margin slightly explanate, R1 sinuously traversing cells scc and rc1-rc2, merging with Sc proximal to R2 reaching wing margin. Abdomen: tergum 8 strongly asymmetrical, much wider in left half, right half narrow and curved anteriad. Genitalia (Figure 7B, E): left laterotergite 9 relatively short, laterad-oriented spine, right paramere with narrow, bifurcating apex, left paramere elongate-triangular, vesica sinuous, not forming loop, anophoric process with anterior broad portion adjacent to tergum 8 and s-shaped process reaching anteriorly to posterior margin of tergum 7, base of s-shaped process slender.

Female (Figure 6): similar to male, length: 1.00–1.02 mm. Genitalia: as in Figure 7G.

Figure 7. 

Male and female genitalic features of Nannocoris spp. A–C Male abdomen: A N. anophorus (UCR_ENT 00094264) B N. arenarius (UCR_ENT 00124097) C N. brevipilus (UCR_ENT 00093425) D–F Male anophore with associated sclerites: D N. anophorus (UCR_ENT 00094264) E N. arenarius (UCR_ENT 00124097) F N. brevipilus (UCR_ENT 00094257) G N. arenarius, female abdomen (UCR_ENT 00124095).

Specimens have been collected from leaf litter associated with Quercus myrtifolia Wild, Quercus chapmanii Sarg, and Panicum grass; berleseate of dried cattle manure; and flight intercept traps.

Specimens examined by us are from Highlands, Pinellas, and Polk Counties in Florida, including specimens collected at the type locality. Specimens from Georgia, North Carolina, and Virginia deposited at NCSU and VMNH were identified as N. arenarius by Robert L. Blinn, Richard L. Hoffman, and Steven L. Roble. Nannocoris anophorus and Nannocoris brevipilus are currently known only from Texas; the male illustrated by Hoffman et al. (2006) is submacropterous. We therefore assume that the specimens from Georgia, North Carolina, and Virginia are N. arenarius, but male genitalic structures should be examined to confirm this hypothesis.

USA: Florida: Highlands Co.: Lake Placid, Archbold Biological Station, 27.188°N 81.337°W, 03 Feb 1984, M. Deyrup, 2 females (UCR_ENT 00124094, UCR_ENT 00124095), 1 male (UCR_ENT 00124097) (ABS); 01 Feb 1986, M. Deyrup, 1 female (UCR_ENT 00124096) (ABS). Pinellas Co.: Dunedin, 28°N 82°W, Dec 1929 - Apr 1930, W. S. Blatchley, 1 male (UCR_ENT 00120010) (NHMUK). Polk Co.: Lake Wales Ridge Forest, 27.66388°N 81.39455°W, 16 Jul 2009, H. Otte, M. Deyrup, N. Deyrup, 1 female (UCR_ENT 00124093) (ABS). Georgia: Bryan Co.: no specific locality, 32.16562°N 82.90008°W, 17 Sep 1974, R. Beshear, 1 female (USNM).

North Carolina: Davidson Co.: Davidson, 35.77224°N 80.1878°W, 11 Jul 1976, T. Daggy, 75 males (NCSU_ENT 00216994-NCSU_ENT 00216998) (NCSU). Mecklenburg Co.: Davidson College, Davidson, 35.50173°N 80.84678°W, 839 m, 11 Nov 1955, T. Daggy, 5 males (NCSU). Virginia: Suffolk Co.: South Quay pine barrens, “100 m north of the canal”, ca. 13 km S of Franklin, 36.55843°N 76.90858°W, 02 Jul 2003 - 06 Aug 2003, S.M. Roble, 2 males, 1 female (VMNH); 06 Aug 2003 - 13 Sep 2003, S.M. Roble, 2 males (VMNH).

Type material. Holotype: male: USA: Texas: Sabine Co.: Beech Bottom, 9 mi E Hemphill, 31.38226°N 93.70455°W, 05 Jun 1989 - 17 Jun 1989, R. Anderson & E. Morris (UCR_ENT 00094257) (TAMU). Paratype: USA: Texas: Angelina Co.: Angelina Nat’l. Forest ca. 3 mi. NE Rockland, 31.05528°N 94.36833°W, 02 May 1996 – 16 May 1996, Clarke, Menard, & Riley, 1 male (UCR_ENT 00093425) (TAMU).

Recognized among species of Nannocoris by relatively short head, ovoid body and forewing shape, yellow costal and posterior claval margins, short setae on forewing veins, vertex gland opening on depression of pronotal collar, short and thin, slightly sigmoid vesica, apically bifurcating right paramere, and relatively short s-shaped anophoric process with slender base that reaches anteriorly to tergum 7. Similar to N. brevipilus, but distinguished by slender base of anophoric process.

Male (Figure 6): submacropterous, length: 1.04–1.09 mm, body broadly ovate. Coloration: general coloration light brown, head somewhat lighter, scutellum and costal and posterior claval margins yellow, legs pale yellow with basal ¾ of femora light brown (Figure 6). Surface and vestiture: head, pronotum and forewing veins with dense, short, recumbent white setae. Structure: Head: moderately elongate, slightly longer than high, labium very slender, reaching to ca. midcoxa, eye small, ~1/6 of greatest head width. Thorax: opening of vertex gland medially on pronotal collar, opening large (Figure 6), forewing submacropterous (Figure 6), costal margin slightly explanate, R1 sinuously traversing cells scc and rc1-rc2, merging with Sc proximal to R2 reaching wing margin. Abdomen: tergum 8 strongly asymmetrical, much wider in left half, right half narrow and curved anteriad. Genitalia (Figure 7B, E): left laterotergite 9 relatively short, laterad-oriented spine, right paramere with narrow, bifurcating apex, left paramere elongate triangular, vesica sinuous, not forming loop, anophoric process with anterior broad portion adjacent to tergum 8 and s-shaped process reaching anteriorly to posterior margin of tergum 7, base of s-shaped process slender.

Female (Figure 6): similar to male, length: 1.11–1.23 mm, shorter and more ovoid than male, yellow borders of costal and claval margin less pronounced, forewings shorter.

Named for the short vestiture on the wings that distinguishes this species from the second species occurring in Texas, N. anophorus; a combination of the Latin brevis (short) and pilus (hair).

We treat a series of female specimens collected in Bastrop County as conspecific with N. brevipilus. We refrain from treating these specimens as paratypes, because no syntopic males are available and females of N. anophorus are unknown. We argue that these specimens are unlikely to be conspecific with N. anophorus because of the short vestiture, but we cannot exclude the possibility that they are females of a yet undiscovered species of Nannocoris.

Males were collected using pitfall and flight intercept traps, females with Berlese extraction.

Known from Angelina, Bastrop, and Sabine Counties in Texas.

USA: Texas: Bastrop Co.: Bastrop State Park, 30.11222°N 97.26056°W, 11 Mar 1995, R. Wharton, 6 females (UCR_ENT 00094250-UCR_ENT 00094255), 1 female (UCR_ENT 00094256) (TAMU).