Research Article |
Corresponding author: Randall T. Schuh ( schuh@amnh.org ) Academic editor: Alfred Wheeler
© 2018 Randall T. Schuh, Ruth Salas.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Schuh RT, Salas R (2018) Henryognathus thomasi, a new genus and new species of Arctostaphylos-feeding plant bug from western North America (Miridae, Phylinae, Phylini). In: Wheeler Jr AG (Ed.) A Festschrift Recognizing Thomas J. Henry for a Lifetime of Contributions to Heteropteran Systematics. ZooKeys 796: 281-289. https://doi.org/10.3897/zookeys.796.21432
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Henryognathus, new genus, with the single included new species H. thomasi, is described from western North America. The taxon is recorded as feeding on species of Arctostaphylos (Ericaceae) in California and Arizona. Coloration and many morphological attributes are similar to species of Plagiognathus Fieber, but the structure of the male genitalia is distinctive.
Arizona, California, Ericaceae , host plant, Oncotylina
Among the North American members of the subtribe Phylini: Oncotylina (
This paper, and the new taxa described in it, are dedicated to Thomas J. Henry in recognition of his contributions to our knowledge of Miridae and Lygaeoidea. Through a combination of extensive fieldwork, coupled with faunistic, revisionary, and phylogenetic studies, Tom has advanced our understanding of true bug taxonomy and host associations. On behalf of all heteropterists who have had occasion to use the collections of the United States National Museum of Natural History, we recognize the contributions Tom has made to the organization, presentation, and content of the collections of that institution, bringing to light its status as one of the world’s truly great resources for the study of true bugs.
In total, 338 specimens were examined during the present study. “Unique specimen identifiers” (USIs), composed of an institution and project code (AMNH_PBI) and a unique number (00414919), were affixed to each specimen. Specimen data can be viewed on line through: research.amnh.org/pbi/heteropteraspeciespage/, discoverlife.org, and idigbio.org/portal. Measurements were prepared using a digital micrometer attached to a movable stage, the data being recorded directly to a spreadsheet; all measurements are in millimeters. Habitus images were prepared using a Microptics-USA/Visionary Digital photomicrographic system as developed by Roy Larimer; multiple layers were stacked using Helicon Focus software. Illustrations of the male genitalia were prepared as pencil drawings by using a Nikon Eclipse 80i microscope, then scanned and rendered using Adobe Illustrator.
The following institutional acronyms are used in the specimens examined section for specimen deposition:
Henryognathus thomasi, new species.
Recognized by the elongate ovoid body, the moderately prognathous head, the pale tibiae with contrasting dark spots at the bases of the dark spines (Fig.
Size moderate (Table
Surface and vestiture: Dorsum weakly granular, smooth, weakly shining. Vestiture of dorsum composed of reclining pale, golden-shining, simple setae.
Structure: Hemelytra sloping laterally, corial margins very weakly convex; frons tumid, clypeus visible from above. Tarsal claws similar to those in Plagiognathus (Schuh, 2001: figs 37C, 38D), of moderate length, broad at base, bent medially, with a small, flaplike pulvillus just proximad of bend in claw.
Genitalia (Fig.
Phallotheca: L-shaped, with a broad posterolateral opening on distal portion. Left paramere short, anterior process with a strong subapical seta; right paramere elongate, parallel sided over most of length, with a fingerlike apex.
Female: Very similar in shape and proportions to male (Fig.
Species | Length | Width | ||||||||||
Body | CunClyp | Head | Pron | Scut | Cun | Head | Pron | Scut | InterOc | AntSeg2 | ||
♂ (N = 12) | Mean | 3.73 | 2.56 | 0.30 | 0.45 | 0.45 | 0.55 | 0.73 | 1.04 | 0.53 | 0.34 | 1.27 |
SD | 0.23 | 0.16 | 0.04 | 0.03 | 0.03 | 0.03 | 0.02 | 0.05 | 0.04 | 0.01 | 0.09 | |
Range | 0.83 | 0.56 | 0.13 | 0.11 | 0.11 | 0.11 | 0.09 | 0.18 | 0.12 | 0.03 | 0.27 | |
Min | 3.41 | 2.34 | 0.23 | 0.41 | 0.41 | 0.51 | 0.68 | 0.95 | 0.48 | 0.32 | 1.15 | |
Max | 4.24 | 2.90 | 0.36 | 0.52 | 0.52 | 0.62 | 0.76 | 1.13 | 0.60 | 0.36 | 1.41 | |
♀ (N = 6) | Mean | 3.93 | 2.77 | 0.39 | 0.51 | 0.48 | 0.51 | 0.75 | 1.11 | 0.57 | 0.38 | 1.28 |
SD | 0.09 | 0.07 | 0.03 | 0.03 | 0.02 | 0.02 | 0.02 | 0.05 | 0.03 | 0.02 | 0.09 | |
Range | 0.21 | 0.17 | 0.08 | 0.08 | 0.06 | 0.05 | 0.04 | 0.14 | 0.06 | 0.04 | 0.25 | |
Min | 3.83 | 2.66 | 0.35 | 0.47 | 0.45 | 0.49 | 0.73 | 1.05 | 0.54 | 0.36 | 1.16 | |
Max | 4.04 | 2.84 | 0.43 | 0.55 | 0.51 | 0.54 | 0.77 | 1.19 | 0.60 | 0.41 | 1.41 |
A combination of Henry (Thomas J. Henry) and -gnathus, from the Greek gnathos, jaw, in reference to the similarity with species of Plagiognathus.
Henryognathus falls within the diagnosis of Plagiognathus Fieber, as rendered by
Recognized by the moderate size, pale, yellow to yellow-orange coloration in preserved specimens (Fig.
Male: Very elongate ovoid, of moderate size; mean total length 3.73, mean length apex clypeus-cuneal fracture 2.56, mean width across pronotum 1.04 (Table
Coloration (Fig.
Surface and vestiture (Fig.
Structure: Hemelytra sloping laterally, corial margins very weakly convex; frons tumid, clypeus visible from above; head projecting below eye by diameter of antennal segment 1; labium reaching to at least posterior margin of abdominal sternum 4. Tarsal claws as in generic description.
Genitalia (Fig.
Female: Very similar in shape and proportions to male. Mean total length 3.93, mean length apex clypeus-cuneal fracture 2.77, mean width across pronotum 1.11 (Table
Named for Thomas J. Henry.
Arctostaphylos pungens Kunth, A. viscida Parry (fig. 1C, D), and A. sp. (Ericaceae). We regard the very few specimens labeled as occurring on Mimosa biuncifera Benth. (Fabaceae), Quercus turbinella Greene (Fagaceae), and Rhamnus californica Eschsch. (Rhamnaceae) to represent either sitting records or the result of commingling of specimens in the field. A total of 54 specimens was collected at light or host information was not recorded by the collector.
The habit of feeding on Arctostaphylos is shared with other Phylinae such as Arctostaphylocoris arizonensis Schuh and Schwartz, A. manzanitae (Knight), Atractotomus schwartzi Stonedahl, four species of Ceratopsallus Schuh (
(Fig.
HOLOTYPE: USA: California: Tulare Co.: NE of Springville on Bear Creek Rd near Scicon, 36.21394°N, 118.7716°W, 700 m, 23 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry (Ericaceae), det. A. Sanders UCR140624, 1♂ (AMNH_PBI 00321005) (AMNH).
PARATYPES: USA: Arizona: Gila Co.: 8 mi SW jct Rts 87 and 188 (off Rt 87), Tonto National Forest, 33.55989°N, 111.21341°W, 1219 m, 27 May 1983 - 28 May 1983, R. T. Schuh and G. M. Stonedahl, 1♂ (AMNH_PBI 00414940) Arctostaphylos pungens Kunth (Ericaceae), 3♂ (00414935-00414937), 2♀ (00414938, 00414939) (AMNH). Old CCC Campground S of Globe on Pioneer Pass Rd, 33.39417°N, 110.78583°W, 1433 m, 30 May 1983 - 31 May 1983, R.T. Schuh, G.M. Stonedahl and B.M. Massie, 21♂ (00414898-00414918), 10♀ (00414925-00414934) (AMNH), 1♂ (00414892), 1♀ (00414919) (CAS), 1♂ (00414893), 1♀ (00414920) (
USA: California: Mariposa Co.: W of Mariposa near Mt. Bullion, 37.49936°N, 120.0435°W, 675 m, 25 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry (Ericaceae), det. Field ID, 1 nymph (00415068) (AMNH).
See diagnosis.
Our thanks to Steve Thurston, American Museum of Natural History, for preparing the digital specimens images and digitizing the male genitalic figures and Michael D. Schwartz, Canadian National Insect Collection, Ottawa, for preparing the distribution map. We thank the following curators and their respective institutions for the loan of specimens examined during the course of this project: Canadian National Collection of Insects (Ottawa), Zachary Falin (Snow Entomological Museum, University of Kansas), Cheryl Barr (Essig Entomological Museum, University of California, Berkeley), Steve Heydon (Bohart Entomological Museum, University of California, Davis), University of California Entomological Research Museum (Riverside), United States National Museum of Natural History (Washington, DC), and Zoological Institute, Russian Academy of Sciences (St. Petersburg).