Eucorydia westwoodi (Gerstaecker, 1861).

Holotype: China • male; Guizhou Prov., Dushan County, Mawei Town; 9 June 2019; Lu Qiu leg; SWU-BB-CC-025001.

The new species resembles the Hainan population of E. dasytoides but is distinctly smaller (overall length 14.00 mm vs 18.60–22.30 mm in E. dasytoides; Qiu et al. 2017). The orange-yellow transverse band on the tegmina is markedly narrower in the new species. Additionally, the last four abdominal segments are entirely black in E. parva sp. nov., whereas in the Hainan population of E. dasytoides only the last three segments are black (Qiu et al. 2017: fig. 4G), with the lateral margins of segments 4 and 5 black (Qiu et al. 2017: fig. 2A, B).

Holotype (male). Measurements (mm). Overall length: 14.00; body length: 11.00; body width (excluding tegmina): 6.37; tegmen length × width: 12.30 × 5.00; pronotum length × width: 2.10 × 4.10.

Coloration. Pronotum metallic greenish blue, with black setae. Tegmina with basal half metallic greenish blue, a transverse orange-yellow median band, and apical half nearly black; basal pubescence white, hind wings brown. Head metallic dark blue. Eyes black, ocelli, antennal sockets, and ante-clypeus white. Antennae (except the white apical portion), labial palpi, and maxillary palpi dark brown. Legs dark brownish black, covered with brown pubescence. Leg spines dark brown with reddish brown tips. Last four abdominal sternites blackish brown, remaining sternites yellow.

Head. Slightly rounded, subtriangular. Eyes widely separated, ocelli small and rounded. Interocular space wider than the distance between antennal sockets, and the latter wider than the distance between ocelli. Two shallow depressions present between the antennal sockets. Labrum with a round median impression (Fig. 2C). Pronotum. Transverse, densely nodulose and setose, widest near the posterior margin, median area with dark stripes (Fig. 2D). Tegmina and hind wings. Basal region of tegmina with a patch of white pubescence (Fig. 2A). Sc swellings present. Legs. Slender. Front femur Type C1 (Fig. 2E). Tibiae with multiple big spines, including its apical part. Pulvilli and arolia present. Tarsal claws symmetrical, unspecialized. Abdomen. T8 specialized and asymmetrical; posterolateral corners produced and spinose (Fig. 2F). Supra-anal plate transverse, with posterior margin rounded and broadly concave, posterolateral corners rounded. Paraprocts basally bifurcate, extending outward, irregularly narrow, lamellate. Cerci long and slender (Fig. 2G). Subgenital plate asymmetrical; posterior margin nearly straight; left margin concave upward, bearing a left stylus distinctly smaller than the right; right stylus angled at proximal third (Fig. 2H). Genitalia. Strongly sclerotized. L2 irregularly plate-like; left portion extended into a slender, curved, arm-like process, right portion with a rounded, blunt protrusion. L3 (genital hook) curved, with apex sharp. Basal portion of L7 extended and convex, apical part distinctly narrowed. R2 slightly rounded (Fig. 2I).

Female. Unknown.

Nymph. Unknown.

Ootheca. Unknown.

The male holotype was found freshly dead on a roadside at the edge of a town surrounded by karst landscapes.

The specific epithet is derived from the Latin adjective parvus, meaning “small”, and refers to the relatively small body size of this species compared with its congeners. The name is feminine in gender.

Interspecific genetic distances between the new species and its sequenced congeners range from 10.85–19.77%. The shapes of L7 and R2 are similar to those of E. dasytoides (Qiu et al. 2017), but the new species can be easily distinguished by the presence of white pubescence at the base of the tegmina and its significantly smaller body size.

Holotype: China • male; Shaanxi Prov., Mt. Qinling; July 2022; collector unknown; SWU-BB-CC-026001. Paratype: China • 2 male & 2 females; same collection data as holotype; SWU-BB-CC-026002 to SWU-BB-CC-026005.

The new species is externally similar to the purpuralis population of E. dasytoides (Zhejiang Prov., Mt. Tianmushan; Qiu et al. 2017: fig. 5F, G), but can be readily distinguished by the shape of the male supra-anal plate: the posterior margin is shallowly emarginated in E. dasytoides, whereas deeply concave in the new species (Fig. 3H).

Holotype (male). Measurements (mm). Overall length: 19.24; body length: 16.04; body width (excluding tegmina): 8.20; tegmen length × width: 13.74 × 5.53; pronotum length × width: 7.97 × 4.62.

Coloration. Pronotum metallic bluish-green, covered with black setae. Tegmina with three orange-yellow spots, the basal part metallic bluish-green, and the apical part dark brown. Hind wings uniformly brown. Head metallic dark blue. Eyes black, ocelli and antennal sockets white. Hind-clypeus black, Ante-clypeus white. Middle part of labrum white, dark brown on the remaining parts. Antennae (excluding the whitish apical segments), labial palpi and maxillary palpi black. Legs black, covered with black pubescence, spines on legs dark blackish-brown with reddish-brown apices. Pulvilli white, arolia nearly black. Sternites black, with orange-yellow lateral stripes on sternites III–V.

Head. Drop-shaped, slightly extending beyond the pronotum, frons flat. Interocular space relatively wide, distance between ocelli nearly equal to that between antennal sockets, both smaller than interocular space. Ocelli small. Middle of labrum prominently raised into a mound-like shape, with a distinct small tongue-shaped protrusion at the center of the lower margin (Fig. 3C). Pronotum. Triangular, covered with short pubescence (Fig. 3D). Tegmina and hind wings. Tegmina with Sc swellings present, with orange markings on the lateral margin and two obscure orange markings medially, hind wings without markings. Legs. Slender. Front femur Type C1. Tibiae with multiple large spines, pulvilli and arolia present. Tarsal claws unspecialized (Fig. 3E, F). Abdomen. Covered with short brown setae (Fig. 3B). T8 specialized and slightly asymmetrical; posterolateral corners spinose and produced, with the right projection longer than the left (Fig. 3G). Supra-anal plate transverse, posterior margin broadly arcuate with a deep median concavity, lateral corners rounded and protruding. Paraprocts basally bifurcate, extending outward, irregularly narrow, lamellate. Cerci slender (Fig. 3H). Subgenital plate covered with short black setae, anterior margin asymmetrical, posterior margin produced, right stylus angled at proximal third and slightly larger than left (Fig. 3I). Genitalia. Highly sclerotized. L2 irregularly plate-like; left portion extending into a slender, curved arm-like process, right portion with an acute protrusion. L3 arcuate with acute apex. L7 subrounded in basal half, evenly elongated in distal half, with a bud-like apex. R2 slightly elongated, basal right with a corniform protrusion (Fig. 3J).

Male (paratypes). Generally matching holotype. Overall length: 19.24; body length: 16.04; body width (excluding tegmina): 8.63; tegmen length × width: 15.33 × 6.13; pronotum length × width: 7.97 × 4.62.

Female (paratypes). Measurements (mm). Overall length: 13.38–13.45; body length: 13.02–13.25; body width (excluding tegmina): 8.32–8.46; tegmen length × width: 10.15–10.16 × 4.71–5.15; pronotum length × width: 6.69–6.94 × 3.40–4.36.

Coloration. Similar to male holotype, except orange-yellow tegminal markings indistinct medially and head almost entirely black.

Head. Vertex with pubescence, maxillary and labial palpi pubescent. Frons convex, labrum nearly trapeziform (Fig. 4C). Pronotum. Subelliptical and pubescent, widest near the posterior margin (Fig. 4D). Tegmina and hind wings. The posterior margin of tegmina nearly level with the end of abdomen (Fig. 4A). Legs. Slender, pulvilli and arolia present (Fig. 4B). Abdomen. S3-S5 with yellow lateral maculae; tergites unspecialized. Supra-anal plate dark blackish-brown, posterior margin slightly concave medially, surface setose (Fig. 4E). Subgenital plate without valvar; apical margin arcuately produced, surface setose (Fig. 4F). Genitalia. Paraprocts with long marginal setae; middle of the inner margin extending inward to form a leaf-like protrusion; cerci short, segmented, densely setose. Paratergites narrow and band-shaped. Crosspiece relatively large. Posterior lobes of valvifer II distinct, apex irregular. Ovipositors large and slender, surface smooth. Spermathecal plate highly sclerotized, medially constricted, trapezoidal. Basivalvula broad, with two spherical protrusions medially. Vestibular sclerite highly sclerotized, hillock-shaped (Fig. 4E). Spermathecal duct short, spermatheca tubular with expanded and spiraled apex (Fig. 4G).

Nymph. Unknown.

Ootheca. Unknown.

The specific epithet qinlingensis refers to the Mt. Qinling, the type locality of this species. The name is feminine in gender.

This species differs morphologically from the zonata population of E. dasytoides by the following characters: 1) the orange band on the tegmina is markedly wider in the latter (Qiu et al. 2017: fig. 4A–D); 2) the posterior margin of the male supra-anal plate is relatively flat in the latter (Qiu et al. 2017: fig. 6B), whereas it is distinctly concave in the new species; and 3) the two taxa are geographically isolated, with a straight-line distance approximately 1700 km between the Mt. Qinling and Mt. Lalashan (Taiwan Prov.). Despite the relatively low genetic distance (3.39%), the combined evidence from morphological differences, genitalic characters and geographic isolation support their recognition as distinct species.

Holotype: China • male; Hubei Prov., Shennongjia Forestry District, Zhuheyuan; June 2023; Chun-Hong Wang leg; SWU-BB-CC-027001.

This species can be readily distinguished from other congeners by its entirely black antennae lacking meristal annuli (Fig. 5F). It otherwise resembles the zonata population of E. dasytoides, but differs in the following characters: tegminal markings: the orange-yellow markings possess a median fissure, and the curvature of L3 is distinctly stronger than in E. dasytoides.

Holotype (male). Measurements (mm). Overall length: 22.32; body length: 18.01; body width (excluding tegmina): 8.62; tegmen length × width: 16.32 × 6.88; pronotum length × width: 7.96 × 3.96.

Coloration. Head, eyes and antennae black, ocelli white. Ante-clypeus with a white band-shaped marking; labrum blackish-brown, with only the apex of the median protrusion white. Pronotum metallic bluish-green. Tegminal overall metallic bluish-green, middle part with a yellow band. Legs dark brownish-black, covered with brown pubescence, spines dark brown with reddish-brown apices. Eversible glands, pulvilli, and arolia white. The last four sternites black, remaining sternites orange-yellow and median with symmetrical black marking.

Body. Slightly broad (Fig. 5A-B). Head. Inverted triangular, almost entirely covered by pronotum. Frons flat, with two small medial depressions. Interocular space relatively wide, distance between ocelli slightly smaller than that between antennal sockets, both narrower than interocular space. Ocelli small, rounded (Fig. 5C). Pronotum. Transverse, widest near the posterior margin, densely covered with short setae, with indistinct dark longitudinal stripes medially (Fig. 5D). Tegmina and hind wings. Tegmina with Sc swellings present. Hind wings hyaline, apex brown, anterior margin of the RA area with an elongate yellow spot, venation brown (Fig. 5A). Legs. Slender. Front femur Type C1 (Fig. 5E). Tibiae with multiple large spines, pulvilli and arolia present. Tarsal claws symmetrical, unspecialized (Fig. 5B). Abdomen. Setose, eversible glands distinct. Posterior margin of the supra-anal plate constricted medially, forming a clear notch, lateral posterior angles rounded. Paraprocts basally bifurcate, extending outward, irregularly narrow, and lamellate; median sclerites lost during dissection (Fig. 5G). T8 specialized and asymmetrical, posterolateral angles spinose-produced and pubescent (Fig. 5H). Subgenital plate asymmetrical and densely setose; styli subequal in length, each angulate to varying degrees at proximal third (Fig. 5I). Genitalia. Highly sclerotized. L2 plate-like, left portion extending into a slender, curved arm-like process, right portion with a corniform protrusion. L3 strongly curved, semicircular, with a small hook at the apex. L7 with base rounded, medially elongated, apex bud-shaped. R2 nearly elongate-elliptical (Fig. 5J).

Female. Unknown.

Nymph. Unknown.

Ootheca. Unknown.

The specific epithet absens is a Latin adjective, meaning absent, and refers to the absence of meristal annuli. The name is feminine in gender.

The species resembles the zonata population of E. dasytoides, but differs in the medially interrupted tegminal markings, a more strongly curved L3, and genetic distances of 9.35–18.93% from its congeners. These combined morphological and molecular differences support its recognition as a distinct species.

China • 1 female; Yunnan Prov., Dehong Jingpo Autonomous Prefecture, Yingjiang County, Shangbangwa Village; 2021; Jia-Zhi Zhang leg; SWU-BB-CC-021028 • 1 female; Yunnan Prov., purchased from the cockroach pet market; SWU-BB-CC-021023.

Supra-anal plate dark yellowish brown, posterior margin evenly rounded, surface setose. Paraprocts with long setae along the outer margin, inner margin medially curved, with two median sclerites present; cerci segmented, densely setose. Paratergites narrow and strap-shaped, with a bifurcated apex. Crosspiece relatively small, connected to the dorsal plate. Posterior lobes of valvifer II distinct, with a robust apex. First valvule large and slender, surface smooth, fused with the spermathecal plate. Spermathecal plate strongly sclerotized, medially constricted, curved downward, and apically bearing two small angular processes. Lateral lobe of basivalvula broad, roughly triangular, with differently curved inner and outer margins. Spermathecal duct short. Spermatheca tubular, apex swollen. Vestibular sclerite strongly sclerotized, with two median projections and a distinct depression. Subgenital plate without valvar; distal margin rounded and produced, and surface setose.

China • 1 female; Hunan Prov., Yongzhou City, Ningyuan County, Mt. Jiuyi Sanfenshi Scenic Spot; 5 June 2021; Jing Zhu leg; SWU-BB-CC-022066 • 1 female; Hunan Prov., Huaihua City, Yuanling County, collector unknown; SWU-BB-CC-022067.

China • 1 female, Hunan Prov., Huaihua City, Yuanling County, data unknown; SWU-BB-CC-022007 • 1 female, Hunan Prov., Yueyang City, 6 Jun, Liu & Wang (only surnames) leg; SWU-BB-CC-022008 • 1 female, Guizhou Prov., Tongren City, Jiangkou County, Mt. Fanjingshan, 12 July 1988, Shu-Yong Wang leg; SWU-BB-CC-022009 • 1 female, Guizhou Prov., Zhenyuan County, Tiexi, 25 May 2016, Yong-Shan Guo & Shu-Lin Yang leg; SWU-BB-CC-022010 • 1 female, Guizhou Prov., Yanhe County, Daheba, 450–700 m, 5–12 Jun 2007, Qiong-Zhang Song leg; SWU-BB-CC-022016.

Supra-anal plate yellowish brown, surface setose, posterior margin rounded. Paraprocts medially depressed. Two median sclerites present. Paratergites band-shaped. Laterosternite IX lamellar, attached to the crosspiece and paratergites. Posterior lobes of valvifer II distinct, apical portion slightly curved. First valve elongate, basal portion of third valve broad. First valvifer lamellate, with an oblique fold. Spermathecal plate with basal half subtrapezoidal and apical half subrectangular. Basivalvula narrow, symmetrical; lobes bulbous and expanded proximally. Spermathecal duct short. Spermatheca elongate, tubular, with both ends expanded (Liu et al. 2023: fig. S26H). Vestibular sclerite with margins poorly defined, median region bearing a large protrusion. Subgenital plate without valvar; posterior margin produced, and surface densely setose.

Hainan Prov., Ledong County, top of Mt. Jianfengling.

China • 1 female (Paratype); Guangxi Zhuang Autonomous Region, Chongzuo City, Daxin County, Shuolong Town; 20 May 2016; Yi-Zhou Liu leg; SWU-BB-CC-023002.

Supra-anal plate dark yellowish brown, covered with long setae, posterior margin roundly produced. Paraprocts medially depressed, with a slender, curved hook-like process. Two median sclerites present. Paratergites narrow and band-shaped, laterosternite IX attached to crosspiece and paratergites. Posterior lobes of valvifer II robust, apical portion slightly expanded with well-defined margins. Valves short, basal part of third valvule broad. First valvifer lamellate, attached to the spermathecal plate. Spermathecal plate with basal half sub-trapezoidal and the apical half sub-rectangular. Basivalvula narrow, with lobes unequal in size (left lobe narrower, right lobe slightly wider). Spermathecal duct short. Spermatheca elongate, tubular, with both ends expanded (Liu et al. 2023: fig. 4(9)). Vestibular sclerite with well-defined, undulate anterior and posterior margins, median region with two protrusions. Subgenital plate without valvar; posterior margin produced, and surface densely setose.

Guangxi Zhuang Autonomous Region, Guilin City, Yanshan, 200 m.

China • 1 female, 3 nymphs & 8 oothecae; Guangxi Zhuang Autonomous Region, Guilin City, around Ludiyan; 21 Aug. 2020; Lu Qiu leg; SWU-BB-CC-024002 to SWU-BB-CC-024005.

The female genitalia of this species are very similar to that of E. linglong, but the apices of the posterior lobes of valvifer II are less robust. Therefore, they are not redescribed here.