Head distinctly narrower than prothorax, frons with a narrow, median furrow extending from base of clypeus up to apical margin of pronotum; eyes coarsely faceted, lower lobes of eyes distinctly far away from each other and longer than genae; antennae slender, distinctly longer than body, scape strongly expanded before apex, pedicle distinctly longer than broad. Pronotum transverse, with a tubercle on each side, punctured, with a pair of subuliform tubercles at sides of middle; prosternal process broad, with a longitudinal depression in middle, procoxal cavities closed posteriorly. Scutellum linguiform. Elytra covered with black or brown spots and a series of black or brown spots along suture; disc elongate, distinctly broader than pronotum at base, gradually narrow from near apical third, punctured, with a pair of tubercles at base and near scutellum, with a pair of bumps behind the tubercles; humeral angles rounded and slightly processed forward. Mesocoxal cavities closed externally to mesepimera. Femora strongly clavate.

Trichohoplorana is very similar to Neacanista Gressitt, 1940 in having the pronotum with a tubercle at each side, with a pair of tubercles at the sides of the middle, the elytra with a pair of tubercles at the base and near the scutellum, with a pair of bumps behind the tubercles, and a strongly clavate femora. However, Trichohoplorana differs from Neacanista in having the antennal scape strongly expanded before the apex (gradually thickened before the apex in Neacanista) and the pedicle distinctly longer than broad (broader than long in Neacanista).

Bhutan, China, India, Laos, Nepal, Vietnam (new country record).

Breuning (1982) established Mimipochira for M. sikkimensis Breuning, 1982, but this genus was a junior homonym of Mimipochira Breuning, 1956. Hence, Sama and Sudre (2009) introduced the new name Ipochiromima. After comparing photographs of the holotypes of T. dureli Breuning, 1961 (Fig. 1A) and M. sikkimensis (Fig. 1B, C), we consider these two species as belonging to the same genus, based on above redescribed characters. Thus, we treat Ipochiromima as a junior synonym of Trichohoplorana.

Figure 1. 

Types of Trichohoplorana spp. A Trichohoplorana dureli, holotype, male habitus, dorsal view (photo by Andreas Weigel) B–D Mimipochira sikkimensis B holotype, male habitus, dorsal view C holotype, male habitus, lateral view D labels (photos by Xavier Gouverneur) E Trichohoplorana juglandis, holotype, male habitus, dorsal view (photo reproduced from Holzschuh 1989) F Trichohoplorana mutica, holotype, male habitus, dorsal view (photo reproduced from Holzschuh 1990) G, H Trichohoplorana tenuipes G holotype, male habitus, dorsal view H paratype, female habitus, dorsal view (photos provided by Holzschuh) I, J Acanthocinus shirakii: I holotype, male habitus, dorsal view J labels (photos reproduced from Huang et al. 2015).

Trichohoplorana dureli Breuning, 1961: holotype, ♂ (MNHN), Pedong, Sikkim, India, 1914, L. Durel leg., [examined from a photograph (Fig. 1A)]; Mimipochira sikkimensis Breuning, 1982: holotype, ♂ (MNHN), Sikkim, India [examined from three photographs (Fig. 1B–D)].

Bhutan, India (Sikkim).

The differences between T. dureli and I. sikkimensis (Fig. 1A–C) mainly reflect in the shape of the elytral brown spots: the large spots near elytral middle, at apical third, and at apex. They are actually intraspecific differences; thus, we treat I. sikkimensis as a junior synonym of T. dureli.

Bhutan (Thimphu), India (Arunachal Pradesh).

Nepal (Nawakot).

Holotype , ♂ (CHS), Bhalukhop, district of Taplejung, East Nepal, alt. 3000m, 11–21.V.2013, Emil Kučera leg., [examined from a photograph (Fig. 1G)]; paratype, 1 ♀ (CHS), data same as holotype, [examined from a photograph (Fig. 1H)].

Nepal (Taplejung).

China (Taiwan).

Holotype , ♂ (CXG), Ban Saleui, Massif du Mont Phou Pan, Houa Phan Province, Northeast Laos, alt. 1300–1900m, 1.V.2012, local collector leg., [examined from two photographs (Fig. 2A, B)]; paratype, 1 ♀ (CXG), data same as holotype, but 2.V.2014 [examined from a photograph (Fig. 4A)].

Figure 2. 

Trichohoplorana luteomaculata, males A, B holotype habitus A dorsal view B lateral view (photos by Xavier Gouverneur) C–G material from Hainan, China C habitus, dorsal view D habitus, lateral view E habitus, ventral view F head, frontal view G right hind wing, dorsal view. Abbreviations: A: anal, Cu: cubital, MP: medial posterior, MS: medial spur, ?: a vein of uncertain homology (either a crossvein or base of MP₃₊₄ vein). Scale bars: 5 mm (a); 1 mm (b).

Figure 3. 

Male terminalia of Trichohoplorana luteomaculata from Hainan, China A tergite VIII, dorsal view B sternite VIII, verntral view C spiculum gastrale, dorsal view D–F tegmen D dorsal view E ventral view F lateral view G–J penis G dorsal view H dorsal view I ventral view J lateral view. Not to scale.

Figure 4. 

Trichohoplorana luteomaculata, females A paratype habitus, dorsal view (photo by Xavier Gouverneur) B–F material from Hainan, China B habitus, dorsal view C habitus, lateral view D habitus, ventral view E head, frontal view F right hind wing, dorsal view. Abbreviations: A: anal, Cu: cubital, MP: medial posterior, MS: medial spur, ?: a vein of uncertain homology (either a crossvein or base of MP₃₊₄ vein). Scale bars: 5 mm (a), 1 mm (b).

China: 1 ♀ (SYSU), Suoli village, Tongdao County, Huaihua City, Hunan Province, V.1981, Li-Jun Zhang leg.; 1♂1♀ (CDSL, figs 2C–G, 3, 4B–F), Jianfengling National Natural Reserve, Hainan Province, 7.VI.2021, 18°42'34.75"N, 108°52'34.50"E, alt. 954 m, Dong-Shuo Liu leg., collected by light trap (Fig. 5); Vietnam: 1 ♀ (LPSNU), Yen Bai Province, August 2020, local collector leg.; 1 ♀ (CWW), Gem. Ta Pin, Kreis Sapa, Lao Cai Province,22°22.196'N, 103°48.701'E, alt. 2318 m, 26.VI–01.VII.2017, N.H. Binh leg., [examined from a photograph provided by Andreas Weigel].

Figure 5. 

Scene showing collecting Trichohoplorana luteomaculata by light trap from Hainan, China (photos by Dong-Shuo Liu).

Male (Figs 2C–G, 3). Hind wings (Fig. 2G) with AA₃₊₄ vein bifurcate near apical third; AA₄ vein and AA₃ vein closed to each other apically and not extending to margin; AA₃ vein connected with Cu vein near apical third; CuA₂ vein connected with MP₃₊₄ vein near basal third of MP₃₊₄ vein and not extending to margin; MP₃₊₄ vein bifurcate near middle; MP₄ vein, MP₃ vein and MS vein not extending to margin; a short and vague uncertain vein (?, either a crossvein or base of MP₃₊₄ vein) located between Cu vein and MP₁₊₂ vein.

Male terminalia. Tergite VIII (Fig. 3A) sparsely covered with short brown setae apically and at sides of apical third, nearly truncated at apex. Sternite VIII (Fig. 3B) anchor-shaped, sparsely covered with short brown setae at apical sides, apical margin slightly depressed; spiculum relictum distinctly longer than sternite VIII. Stem of spiculum gastrale more than 2.0 times as long as branches and curved towards dorsum at base (Fig. 3C). Parameres of tegmen sparsely covered with short brown setae on apical third and several long setae near apical fifth; each paramere gradually constricted from base to apex, but external margin slightly expanded near apex; apex of both parameres rounded and closed together; phallobase nearly 3.0 times as long as parameres and processed outward near middle; anterior tegminal strut curved outward (Fig. 3D–F). Penis curved towards venter, ventral plate distinctly longer and broader than dorsal plate and slightly sharp at apex; dorsal plate widely rounded at apex; apex of dorsal struts obliquely truncated (Fig. 3G–J).

Female (Fig. 4B–F). Hind wings (Fig. 4F) with AA₃₊₄ vein bifurcate near apical third; AA₄ vein and AA₃ vein fused apically and not extending to margin; AA₃ vein connected with Cu vein near apical third; CuA₂ vein connected with MP₃₊₄ vein near basal fifth of MP₃₊₄ vein and not extending to margin; MP₃₊₄ vein bifurcate near middle, MP₄ vein, MP₃ vein and MS vein not extending to margin; a short uncertain vein (?, either a crossvein or base of MP₃₊₄ vein) located between Cu vein and MP₁₊₂ vein.

China (Hainan, Hunan), Laos (Houa Phan), Vietnam (Lao Cai, Yen Bai).

Holotype , ♀ (LPSNU), Yen Bai Province, Vietnam, V.2019, local collector leg.

Female, holotype. Body length: 14.0 mm, humeral width: 5.2 mm. Body black, antennal scape (except for outside of apex), pedicel, antennomeres III (except for apex), IV (except for apex), V (basal half), VI (basal half), elytra (apical half), protibiae (basal half), mesofemora (basal half), mesotibiae (basal half), metafemora (most of parts) and metatibiae (basal half) reddish brown; claws yellowish brown (Fig. 6A–C).

Figure 6. 

Trichohoplorana nigeralba, holotype, female A habitus, dorsal view B habitus, lateral view C habitus, ventral view D head, frontal view E right hind wing, dorsal view. Abbreviations: A: anal, Cu: cubital, MP: medial posterior, MS: medial spur, ?₁: a vein of uncertain homology (either a crossvein or base of MP₃₊₄ vein), ?₂: an uncertain vein. Scale bars: 5 mm (a), 2 mm (b).

Frons (Fig. 6D) densely covered with short yellow and white hairs. Vertex densely covered with short white hairs on middle and short yellow hairs on center (Fig. 6A). Antennae sparsely covered with sub-erect, short, white setae; scape sparsely covered with short, brown setae; pedicel sparsely covered with short, brown setae, with several short, white setae at internal side of apex; antennomere III sparsely covered with short, white setae basally, other parts densely with short, brown setae; antennomeres IV–XI densely covered with short white setae on the basal half and densely with short, brown setae on the apical half; antennomeres III–VII fringed with several long, black setae ventrally; antennomeres VIII–X fringed with one or two long, black setae ventrally; antennae 1.5 times as long as body, length (mm) of each antennomere: scape = 2.7, pedicel= 0.8, III = 3.0, IV= 3.0, V = 2.2, VI = 2.0, VII = 1.7, VIII = 1.6, IX = 1.6, X = 1.5, X I = 1.3; antennomeres III and IV curved inward (Fig. 6A–C). Pronotum (Fig. 6A) covered with three yellow haired bands: two located at sides and starting from near anterior margin to posterior margin, one located in middle and starting from anterior margin to posterior margin; disc with a pair of subtriangular, yellow haired spots located at sides of middle; near anterior of pronotum distinctly expanded outward, pronotum densely punctured (except for apex and base), base of the subuliform tubercles on pronotum expanded forward. Prosternum (sides) and propleuron (venter) sparsely covered with short, yellow hairs (Fig. 6B, C). Scutellum (Fig. 6A) sparsely covered with short black hairs, densely covered with yellow hairs at apex, depressed in middle of apical margin. Elytra (Fig. 6A, B) sparsely covered with short black hairs on the basal half, a short yellow haired band at lateral margins of base, several yellow haired spots arranging into an longitudinal line starting from near posterior humeral angle to basal third, a yellow haired spot located behind the bumps, and several yellow spots along suture from basal fourth to middle; the tubercles at elytral base and near scutellum, and the bumps behind the tubercles densely covered with short, black setae; apical half of each elytron densely covered with short white hairs and four longitudinal yellow haired bands (first band located at lateral margin, second and third bands located in middle and fused at apical half, forth band located near suture); disc 1.9 times as long as wide at base, rounded apically, moderately covered with dense coarse punctures at basal half. Mesosternum, mesepisternum, and mesepimeron sparsely covered with short, yellow hairs; metasternum, metepisternum, and metepimeron densely covered with short, yellow hairs (Fig. 6C). Femora sparsely covered with short white setae and several suberect, long, white setae at external side; tibiae covered with extremely sparse, suberect, long, white setae, sparsely with short, thin, black setae on the basal third, densely with short, white setae in middle, and densely with short, thick, black setae on the apical third; tarsomere I–III (except for venter) densely covered with short white and sparsely suberect, long, white setae dorsally, tarsomere V (except for venter) sparsely covered with short, white setae at basal half and short, black setae on the apical half, with more sparse long black setae at apex (Fig. 6A–C). Abdominal ventrites I–V densely covered with short, yellow hairs, the hairs more dense at apices of ventrites I–IV; apex and sides of ventrite V sparsely covered with long, yellow pubescences (Fig. 6C).

Hind wings (Fig. 6E) with AA₃₊₄ vein not bifurcate, AA₄ vein missed, AA₃ vein connected with Cu vein near apical 1/3 and not extending to margin; CuA₂ vein connected with MP₃₊₄ vein near basal 1/3 of MP₃₊₄ vein and not extending to margin; MP₃₊₄ vein bifurcate near apical 1/3, some parts of base of MP₃₊₄ vein missed, a short and vague uncertain vein (?₁, either a crossvein or base of MP₃₊₄ vein) connected with base of MP₃₊₄ vein; MP₄ vein, MP₃ vein and MS vein not extending to margin; a short uncertain vein (?₂) located between MP₄ vein and MP₃ vein, not extending to margin. Abdominal ventrite V raised at apical sides and truncated apically (Fig. 6C).

Male. Unknown.

The specific epithet of this new species is derived from the Latin words “niger” and “albus” referring to most of parts of elytral basal half sparsely covered with short, black hairs and most of parts of elytral apical half densely with short, white hairs.

Vietnam (Yen Bai).

This new species can be distinctly distinguished from other species of Trichohoplorana by its peculiar elytral pattern (Fig. 6A).

When the senior author received the holotype of this new species, the right antennomere XI was missing and the elytral apex was broken. Then, the head, left antennomere XI, and prothorax were separated from the body due to his carelessness, and he correspondingly glued to the body the separated portions with white emulsoid. Consequently, some hairs on the antennae, elytra, metaventrite, and legs were worn so that some characters are unclear.