Trichoboscis cultriformis Park & Wang, sp. nov.
Creators: name: Park, Kyu-Tek
name: Liu, Shurong
name: Heppner, John B.
name: Pathania, Sh. C.
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Trichoboscis
Trichoboscis cultriformis

description: Trichoboscis cultriformis Park & Wang, sp. nov.
(Figs. 8, 17, 23)
Type material. Holotype: ♂, CHINA: Chongqing: Wangxiangtai, Simianshan, 900 m, 18.vii.2012, coll. Yinghui Sun and Aihui Yin. Paratypes: CHINA: Chongqing: 3♂, 3♀, Tudiyan, Simianshan, 1200 m, 16–17.vi.2012, coll. Yinghui Sun and Aihui Yin; 2♂, Simianshan, 1200 m, 8.viii.2012, coll. Xiaofei Yang and Tengteng Liu; 1♂, Beipo, Jinfoshan, 1100 m, 7.viii.2012, Xiaofei Yang and Tengteng Liu; Fujian: 1♂, Sangang, Wuyishan, 740 m, 24.v.2004, coll. Haili Yu; Henan: 12♂, Tongbai, 300 m, 11.ix.2001, coll. Houhun Li and Karsholt; Hunan: 3♂, Cangxi, Xinhua, 9.viii.2004, coll. Yunli Xiao; Guizhou: 1♂, Huguosi, Fanjingshan, 1300 m, 3.viii.2001, coll. Houhun Li and Xinpu Wang; 1♂, Lianhuaping, Leigongshan, 1600 m, 18.ix.2005, coll. Jialiang Zhang; 1♂, Xiaodanjiang, Rongjiang, 680 m, 16.ix.2005, coll. Jialiang Zhang. Types are deposited in NKUM, China.
Diagnosis. This new species is similar to both of the preceding new species in superficial characters, with a slender 3rd segment of labial palpus in male. However, this species can be distinguished from them by the male genital characters: from T. phliuensis by the absence of a spine-like process on the ventral margin of the valva; and from T. multispina sp. nov. by having a knife-shaped cucullus with truncate apex, instead of a sickle-shaped cucullus with sharply pointed apex.
Description. Adult (Fig. 8) with wingspan 10.0–12.0 mm. Head yellowish brown, vertex and frons yellowish white. Antenna orange white; scape elongate, without pecten; flagellum with dark-brown annulations, notched at basal 1/ 5 in male. Labial palpus: male with 1st and 2nd segments whitish yellow, 2nd segment thickened toward apex, with long, shiny dark-brown scale tuft dorso-apically, length of scale tuft about 1/2 length of 2nd segment; 3rd segment dark brown all around, as long as 2nd segment, stout basally, then narrowed toward pointed apex, roughly scaled in basal 2/5 length dorsally; female with 2nd segment stout, appressedly scaled, grayish orange white all around; 3rd segment normally slender, scattered with dense dark-brown scales evenly. Proboscis with long yellowish white scales distally in male. Thorax and tegula dark brown. Forewing elongate, apex blunt, termen oblique; ground color gray, evenly covered with dense dark-brown scales; costa almost straight, dark brown in basal 3/5, orange white from 3/5 to before apex; two blackish brown discal stigmata nearly rounded: first stigma before middle of cell, second one at end of cell and extended to ventral margin before tornus; fringe blackish brown. Hindwing gray or deep gray; fringe concolorous. Legs yellowish brown, tibiae and tarsi with blackish brown bands, tibia of hind legs covered with long orange-white hairs.
Male genitalia (Fig. 17): Basal lobes of uncus heart-shaped, emarginate on posterior margin medially, roundly protruded at middle on anterior margin. Median process of gnathos broad at base, gradually narrowed to middle; distal half conspicuously tapering to tip, hooked ventrad. Costal bridge gently arched, nearly uniform throughout in width. Valva (Fig. 17 a) broad in basal 2/5, proximal width more than twice that of basal half of cucullus; ventral margin slightly concave before middle, roundly expanded at about 3/4, then deeply concave inward (indicated by an arrow in Fig. 17 a); cucullus nearly parallel-sided in basal half, distal half slender, more or less knife-shaped, apex truncate; sacculus relatively broad, about 1/3 length of valva, with broad expansion dorso-medially, slightly concave on dorsal margin before median expansion. Juxta large, shield-shaped, concave semicircularly on posterior margin medially, roundly protruded antero-medially; caudal lobes nipple-shaped, sclerotized along posterior margin, with rounded apex. Vinculum with broadly rounded anterior margin. Phallus (Fig. 17 b) stout, a little shorter than valva, parallel sided in basal 2/3, then strongly bent beyond, distal 1/4 gradually narrowed toward apex; cornuti consisting of 15–16 shorter aciculate spines medially, directed to dorsal surface, and a series of longer spines directed posteriorly beyond middle.
Female genitalia (Fig. 23): Abdominal segment VIII sclerotized, with nearly flat caudal margin; anterior margin with broad lateral lobes. Apophyses posteriores about 1.5 times length of apophyses anteriores. Antrum large, nearly rectangular, weakly sclerotized. Ductus bursae narrow in posterior 1/4, widened medially, shorter than corpus bursae, with sparse conic spines near conjunction with corpus bursae. Corpus bursae rounded, longitudinally rugose; signum nearly rounded, denticulate; accessory bursae arising laterally from middle of corpus bursae, narrower and shorter than corpus bursae; signum small, elliptical, located anteriorly, with dense denticles on surface.
Distribution. China (Chongqing, Guizhou, Henan, Hunan).
Etymology. The specific name of this species is derived from the Latin cultriformis (knife-shaped), referring to the shape of the distal half of the cucullus.
description: Published as part of Park, Kyu-Tek, Liu, Shurong, Heppner, John B., Pathania, Sh. C. & Wang, Shuxia, 2015, Review of the genus Trichoboscis Meyrick, with descriptions of three new species (Lepidoptera, Lecithoceridae), pp. 227-237 in Zootaxa 3986 (2) on pages 236-237, DOI: 10.11646/zootaxa.3986.2.6, http://zenodo.org/record/240015