Halolaguna flabellata, Teng, Kaijian, Liu, Shurong & Wang, Shuxia, 2014

Teng, Kaijian, Liu, Shurong & Wang, Shuxia, 2014, Taxonomic study of the genus Halolaguna Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of two new species, ZooKeys 464, pp. 99-110 : 102-104

Taxon classification Animalia Lepidoptera Lecithoceridae

Halolaguna flabellata sp. n. Figs 1b, 2b, 3b

Type material.

Holotype ♂, China: Jinxiu County (24°07'N, 110°11'E), Guangxi Zhuang Autonomous Region, 650 m, 28.iv.2008, leg. Hui Zhen and Li Zhang, genitalia slide No. TKJ13034. Paratype: 1 ♂, Hongqilinchang (21°54'N, 107°54'E), Shangsi County, Guangxi Zhuang Autonomous Region, 260 m, 2.iv.2002, leg. Shulian Hao and Huaijun Xue, venation slide No. ZYM06260W.

Diagnosis.

This species is similar to Halolaguna oncopteryx (Wu, 1994) superficially and in the male genitalia, but can be separated from the latter by the valva with a blunt apex lacking an apical spine, the juxta nearly rounded, and the apex-rounded aedeagus with two sclerotized figs. In Halolaguna oncopteryx , the apex of the valva has a strong apical spine, the juxta is nearly square, and the apex-pointed aedeagus has one sclerotized fig.

Description.

Adult (Figs 1b, 2b): Wingspans 16.0-16.5 mm. Head brown, pale yellow on frons and around eye. Antenna yellowish white, with scattered pale brown scales. Labial palpus yellowish white, with scattered pale brown scales; second segment dark brown on outer surface, with appressed scales; third segment slender, slightly longer than second, pointed terminally. Thorax yellowish white, with brown scales medially; tegula purple brown. Forewing with costal margin almost straight from basal 1/5 to 4/5; apex protruding triangularly; termen oblique, slightly concave below apex; ground color dark brown; subapical spot pale yellow, nearly triangular; discal and discocellular spots blackish brown, small, nearly rounded (somewhat worn); cilia blackish brown, yellowish white basally; venation: R3 and R4+5 stalked for basal 1/3 length, R4 and R5 stalked for 3/5 length, R5 reaching termen, M1 and R3+4+5 shortly stalked at base, M2 absent, M3 and CuA1+2 from lower angle of cell, CuA1 and CuA2 shortly stalked, cell closed. Hindwing and cilia gray, yellowish white basally; venation: Rs and M1 stalked for basal 2/5 length, M3 and CuA1 shortly stalked, remote from M2 basally, cell close. Legs yellowish white; fore leg with femur having grayish brown scales on ventral surface, tibia purple brown, tarsus mottled dark brown scales; mid leg with scattered dark brown scales; hind leg dark brown on distal half of femur, at base of tibia and on basal half of tarsus.

Male genitalia (Fig. 3b): Uncus broadened in fan shape basally, clubbed distally, bearing short setae laterally, rounded apically. Gnathos narrow, basal 1/3 nearly aequilate, median portion gradually narrowed, distal 1/3 sharply narrowed to pointed apex. Valva broad at base, slightly narrowed to middle, distal half obviously narrowed, slightly curved dorsad distally, narrowly rounded apically; costa concave medially. Sacculus broad at base, narrowed distally, reaching 1/4 length of dorsum. Juxta nearly rounded, convex antero-medially, slightly arched posteriorly; postero-lateral lobe short thumb-shaped, bearing setae apically. Vinculum narrow. Aedeagus straight, shorter than valva, broad at base, slightly narrowed to rounded apex, with numerous unequally sized toothlike thorns at base, with dense spinules and granular teeth ranging from about middle to distal 1/4, distal half with two sclerotized irregular figs, one of them with teeth.

Female: Unknown.

Distribution.

China (Guangxi).

Etymology.

The specific name of this species is derived from the Latin adjective flabellatus (flabellate), in reference to the basally fan-shaped uncus.