Toxoides sichuanensis, Zhuang, Hailing, Owada, Mamoru & Wang, Min, 2014

Zhuang, Hailing, Owada, Mamoru & Wang, Min, 2014, A new species of the genus Toxoides Hampson, 1893 (Lepidoptera: Thyatiridae) from China, Zootaxa 3860 (5), pp. 498-500 : 498-500

Toxoides sichuanensis sp. n.

Type material. Holotype male, China, Sichuan, Dongla Mountain, 1733 m, 18 June, 2012, leg. WANG Houshuai and DENG Xiaohua. Paratypes: 1 male, same data as the holotype; 1 male, China, Sichuan, Gongga Mountain, 2000 m, 02 August, 2010, leg. WANG Min, Slide No.zhl25.

Diagnosis. External appearance of the new species, Toxoides sichuanensis , resembles mostly to the type species, T. undulatus , but this new species is clearly distinguished from the latter by the clear forewing ground pattern, distinct orbicular and reniform stigmata. The male genitalia of the two species differ in several details: in the new species, uncus is slender, socii are just slightly curved and without densely hairy basal parts, fine pointed triangular saccular process is reduced, and just its rudiment can be seen on the left valva as a minute peak. Valva has an acute process, costal margins are slightly uneven, sacculus is always straight, the shape of fultura superior is broader in the middle section and the carinal hook is basally more robust and more curved; while in the type species, socii have broader base and is hairy, a distinctly fine pointed triangular process is present on sacculus, valva is knife-shaped.

Description. Male ( Fig 2 a): Medium-sized, wingspan 43–46 mm, length of forewing 20–21 mm. Head short, eyes naked, frons grayish-white, palpi protract, collar brown. Antenna longly filiform (laterally lamellate). Metathorax with dark gray long hairs. Forewing relatively narrow, usually brown with irregular and unevenly pattern, apex less pointed, with distinct dark brown apical macula, costa convex. Median area with clearly small orbicular and narrow reniform stigmata, darker brown in the upper half of median area, the lower distinctly silvery white. Antemedial area, antemedial and postmedial line more or less reddish area or reddish stripe. Female: Unknown.

Male genitalia ( Fig 2 b): The typical features slender, uncus long, slightly curved, socii near uncus and ca 3/4 times as long as it, originating from the tapered top of tegumen. Tegumen sample and slender. Fultura superior without specific features. Valva long, narrow, acute process, costal margin uneven, ventral margins always straight, both of them slightly sclerotized. Fultura inferior with large, densely setose, triangular lobes. Aedeagus medium-long, thick, carinal hook short, vesica with a large field made up of prickle-like removable substance.

Distribution. China (Sichuan).

Etymology. The specific epithet is derived from the type locality.

Figures

FIGURE 2. Male adult and genitalia of Toxoides sichuanensis sp. n., holotype, a. male adult, b. male genitalia.