Thecobathra longisaccata, Fan, Ximei, Jin, Qing & Li, Houhun, 2008

Fan, Ximei, Jin, Qing & Li, Houhun, 2008, Seven new species and a checklist of the genus Thecobathra Meyrick from China (Lepidoptera: Yponomeutidae), Zootaxa 1821, pp. 13-24 : 17-18

publication ID

https://doi.org/ 10.5281/zenodo.183025

DOI

https://doi.org/10.5281/zenodo.6229014

persistent identifier

https://treatment.plazi.org/id/03E58786-FFBB-763C-FF67-5A29FDEFDA44

treatment provided by

Plazi

scientific name

Thecobathra longisaccata
status

sp. nov.

Thecobathra longisaccata View in CoL sp. nov.

( Figs. 3 View FIGURES 1 – 7 , 10 View FIGURES 8 – 11 )

Type material. Holotype: ɗ, CHINA: Ruili [24°00'N, 97°50'E], Yunnan Province, 1000 m, 6.viii.2005, coll. Yingdang Ren, genitalia slide no. FXM06051.

Diagnosis. The new species can be recognized by the large triangular male valva, an apically rounded large projection near the base of the costa, and the length of the saccus, which exceeds the phallus.

Description. Adult ( Fig. 3 View FIGURES 1 – 7 ): Wing expanse 16.0 mm. Head white, with sparse scales. Antenna with scape white, flagellum white and pale brown alternately. Labial palpus with basal and second segments white, third segment pale brown mixed with white. Thorax and tegula white. Forewing silvery white, somewhat pale yellowish; costal margin with basal 1/8 black, distal half pale yellow; cilia brownish yellow except distal 1/4 black. Hindwing silvery white, tinged with yellowish brown distally; cilia white. Legs white; hind tibia with a yellowish brown dot at end of each side, hind tarsus pale yellow except black at apex.

Male genitalia ( Fig. 10 View FIGURES 8 – 11 ): Socius slender, horn shaped, arched on dorsal edge, with a sclerotized tooth apically. Tuba analis membranous. Ventral plate of gnathos large and heart-shaped, blunt and sclerotized apically. Valva subtriangular; uprising, forming a broad right angle ventrally; basal 1/3 broad, almost naked; distal 2/3 triangular, densely setose, oblique on outer margin, pointed at apex; costa curved at middle, with an apically rounded projection basally. Sacculus narrow, indistinct. Saccus long, Y-shaped, anterior 1/3 gradually narrowed, curved distally, rounded at apex. Phallus slender and straight, shorter than saccus, with a row of curved dentation ranging from basal 1/5 to apex.

Female: Unknown.

Distribution. China (Yunnan).

Etymology. The specific name is derived from the Latin prefix longi-, and saccatus, referring to the saccus, which is longer than the phallus.

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