Squamosa monosa Wu & Pan

Pan, Zhaohui & Wu, Chunsheng, 2015, New and little known Limacodidae (Lepidoptera) from Xizang, China, Zootaxa 3999 (3), pp. 393-400 : 397

Squamosa monosa Wu & Pan , sp. nov.

( Figs. 3 , 9, 10 , 11)

Diagnosis. This new species is related to S. brevisunca Wu & Fang , but differs from the latter by the forewing with a deeper dent at R4 towards the base in the subterminal fascia and the black dot at middle of 1A being indistinct or absent. The gnathos of this new species is much shorter than that of the latter. The juxta of the new species has a single lateral process. The new species differs from S. chalcites Orhant and S. ocellata Moore by the short forks of the uncus and the shape of the juxta in the male genitalia.

Forewing length 18.0–21.0mm. Body pale yellowish brown. Head yellowish brown. Antenna and labial palpus yellowish brown. Thorax and anterior 2 segments of abdomen with a longitudinal row of hair tufts. Anal hair tuft black. Forewing pale yellowish brown mixed with fine black dots, lighter towards outer margin; on outside of cell, a lustrous rounded patch bluish black inside and reddish brown outside, crossed by a light transverse line; black dot at middle of 1A indistinct or absent; subterminal fascia fine, black, bearing a deep dent at R4 towards base. Hindwing yellowish brown to dark brown.

Male genitalia ( Figure 9 ). Uncus relatively longer than S. brevisunca Wu & Fang , apically with a pair of shorter forks; gnathos thick, much shorter than uncus, apex blunt; valva relatively narrow and long, tapering to a rounded apex; juxta large, only with a single lateral process, narrow and long; aedeagus thin and straight, with a small spine at end.

Female genitalia ( Figure 10 ). Ovipositor lobes flattened, foot-shaped; anterior apophysis short, about half length of posterior apophysis; posterior apophysis long and slender; vaginal plate large, densely with minute hairs; antrum broadly funnel-shaped; ductus bursae long, slightly spiraled; corpus bursae large, rounded; signum bisignate, with minute spines.

Holotype. ♂, Hanmi (2123m), Medog County, Xizang, 2013. VII.21, leg. Pan Zhaohui, gen. slideno.WU0332 (IZCAS).

Paratypes.1♀2 ♂♂, locality and collector same as holotype, 2013. VII.15-23, gen. slide no. WU0333 (IZCAS).

Distribution. Xizang (Medog).

Etymology. The name is derived from Greek “monos” (= single), corresponding to a single lateral process on the juxta.

Remarks. Prior to the present study the genus Squamosa Bethune-Baker contained four known species from New Guinea and Southern Asia. Although the female was described in Orhant (2000) for S. chalcites and the species S. ocellata is described based on the female, the female genitalia are described for the first time in the genus.

Figures

FIGURES 1 – 5. Adults. 1. Pseudohampsonella bayizhena Wu & Pan, sp. nov., male, holotype; 2. Pseudocaissa marvelosa (Yoshimoto), male; 3. Squamosa monosa Wu & Pan, sp. nov., male, holotype; 4. Scopelodes kwangtungensis Hering, male; 5. Miresa urga Hering, male

FIGURES 6 – 10. Genitalia. 6 - 7. Pseudohampsonella bayizhena Wu & Pan, sp. nov. (6. male, holotype, gen. slide no. WU 0331; 7. female, paratype, gen. slide no. WU 0330); 8. Pseudocaissa marvelosa (Yoshimoto), gen. slide no. L 007; 9 – 10. Squamosa monosa Wu & Pan, sp. nov. (9. male, holotype, gen. slide no. WU 0332; 10. female, paratype, gen. slide no. WU 0333)