Striogyia acuta, Wu, 2020

Wu, Chunsheng, 2020, Four new species of Limacodidae from China (Lepidoptera: Zygaenoidea), Zoological Systematics 45 (4), pp. 316-320 : 319-320

Striogyia acuta sp. nov. ( Figs 4 , 8 )

Diagnosis. The new species is similar to S. obatera Wu, 2011 , but differ from the latter by the longer valva and the acute apex of the juxta in the male genitalia. The main external difference in external is that S. acuta does not have the discal spot found on the forewing of S. obatera . The 8th sternite is shorter than that of S. obatera . The juxtal apex of S. obatera is chimney-shaped.

Description. Male wing expanse about 20.0 mm. Forewing length about 9.0 mm. Labial palpus long, porrect, apex pointed. Body pale brown. Forewing pale yellowish brown; discal spot bar-shaped; postmedial line pale gray, straight. Hindwing pale brown.

Male genitalia. Eighth sternite concave in distal margin, bearing dense spines; tegumen sclerotized weakly; uncus and gnathos absent; valva long, arm-shaped, narrow near base; transtillae combined into one, bearing a pair of short lobes and a pair of long processes, which longer than half of valva-length; juxta ring-shaped, apically with a long angular process, apex pointed; aedeagus slender, longer than valva-length, densely with small spines in apical portion.

Female genitalia. Unknown.

Material examined. Holotype (♂). Shaanxi, Taibai , 1350 m, 1980.VII.13, Baolin Zhang leg. (gen. slide no. W10038, deposited in IZCAS).

Distribution. Shaanxi (Taibai).

Etymology. The specific name is derived from Latin “ acutus ” (= acute), corresponding to the acute apex of the juxta.

Funding This research was supported by the National Natural Science Foundation of China (31772489, 31750002).

Acknowledgements The author appreciates Dr. Alexey V. Solovyev (Dept. of Zoology, Ulyanovsk State Pedagogical

University , Russia) for providing help in our research. We also would like to thank Prof. Hengwen Luo (Institute of Tea, Yunnan Academy of Agricultural Science) for his providing the type specimens and the information on the biology and immature stages of Epsteinius luoi sp. nov .

Figures

Figures 1–4. Adults. 1. Epsteinius luoi sp. nov., paratype. 2. Aphendala mina sp. nov., holotype. 3. Aphendala notoseusa sp. nov., holotype. 4. Striogyia acuta sp. nov., holotype.

Figures 5–8. Male genitalia. 5. Epsteinius luoi sp. nov., holotype, gen. slide no. L06103. 6. Aphendala mina sp. nov., holotype, gen. slide no. L06185. 7. Aphendala notoseusa sp. nov., holotype, gen. slide no. W10067. 8. Striogyia acuta sp. nov., including 8th sternite, holotype, gen. slide no. W10038.