Ressia quercidentella Sinev, 1988

Zhang, Di & Li, Houhun, 2023, Review of the genus Ressia Sinev, 1988 (Lepidoptera: Cosmopterigidae), with descriptions of four new species from China, Zootaxa 5360 (4), pp. 583-592 : 588-589

Ressia quercidentella Sinev, 1988

( Figs 6 , 12 , 17 )

Ressia quercidentella Sinev, 1988: 114 ; Zhang & Li, 2010: 187. TL: Russia (Primorsky Krai). TD: ZIN.

Material examined. CHINA, Jilin: 2♁, Dapanling, Banshi Town , Hunchun County (42.70°N, 130.38°E), 180 m, 1.VII.2023, leg. D Zhang, slide No. ZD 21691 ; 1♁, Yangpao Farm , Hunchun County (42.89°N, 130.57°E), 162 m, 30. VI.2023, leg. D Zhang, slide No. ZD 21692 ; Liaoning: 3♁ 4♀, Mt Qian, Anshan City , 7.VII.2010, leg. JY Liu & YP Cai, slide Nos. ZD 21579♁, ZD21580 ♀ ; Shanxi: 3♁, Manghe , Yangcheng County, 594 m, 17.VII.2012, leg. W Guan & XC Wang, slide No. ZD 21160 ; Zhejiang: 2♁ 3♀, Daishan Island, Zhoushan City (30.23°N, 122.20°E), 21 m, 5.VIII.2016, leg. QY Wang et al., slide Nos. ZD 21573♁, ZD21578 ♀ .

Diagnosis. Adult ( Fig. 6 ). Wingspan 10.0– 11.5 mm. Ressia quercidentella is diagnosed by the furcate process of the eighth tergum slightly broadened distally, the left dorso- and ventroapical processes of the asymmetrical pleural lobes of the eighth segment larger and longer than the right apical processes; the cucullus boot-shaped in the male genitalia ( Fig. 12 ); and the large ring-shaped sterigma with a small sclerotized ring-shaped process at left side in the female genitalia ( Fig. 17 ).

Distribution. China (Henan, Jilin, Liaoning, Shanxi, Tianjin, Zhejiang), Korea, Russia (Far East).

Figures

FIGURES 3‒8. Adults (all males) of Ressia spp. 3. R. auriculata; 4. R. disparilis sp. nov., holotype; 5. R. forcipata sp. nov., holotype; 6. R. quercidentella; 7. R. semilunata sp. nov., holotype; 8. R. sinevi sp. nov., holotype. Scales = 2.0 mm.

FIGURES 9‒14. Structure of 8th abdominal segment and male genitalia of Ressia spp. 9. R. auriculata, slide No. ZD21583; 10. R. disparilis sp. nov., holotype, slide No. ZD21076; 11. R. forcipata sp. nov., holotype, slide No. ZD21568; 12. R.quercidentella, slide No. ZD21160; 13. R. semilunata sp. nov., holotype, slide No. ZD21571; 14. R. sinevi sp. nov., holotype, slide No. ZD21576 (9a–14a, furcate process of eighth tergum). Scales = 0.5 mm (9a–14a = 0.2 mm).

FIGURES 15‒19. Female genitalia of Ressia spp. 15. R. auriculata, paratype, slide No. ZZW08911; 16. R. disparilis sp. nov., paratype, slide No. ZD21584; 17. R. quercidentella, slide No. ZD21578; 18. R. semilunata sp. nov., paratype, slide No. ZD21582; 19. R. sinevi sp. nov., paratype, slide No. ZD21585. Scales = 0.5 mm.