Aberrasine shiou ( Wu & Kishida, 2020 ) Volynkin, 2020

Volynkin, Anton V., 2020, Re-characterization of two Lithosiini species recently described from the island of Taiwan, with establishing of a new combination and the corrected checklist of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Ecologica Montenegrina 38, pp. 119-126 : 120-124

Aberrasine shiou ( Wu & Kishida, 2020) , comb. nov.

( Figs 1, 2 , 9 , 13 )

Ammatho shiou Wu & Kishida, 2020 , Japan Heterocerists’ Journal, 293: 452, figs 4, 5, 12, 17 (Type locality: “ Taiwan, Nantou Co., Meifeng , 2,100 m ”).

Material examined. TAIWAN: 2 males, Prov. Nantou, 15 km N of Puli, 500 m, 14–15.X.1996, leg. Gy. Fábián & F. Nemes , gen. slide No. : ZSM Arct. 2019-715 (prepared by Volynkin) ; 5 males, 1 female, Prov. Nantou, 5 km SW of Tayüling, 121'17''E 24'09''N, 2900 m, 21. V.1995, leg. M. Hreblay & P. Steger; 2 males, 1 female, Prov. Nantou, Tungpu, Yu-Shan Nat. Park , 1400 m, 24–25.IV.1997, leg. Gy. Fábián & S. T. Kovács ; 2 males, Prov. Nantou, 17 km E of Kuchsing, 121'00''E – 24'05''N, 560 m, Ursun Forest Camping, 6/7. VI.97, lg. C. Szaboky & I. Soos ; 2 males, Prov. Nantou, 3 km SW of Tsuifeng, 121'10''E – 24'06''N, 2100 m, 22. V.1995, leg. M. Hreblay & P. Steger; 2 males, 1 female, Prov. Nantou, 3 km SW of Tsuifeng, 2100 m, 11.X.1995, 121°10'E, 24°06'N, leg. Tibor Csővári & Pál Stéger ; 1 male, Prov. Nantou, 3 km E of Tili, 120'58''E – 23'47''N, 500 m, 17. III.1996, leg. T. Csovary & P. Steger ; 3 females, Prov. Nantou, 3 km S Hoshe, Yu Shan Nat. Park , 1400 m, 16.X.1996, leg. Gy. Fábián & F. Nemes , gen. slide No. : ZSM Arct. 2019-716 (prepared by Volynkin) ; 1 male, Prov. Nantou, 2100 m, 121'10''E – 24'06''N, 3 km SW of Tsuifeng, 5. VI.1997, leg. C. Szaboky & I. Soos; 14 males, 1 female, Prov. Kaohsiung, 15 km NE Taoyuan, 1850 m, 07. VII.1996, leg. G. Csorba & L. Németh; 1 male, 1 female, Prov. Kaohsiung, 26 km SE of Taoyüan, 120'52''E – 23'17''N, 1370 m, 19. III.1996, leg. M. Hreblay & P. Steger; 4 males, Prov. Hualien, 10 km NE of Tienchih, 121'20''E – 24'04''N, 2100 m, 23. V.1995, leg. M. Hreblay & P. Steger; 9 males, Prov. Hualien, 1400 m, Taroko National Park, at the Road 8, 2.IV.1997, leg. Csorba & Ronkay ; 7 males, Prov. Taitung, 5 km NW of Lirao, 120'59''E – 23'13''N, 1760 m, 28. V.1995, leg. M. Hreblay & P. Steger; 6 males, 3 females, Prov. Taitung, Anmashan , lower forest zone, 1650 m, 20. VI.1997, leg. B. Herczig & L. Ronkay; 1 female, Prov. Taitung, 350 m, 3 km W village Hungyeh, 30. VI.1997, 120'52''E, 22'28''N, lg. Csővary & Mikus; 1 male, Prov. Taitung, 2 km N Liyusan, 1760 m, 23.X.1996, leg. Gy. Fábián & L. Nemes ; 1 male, Prov. Taitung, Tahsuehshan Forest Recreation Area , 2000 m, 25. V.1997, leg. Gy. M. László & G. László; 1 male, Prov. Taichung, 17 km SW Lishan, Techi Vila , 1500 m, 26–27. V.1997, leg. Gy. M. László & G. László; 1 male, 1 female, Prov. Taoyuan, 14 km E of Fuhsing, 800 m, 28.X.1995 , 121'23'E, 24'50'N, lg. Csovary & Steger; 1 female, Prov. Taoyuan, Ming Chyr Forest Recreation Area , 1160 m, 17–18.IV.1997, leg. Gy. Fábián & S. T. Kovács ; 1 female, Prov. Taoyuan, Ming Chyr Forest Recreation Area , 1160 m, 05– 06.X.1996, leg. Gy. Fábián & F. Nemes (MWM/ ZSM).

Remarks. (1) In the original male genitalia illustration of A. shiou ( Wu & Kishida 2020: fig. 12), the authors erroneously provided a photo of the male genital capsule of Ammatho (Striatella) takamukui (Matsumura, 1927) (illustrated by Volynkin et al. 2019a: figs 188, 189) while the aedeagus illustrated belongs to A. shiou . For this reason, the species was originally described under the subgenus Striatella of the genus Ammatho . (2) For the purpose of a comparison with A. shiou, Wu & Kishida (2020 : fig. 13) illustrated the male genitalia of A. takamukui which, however, clearly belong to Ammatho (Striatella) karenkensis (Matsumura, 1930) (illustrated by Volynkin et al. 2019a: figs 194, 195) and not A. takamukui .

Diagnosis. Aberrasine shiou is very similar externally to the form of A. aberrans lacking a discal spot of the forewing, but can be distinguished by its markedly less curved posterior part of the medial transverse fascia and the somewhat shorter subterminal area of the forewing. The male genitalia of A. shiou are very similar to those of A. expressa ( Figs 3, 4 , 10 , 14 ) which is easily separable externally by its smaller size and dissimilar forewing markings. Compared to that of A. expressa , the male genital capsule of A. shiou has the somewhat thicker uncus, the slightly shorter vinculum, the broader valva with the more convex costa, the larger distal costal process directed rather dorsally (whereas it is smaller and directed distally in A. expressa ), and the more robust distal saccular process. The vesica configuration of A. expressa is unknown, but the smaller cluster of spines is wider and the elongate cluster of spines is conspicuously longer in A. shiou . The female genitalia of A. shiou differ from those of A. expressa by the longer apophyses anteriores, the shorter and narrower ductus bursae, the shorter corpus bursae with the spinulose posterior section (it is evenly weakly sclerotized and lacking spinules in A. expressa ), and the somewhat longer appendix bursae more densely covered in larger spinules.

Distribution. The species is endemic to Taiwan Island.

Figures

Figures 1–8. Aberrasine spp.: adults. Depositories of the specimens: 1, 2, 5 and 6 in MWM/ZSM; 3, 4, 7 and 8 in NHMUK (©).

Figures 9–12. Aberrasine spp.: male genitalia. Depositories of the specimens: 9 and 11 in MWM/ZSM; 10 and 12 in NHMUK (©).

Figures 13–16. Aberrasine spp.: female genitalia. Depositories of the specimens: 13 and 15 in MWM/ZSM; 14 and 16 in NHMUK (©).