Encaumaptera aurora, Yakovlev & Zolotuhin, 2020

Yakovlev, Roman V. & Zolotuhin, Vadim V., 2020, Revision of the family Metarbelidae (Lepidoptera) of the Oriental Region. I. Introduction and genera Encaumaptera Hampson 1893, Orgyarbela gen. nov., and Hollowarbela gen. nov., Ecologica Montenegrina 38, pp. 84-101 : 91-92

Encaumaptera aurora sp. nov.

Figs 9−10 , 22

Material. Holotype: male, Thailand, Changwat Nan, 5 km N of Bo Luang , 1000 m, 4.ii.2000, leg. Hreblay & Szabó ( MWM, slide Genitalpräparat Heterocera Nr. 26.648) . Paratypes: 1 male, Thailand, Changwat Nan, 25 km N of Bo Luang , 1150 m, 29.iii.1998, leg. Tibor Csôváry & Pál Stéger ( MWM) ; 1 male, Thailand, Isthmus of Kra, Ranong [9°57′ N 98°38′ E], TV-station, 500 ms, Mitte April 2002, leg. loc. coll., ex coll. S. Loeffler ( RYB, slide RYB 2017 /6) .

Description. Length of fore wing 12−14 mm (holotype – 13 mm).Thorax covered with dark-brown scales, abdomen – with light-pink scales. Antenna pale brown, bipectinate along all length, crest processes about twice longer than antenna rod diameter in its medium third. Fore wing light-brown with poorly expressed pattern of darker blurred spots and thin orange rim along outer edge, fringe brown. Hind wing pink, without pattern, fringe light-brown.

Male genitalia. Uncus very robust, tapered, apically rounded, basally strongly sclerotized; tegumen massive, with wide leaf-like processes at gnathos arms bases; gnathos arms thick, relatively long; gnathos massive; valve narrow, slightly narrowing from base to apex, with small semi-oval cut on border between medium and distal third of costal edge, valve basally (on costal edge) with small narrow leaf-like processes, small triangle harpe on inner surface of valve at base of cut on costal edge, medium third of costal and abdominal edges strongly sclerotized, narrow sclerotized bridge from costal to abdominal edge of valve; juxta small, cup-like; saccus tiny; phallus thick, short, straight, slightly widening apically, with long longitudinal linear sclerite on abdominal surface and small paired linear-shaped cornuti on lateral surfaces of vesica.

Diagnosis.The new species differs from the other species of the genus in the pink scales on the abdomen, the bright pink hind wing and the phallus slightly widening to the apex.

Distribution. Thailand (Nan and Ranong Provinces).

Etimology. Aurora – Goddess of Dawn because of hind wings colored as rising Sun.

Figures

Figures 1−16. Adult specimens of Oriental Metarbelidae: 1. Indarbela tetraonis (Moore, 1879), male, S. India, Madurai, 18.vii.1985, leg. M. Eckrich (ZSM); 2. Indarbela tetraonis (Moore, 1879), female, S. India, Madurai, 2.vii.1985, leg. M. Eckrich (ZSM); 3. Squamicapilla arenata W. Schultze, 1908, male, the Philippines, E. Luzon, Aurora Prov., Sra Madre, 14 km S of Dilalongan, Dapalan river, 50 m, 16°02.709N / 121°42.667E, 11/12 Feb 2008, J.H. Lourens/K. Knoblich leg. (MWM); 4. Squamura maculata Heylaerts, 1890, male, Indonesia, East Java, Mt. Argopuro, 1200 m, 7−12.x.2004, leg. Jäkl (MWM); 5. Encaumaptera stigmata (Hampson, 1891), male, type (from Hampson 1891); 6. E. stigmata, male, Sri Lanka (Ceylon), Prov. Uva (Yala Nat. Park), Monaragalla/Gelge, 100 m, 29−30.v.1995, leg. Schnitzler (MWM); 7. E. stigmata, male, Sri Lanka (Ceylon), Prov. Uva (Yala Nat. Park), Monaragalla distr., Gelge, 100 m, 2−4.vi.1995, leg. Schnitzler (MWM); 8. E. devyatkini sp. nov., male, holotype (MWM); 9. E. aurora sp. nov., male, holotype (MWM); 10. E. aurora sp. nov., male, paratype, Thailand, Isthmus of Kra, Ranong [9°57′ N 98°38′ E], TV-station, 500 ms, Mitte April 2002, leg. loc. coll., ex coll. S. Loeffler (RYB); 11. Hollowarbela kinabalua (Holloway, 1976), male, holotype (from Holloway 1980); 12. H. kinabalua, male, Malaysia, Sabah, Trus Madi, 1100 m, 4−24.iv.2002, Martini leg. (MWM); 13. Orgyarbela millemaculata (Hampson, 1897), male, syntype (NHMUK); 14. O. millemaculata (Hampson, 1897), female, Khasis, May 1894 (NHMUK); 15. O. kerri sp. nov., male, holotype (NHMUK); 16. O. mackwoodi sp. nov., male, holotype (NHMUK). Scale bar 1 cm.

Figures 17−26. Male genitalia of Oriental Metarbelidae:17. Indarbela tetraonis (Moore, 1879), S. India, Madurai (slide ZSSM 2016/4 Coss); 18. Squamicapilla arenata W. Schultze, 1908, the Philippines, E. Luzon, Aurora Prov. (slide Genitalpräparat Heterocera MWM Nr. 27.981); 19. Squamura maculata Heylaerts, 1890, Indonesia, East Java (slide Genitalpräparat Heterocera MWM Nr. 27.983); 20. Encaumaptera stigmata (Hampson, 1891), Sri Lanka (Ceylon) (GenPr MWM: 26.649); 21. E. devyatkini sp. nov., holotype (Genitalpräparat Heterocera MWM Nr. 27.986); 22. E. aurora sp. nov., holotype (slide Genitalpräparat Heterocera MWM Nr. 26.648); 23. Orgyarbela millemaculata (Hampson, 1897), Khasis (slide NHMUK010315538); 24. O. kerri sp. nov., holotype (slide NHMUK 010315534); 25. O. mackwoodi sp. nov., holotype (slide NHMUK 010315536); 26. Hollowarbela kinabalua (Holloway, 1976), Malaysia, Sabah, Trus Madi (Genitalpräparat Heterocera MWM Nr. 28.047).