Orgyarbela millemaculata ( Hampson, 1897 ) 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 : 94

Orgyarbela millemaculata ( Hampson, 1897) comb.nov.

Figs 13−14 , 23

Arbela millemaculata Hampson, 1897: 286 .

Type locality: Khásis [Khasi Hills, Meghalaya, Eastern India] .

Type material: syntypes in BMNH .

Material examined. 1 male, 1 female, Khasis ( NHMUK, individual number 012832507; slide NHMUK 010315538 ) .

Re-description. Male. Length of fore wing 9−10 mm. Thorax and abdomen densely covered with brown scales, bunch of long dark-brown scales on tip of abdomen. Fore wing light-brown with very dense spotty pattern of dark-brown spots arranged in transverse rows, fringe mottled, dark at veins, light between veins. Hind wing brown, without pattern, fringe yellow unicolorous.

Male genitalia. Uncus very robust, strongly expended from base to apex, with small semicircular incision (for quarter of uncus length); tegumen robust; gnathos arms of medium length; gnathos small; valve short, poorly sclerotized, apex wide semicircular, costal edge smooth, abdominal edge strongly sclerotized, small cut in basal third of abdominal edge, small dentate harpe on abdominal edge (closer to apex); juxta cup-like; saccus tiny; phallus short, strongly bent along all length, apically slightly sharpened.

Female. Length of fore 13−14 mm. Thorax covered with dark- brown scales, abdomen – with bright orange scales, bunch of very long dark scales on tip of abdomen. Fore wing bright orange, with black large basal spot, wide band discally, more narrow band postdiscally, small black spots submarginally, marginally and between discal and postdiscal bands (in radial area)

Female genitalia not examined.

Diagnosis. The new species is externally closer to O. kerri , from which is differs in the smaller incision on the uncus, and in the harpe on the abdominal edge of the valve strongly moved to its apex.

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).