Nyctemera (Dondera) alba ( Moore, 1877 ) Dubatolov & Volynkin, 2017

Dubatolov, Vladimir V. & Volynkin, Anton V., 2017, On the systematic position of the genera Paraplastis Hampson, Migoplastis Felder and Dondera Moore (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4358 (2) : -

Nyctemera (Dondera) alba ( Moore, 1877) , comb. nov.

( Figs. 7–10 , 15 , 19 )

Dondera alba Moore, 1877: 344 ; Hampson, 1893: 79, pl. 157, fig. 25. Type locality: “ Ceylon ” [Pundaloya] ( Hampson, 1901). Migoplastis alba, Hampson, 1894: 45 ; Hampson, 1901: 506 –507, fig. 226; Rothschild, 1914: 263, fig. 25g; Strand, 1919: 378 – 379.

Type material examined. Syntypes: 1 ♂, "Pundaloya Ceylon " / " Dondera alba Moore. Type ♂ Hmpsn. " / " Coll. Green 91.-26." / " Type " / label with QR-code " NHMUK010606070 " (Coll. NHM) ; 1 ♂, " Ceylon " / " Dondera alba, Moore (type)" / " Type " / " Moore Coll. 94-106." / label with QR-code " NHMUK010606071 " (Coll. NHM) .

Other material examined. SRI LANKA: 1 ♂ , Uva 3500 ft, Ceylon, November , ex Coll. G.C. Alston, No NHMUK010606032 , slide NHMUK10313515 Volynkin (♂) (Coll. NHM); 1 ♀, Maskeliya , Ceylon, June , ex coll. G. C. Alston, No NHMUK010606033 , slide NHMUK10313516 Volynkin (♀) (Coll. NHM); 1 ♂, Diyatalawa Camp, 4200 ft . Ceylon ( Findiay ), March [19]02, Rothschild Bequest B.M. I 939-I., 251, No NHMUK010606072 ( Coll. NHM); 1 ♀, Pundaloya, Coll. Green, 91-26, No NHMUK010606073 (Coll. NHM); 1 ♀, Candy, 11.IX (Coll. NHM); 1 ♀, Haldamulla, V. III. (Coll. NHM); 1 ♂, Kalupahani valley, 5000 ft . , II.1902 ( Coll. NHM); 1 ♀, Maskeleya (Coll. NHM); 1 ♀, Pundubaja , Ceylon, Green [leg.] (Coll. NHM); 1 ♀, Kandy, 7.III. (Coll. NHM); 1 ♀ , Ceylon, Rothschild Bequest B.M. I 939-I. ( Coll. NHM).

Diagnosis. Adults ( Figs. 7–10 ). Antennae bipectinate in both sexes, but branches in females shorter. Head with black spot on occiput. Patagiae and tegulae with black spots; thorax with two black spots at fore edge and one spot at hind edge. Wings white, only costal edge brown; male hind wings with external margin concave between tornal angle and medial veins. Abdomen yellow, each segment with wide black transversal bands. Male genitalia ( Fig. 15 ). Uncus heavily hook-like, valvae oval convex-concave, with strong and wide costal process, narrower at base, the widest at basal part, constricting and rounded at apex; aedeagus short, curved, apically broadened; vesica consists of elongate and apically narrowed, diverticulum with one short conical subdiverticulum medio-dorsally; ductus ejaculatorius situated subbasally. Female genitalia ( Fig. 19 ). Ovipositor short, conical. Apophyses long and thin, apophyses anteriores shorter and broader than apophyses posteriores. Antrum weakly sclerotized, broad; ductus bursae short, membranous; corpus bursae long, pear-like, with one small round signum in its medial section.

Distribution. Sri Lanka.

Figures

FIGURES 7–12. Nyctemera spp.: adults. 7, N. alba, syntype ♂, [Sri Lanka] Pundaloya, Ceylon (©NHM); 8, N. alba, ♂, [Sri Lanka] Ceylon, Diyatalawa (©NHM); 9, N. alba, syntype ♀, [Sri Lanka] Ceylon (©NHM); 10, N. alba, ♀, [Sri Lanka] Pundaloya (©NHM); 11, N.arctata, ♂, China, Yunnan (MWM/ZSM); 12, N.arctata, ♀, China, Yunnan (MWM/ZSM).

FIGURES 13–15. Nyctemera spp.: male genitalia.13, N. hampsoni, S India, slide MWM 31693 Volynkin; 14, N. correcta, Sri Lanka, slide NHMUK010313517 Volynkin (©NHM); 15, N.alba, Sri Lanka, slide NHMUK010313515 Volynkin (©NHM).

FIGURES 16–20. Nyctemera spp.: male (16) and female (17–20) genitalia. 16, N. arctata, China, Yunnan, slide ZSM 156/ 2017 Volynkin; 17, N. hampsoni, S India, slide NHMUK010313519 Volynkin (©NHM); 18, N. correcta, Sri Lanka, slide NHMUK010313518 Volynkin (©NHM); 19, N. alba, Sri Lanka, slide NHMUK010313516 Volynkin (©NHM); 20, N.arctata, China, Yunnan, slide ZSM 157/2017 Volynkin.