Dubatoloviana Bucsek, 2012

Volynkin, Anton V., 2021, Taxonomic review of the genus Dubatoloviana Bucsek with description of a new species from Northeast India (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Ecologica Montenegrina 47, pp. 43-49 : 44

Genus Dubatoloviana Bucsek, 2012

Dubatoloviana Bucsek, 2012 , Erebidae , Arctiinae of Malay Peninsula – Malaysia: 124 (Type species: “ Eilema ” trimacula Holloway, 2001 , by the original designation).

Diagnosis. Species of the genus display a substantial sexual dimorphism similar to that of the genus Brunia Moore, 1878 (illustrated by Holloway (2001) and Bucsek (2017)) with females having a fuscous forewing with yellow costal and outer areas. However, compared to Brunia , males of Dubatoloviana have two cellular spots (absent in Brunia ) and a more convex anal margin of the forewing. The male genital capsule of Dubatoloviana differs from that of Brunia (illustrated by Holloway (2001) and Bucsek (2017)) in the longer and thicker uncus and the heavily sclerotised and apically pointed dorsal section of the valva whereas in Brunia it is apically rounded and membranous. The phallus of Dubatoloviana is tubular, relatively narrow and evenly sclerotised whereas the phallus of Brunia is markedly wider, dilated distally with a longitudinally rugose and expandable scobinated apical section (a feature characteristic for the genus). The vesica of Dubatoloviana is relatively narrow with a small cornutus on the distal diverticulum (absent in D. pahanga ) whereas the vesica of Brunia has a few massive cornuti on an elongate base (a feature characteristic for the genus). The female genitalia of the two genera are similar and display no remarkable differences.

Redescription. External morphology of adults ( Figs 1–6 ). Male. Forewing length 10–13 mm. Antenna sparsely ciliate. Head and thorax blackish-brown. Forewing elongate with almost straight costal and strongly convex anal margins. Forewing ground colour pale ochreous with slight suffusion of fuscous scales. Medial area with diffuse bluish-grey semilunar area posteriorly. Cell with short streak-like spot medially and round or comma-like spot distally (discal spot). Subterminal area with diffuse fuscous trapezoid spot at costa and intense fuscous suffusion at tornus. Cilia pale ochreous with admixture of fuscous scales. Hindwing pale ochreous, paler than forewing, with fuscous suffusion at apex. Abdomen pale ochreous with admixture of orange-ochreous scales distally. Female. Forewing length 11–14 mm. Antenna sparsely ciliate with cilia shorter than in male. Head, tegula and patagia ochreous-yellow. Thorax brown or blackish-brown. Forewing elongate with subapically somewhat down curved costal margin. Forewing ground colour blackish-brown or brown with ochreous-yellow costal and outer margins. Cilia ochreous-yellow. Hindwing monotonous pale ochreous-yellow. Abdomen ochreous. Male genitalia ( Figs 7–9 ). Uncus broad and swollen, setose, distally tapered with claw-like tip. Tuba analis membranous. Arms of tegumen broad. Vinculum shorter than tegumen, V-shaped. Valva equal in length to or longer than tegumen. Costa narrow but heavily sclerotised, forming elongate and apically pointed dorsal section of valva. Distal membranous lobe absent. Sacculus narrow with flattened and apically pointed distal process having additional process ventrally. Juxta weakly sclerotised, more or less trapezoid with shallow medial depression anteriorly. Phallus well-sclerotised, tubular, straight or somewhat curved medially, slightly dilated apically. Vesica with few short medial diverticula bearing granulation and elongate distal diverticulum bearing short cornutus in certain species. Female genitalia ( Figs 10–12 ). Papilla analis more or less trapezoid with rounded corners, weakly setose. Apophyses thin, apophyses anteriores equal in length to or shorter than apophyses posteriores. Ductus bursae short and weakly sclerotised. Posterior section of corpus bursae narrow and sclerotised while anterior one globular and membranous with two small round signa. Appendix bursae short, conical and apically rounded, positioned postero-dorsally or postero-laterally.

Distribution. The genus is distributed from Northeast India trough Indochina to Borneo Island.

Figures

Figures 1–6. Dubatoloviana spp.: adults. The specimens are deposited in MWM/ZSM.

Figures 7–9. Dubatoloviana spp.: male genitalia. The specimens dissected are deposited in MWM/ZSM.

Figures 10–12. Dubatoloviana spp.: female genitalia. The specimens dissected are deposited in MWM/ZSM.