Dubatoloviana navneetsinghi, Volynkin, 2021

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 : 45-46

Dubatoloviana navneetsinghi sp. n.

http://zoobank.org/ urn:lsid:zoobank.org:act:F8ECBF30-F790-49A3-9999-99861C65A021

( Figs 1, 2 , 7 , 10 )

Type material. Holotype ( Figs 1 , 7 ): male, “N- E India, Assam, Nambor Reserv [e] Forest , Garampani, H= 100m, 26°30'N, 93°55'E, 21–29. Nov. 1997, lg. V. Siniaev [Sinyaev] & M. Murzin ”, gen. prep. No.: ZSM Arct. 2021-097 (prepared by Volynkin) (MWM/ ZSM).

Paratypes: 1 male, 22 females, the same data as in the holotype, gen. prep. No.: ZSM Arct. 2021- 098 (female) (prepared by Volynkin) (MWM/ ZSM).

Diagnosis. The forewing length is 11.0 mm in males and 12.0–13.0 mm in females. The new species is most externally similar to D. pahanga but differs from it in its smaller size, the round discal and the indistinct medial spots in male, and the wider forewing with a more subapically down curved costal margin and markedly wider ochreous-yellow costal and outer areas in female. Compared to D. trimacula , male of D. navneetsinghi sp. n. has a somewhat medially wider forewing with a somewhat paler ground colour and a less intense fuscous suffusion. Female of the new species differs from that of D. trimacula in the wider forewing with a more subapically down curved costal margin, the darker, blackish-brown forewing ground colour (it is brown in D. trimacula ), and the medially wider but distally less dilated ochreous-yellow costal forewing area. The male genital capsule of D. navneetsinghi sp. n. is similar to that of D. pahanga but is recognised by the shorter and narrower uncus with a smaller claw-like tip, the medially wider valva with conspicuously shorter distal process of the dorsal section, and the longer triangular and apically curved distal saccular process bearing a short and blunt ventral protrusion whereas in D. pahanga the distal saccular process is shorter with two thorn-like processes apically. Compared to D. trimacula , the male genital capsule of D. navneetsinghi sp. n. has a larger uncus, wider arms of the tegumen, a shorter and wider valva with a tapered and apically pointed distal process of the dorsal section (it is rectangular with a claw-like tip in D. trimacula ), and an apically thicker distal saccular process with a conspicuously smaller ventral process. The phallus of the new species is almost straight and somewhat tapered distally whereas it is slightly medially curved and distally dilated in D. pahanga and shorter and slightly subapically curved and apically dilated in D. trimacula . The vesica of D. navneetsinghi sp. n. is narrower than in D. pahanga and has a shorteer and narrower subapical diverticulum and a longer distal diverticulum bearing a cornutus which is absent in D. pahanga . Compared to D. trimacula , the vesica of the new species has a shorter subapical diverticulum and a basally narrower distal diverticulum bearing a basally narrower cornutus. The female genitalia of D. navneetsinghi sp. n. clearly differ from those of the congeners in the rugose ductus bursae, the shorter and broader posterior section corpus bursae, the markedly smaller anterior section of the corpus bursae bearing smaller signa, and the larger appendix bursae positioned postero-laterally whereas it is positioned postero-dorsally in D. pahanga and D. trimacula .

Distribution. Known from Northeast India (Meghalaya and Arunachal Pradesh) ( Kirti & Singh 2016, as D. pahanga ).

Etymology. The new species is dedicated to Dr Navneet Singh (Kolkata, India), famous expert in Indian Arctiinae .

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.