Dolgoma recta Černý, 2009

Volynkin, Anton V. & Černý, Karel, 2021, Taxonomic review of the genus Dolgoma Moore (Lepidoptera: Erebidae: Arctiinae) from Thailand with descriptions of three new species, Zootaxa 5060 (3), pp. 417-428 : 427-428

Dolgoma recta Černý, 2009

( Figs 15, 16 , 25 , 32 )

Dolgma [ sic] recta Černý in Černý & Pinratana, 2009, Moths of Thailand, 6, 143, pl. 29, figs 288a, 288b (Type locality: “C. Thailand, Saraburi, Khao Yai NP, Mt. Khao Kaew , 1244 m, 14°21’56’’N, 101°24’E ”).

Type material examined. Holotype ( Fig. 15 ): male, “ C. Thailand, Saraburi, Khao Yai NP, Mt. Khao Kaew , 1244 m, 14°21’56’’N, 101°24’E, 31.V.2005, leg. K. Černý ” / red label “ Holotype Dolgma [sic] recta sp. n. Karel ČERNÝ 2009 ” / QR-code label with a unique number “ NHMUK010889669 ” ( NHMUK) . Paratypes: THAILAND: 10 males, 15 females from Saraburi, Chiang Mai and Lampang Provinces listed in Černý & Pinratana (2009), gen. prep. Nos.: AV4734 (male) and AV4735 (female) (prepared by Volynkin) (all in CKC) .

Additional material examined. THAILAND: 3 males, Chiang Mai, Doi Inthanon NP, 1416m, 18°30’59’’N, 98°28’13’’E, 7–8. V . 2008, K. Černý leg. ( CKC) .

Diagnosis. Forewing length is 11.5–12 mm in males and 12.5–13.5 mm in females. Dolgoma recta ( Figs 15, 16 ) is closely similar superficially to Dolgoma rectoides Dubatolov, 2012 (illustrated by Dubatolov (2012: pl. 3, fig. 1)) distributed in Vietnam and north-eastern India ( Singh et al. 2019), but can easily be distinguished by its ochreous yellow forewing coloration and the fuscous irroration on the hindwing. The male genitalia of D. recta ( Fig. 25 ) differ from those of D. rectoides (illustrated by Dubatolov (2012: fig. 1)) by the subapically less angled distal saccular process bearing only two spines apically whereas the distal saccular process of D. rectoides is more strongly angled subapically and bears several spines apically. As the female of D. rectoides is unknown, the female genitalia of D. recta ( Fig. 32 ) were compared with those of D. angulifera ( Fig. 31 ) from which they differ in the narrower antrum, the evenly sclerotized posterior section of the corpus bursae (in D. angulifera it is sclerotized only laterally), and the more elongate diverticulum of the appendix bursae.

Distribution. Known from north-eastern India (Arunachal Pradesh), Bhutan ( Singh et al. 2019) and North and Central Thailand (Chiang Mai, Lampang and Saraburi Provinces) ( Černý & Pinratana 2009).

Figures

FIGURES 9–16. Dolgoma spp.: adults. Depositories of the specimens: 9 and 13 in MWM/ZSM (ex CKC); 10 and 16 in CKC; 11, 12 and 15 in NHMUK (©The Trustees of NHMUK); 14 in SZMN (photo by V.V. Dubatolov).

FIGURES 24–25. Dolgoma spp.: male genitalia. Depositories of the specimens dissected: 24 in SZMN (photo by V.V. Dubatolov); 25 in CKC.

FIGURES 30–32. Dolgoma spp.: female genitalia. Depositories of the specimens dissected: 30 and 32 in CKC; 31 in NHMUK (©The Trustees of NHMUK).