A new Darwin wasp genus, Soliga (Hymenoptera: Ichneumonidae: Metopiinae), from India Author Ranjith, A. P. 84D114CA-C3FD-475D-97C0-6143EEF6C715 Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Srirampura, Jakkur Post, Bangalore 560064, India. ridhuranjith@gmail.com Author Priyadarsanan, Dharma Rajan 03907E93-F783-4720-9F7B-CB662E7FC745 Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Srirampura, Jakkur Post, Bangalore 560064, India. priyan@atree.org text European Journal of Taxonomy 2022 2022-12-16 852 1 57 76 http://dx.doi.org/10.5852/ejt.2022.852.2009 journal article 209392 10.5852/ejt.2022.852.2009 cd3e7813-cd5e-47e5-a502-3627e91afb48 2118-9773 7448070 1C63D4A9-7B69-403A-B61E-C3BCE8E334D5 Soliga ecarinata gen. et sp. nov. urn:lsid:zoobank.org:act: 77A6FF3E-CB0A-4059-858B-0B02765DFDC3 Figs 14a–c , 17–21 Etymology The new species is named accordingly, denoting the absence of propodeal carinae, and carinae on metasomal tergites. Material examined Holotype INDIA • ♀ ; Karnataka , Chamarajanagar , Biligiri Ranga Hill Wild Life Sanctuary ; 12°00.345′ N , 77°07.526′ E ; 976 m a.s.l. ; 20 Oct.–21 Nov. 2005 ; D.R. Priyadarsanan leg.; Malaise trap ; dry deciduous forest ; AIMB . Fig. 18. Soliga ecarinata gen. et sp. nov. , holotype, ♀ (AIMB). a . Head and mesosoma, ventral view. b . Propodeum, dorsal view. c . Fore and mid legs. d . Fore wing. e . Metasoma, lateral view. f . Metasoma, dorsal view. Paratypes INDIA – Nagaland • 1 ♀ ; Phek , Zapami Village , 25°53.3933′ N , 94°24.4991′ E ; 18–21 Mar. 2021 ; A.P. Ranjith leg.; Malaise trap ; AIMB . – Karnataka • 2 ♀♀ ; same collection data as for holotype; AIMB • 1 ♀ , 1 ♂ ; Chamarajanagar , Biligiri Ranga Hill Wild Life Sanctuary , Gombekallu ; 11°54.363′ N , 77°11.235′ E ; 3 Apr.–16 May 2005 ; D.R. Priyadarsanan leg.; Malaise trap ; evergreen forests ; AIMB . Description Female ( holotype ) MEASUREMENTS. Body length 4.0 mm, fore wing length 3.0 mm. HEAD. Head 1.3× as wide as long in anterior view, 1.6× as wide as long in dorsal view. Face 1.1 × as long as wide. Face and clypeus not separated by transverse groove ( Fig. 17b ). Clypeus 2.2× as wide as long, sparsely setose ( Fig. 17b ). Mandible sparsely setose ( Figs 17b , 18a ). Malar groove incomplete ( Figs 17b , 18a , 19a ). Maxillary and labial palps short and stout ( Fig. 18a ). Temple 0.75 × as long as transverse diameter of eye in lateral view. Frons and vertex smooth, sparsely setose ( Fig. 17c ). Ratio of OOL: diameter of posterior ocellus: POL = 11: 11: 12. Antenna with 29 flagellomeres ( Fig. 17a ). First flagellomere 1.4× as long as second, 2.0 × as long as wide. Second flagellomere 1.4× as long as wide. Terminal flagellomere 3.0× as long as wide. Fig. 19. Soliga ecarinata gen. et sp. nov. , holotype, ♀ (AIMB). a . Head, ventro-lateral view. b . Metasoma, ventral view. MESOSOMA. Mesosoma 1.5× as long as high. Pronotum medio-dorsally smooth ( Fig. 17f ), glabrous, laterally concave ( Fig. 17a, d–e ). Mesoscutum as long as wide, smooth, sparsely setose ( Fig. 17f ). Scutellum 0.7 × as long as wide basally, smooth, sparsely setose ( Fig. 17f ). Propodeum smooth, sparsely setose ( Fig. 18b ). Mesopleuron smooth, sparsely setose ( Figs 17a, d–e , 19a ). Metapleuron smooth mostly glabrous ( Fig. 17d ). Pleural carina bend downwards bordering anterior transverse groove ( Figs 17a, d–e , 19a ). METASOMA. Metasomal tergites smooth and polished, distantly punctate, sparsely setose ( Figs 17a , 18e–f ). First metasomal tergite 1.1× as long as apical width. Second metasomal tergite 0.7× as long as apically wide. Third metasomal tergite 0.6× as long as apically wide. Subgenital plate smooth, setose ( Figs 18e , 19b ). Ovipositor sheath setose ( Fig. 18e ). COLOUR. Body (generally) yellow, eye grey; flagellomeres, scape and pedicel laterally, tip of mandible, pterostigma, wing venation, tarsal claws, metasomal sternites, laterotergites, ovipositor sheath brown; ocellar region, occiput laterally and medially with black patches; pronotum dorsally with black transverse band; mesoscutum with medial and lateral longitudinal black bands, with black margin laterally and anteriorly; scutoscutellar groove black; mesopleuron with black band anteriorly and medio-posteriorly; metapleuron with black band anteriorly; propodeum with black transverse band basally and broad longitudinal band medially; first and second metasomal tergites black except apical yellowish band, third metasomal tergite with a pair of sublateral broad spots basally, fourth metasomal tergite with black spots baso-laterally, fifth and sixth metasomal tergites with black spots baso-laterally; first and second metasomal tergite apically, metasomal tergites 3–6 except baso-laterally reddish brown. Male Same as female. Biology Unknown. Distribution India ( Karnataka and Nagaland ).