On the taxonomy of the genus Agrisius Walker, 1855, with descriptions of two new species from Vietnam and Laos (Lepidoptera, Erebidae, Arctiinae) Author Volynkin, Anton V. Author Dubatolov, Vladimir V. Author Kishida, Yasunori text Zootaxa 2018 2018-08-14 4459 1 128 138 journal article 29033 10.11646/zootaxa.4459.1.5 804d0767-6c32-404a-b125-80f95ee8429e 1175-5326 1458416 951081F8-5CEE-4E78-AFC5-0925284EF9EC The A. leloii species-group Agrisius leloii sp. nov. ( Figs 9, 10 ) is very close to the A. japonicus species-group ( Figs 1–8 ) by its external appearance, the long basal plate of the uncus with medial dorsal crest, the hood-like juxta, the absence of coremata on the apex of the valve (only longer hairs presented), the presence of only one, short saccular process, and the absence of cornuti and spinules in the aedeagus vesica, but the long distal branches of its uncus ( Figs 26 , 27 ) are very different from those of the A. japonicus species-group ( Figs 21–25 ) and resemble those of the A. guttivitta species-group ( Figs 28–32 ). However, in the A. guttivitta species-group those branches are not curved dorsoventrally and are pointed apically, whereas in A. leloii sp. nov. the distal branches of the uncus have the short and trigonal apical-dorsal processes similar to those of the A. japonicus species-group, but differ from the latter by the claw-like apexes, which are curved downwards (in the A. japonicus species-group they are curved upwards). The female genitalia of A. leloii sp. nov. ( Fig. 36 ) differ from those of the A. japonicus species-group ( Figs 33, 34 ) by the presence of a heavily sclerotized antevaginal plate, and from the A. guttivitta species-group ( Figs 37–41 ) by the absence of heavily sclerotized antrum. Taking into account all listed genitalic characters, we treat A. leloii sp. nov. as a member of the separate species-group, which is morphologically intermediate between the A. japonicus and the A. guttivitta species-groups.