Nanarsine, Volynkin, 2019

Volynkin, Anton V., Huang, Si-Yao & Ivanova, Maria S., 2019, An overview of genera and subgenera of the Asura / Miltochrista generic complex (Lepidoptera, Erebidae, Arctiinae). Part 1. Barsine Walker, 1854 sensu lato, Asura Walker, 1854 and related genera, with descriptions of twenty new genera, ten new subgenera and a check list of taxa of the Asura / Miltochrista generic complex, Ecologica Montenegrina 26, pp. 14-92 : 62-63

Genus Nanarsine Volynkin, gen. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:8BE31058-0884-489B-9EDF-D2BD3CF6D894 ( Figs 84, 85 , 148, 149 , 202 )

Type species: Hypocrita porphyrea Snellen, 1880 .

Etymology. The generic name is a combination of Latin ‘nanus’ meaning ‘dwarf’ or ‘very small’ and the generic name Barsine . The name refers to the small size of its moths in comparison with species of Barsine , which members of Nanarsine previously were associated with. Gender feminine.

Diagnosis. Small moths with reddish, yellow of white colouration and various pattern. Antennae of both sexes are ciliate. The male genital capsule of Nanarsine is similar to that of some Miltochrista species due to its well-developed distal saccular process and the absence of a medial costal process, but aedeagus vesica is armed with patches of numerous small spinules or very small stout cornuti, the feature common for Barsine , Ammatho , Asura and other related genera. In some species anellus bears two patches of spinules. The distal membranous lobe is reduced, very small or absent. The main autapomorphic feature is the female antrum structure: in Nanarsine it has elongated sclerotised stick-like lateral plates, but is membranous medially; the posterior margin of antrum is sclerotised, strongly connected to the 7 th abdominal sternite. The ductus bursae is dorso-ventrally flattened, sclerotised. Corpus bursae membranous, with an area of weak sclerotisation around the signum bursae, or (in N. postalba , N. semilutea and N. milani ) covered with spinulose scobination and has a sclerotised lateral plate. The appendix bursae is small and membranous, situated postero-laterally and directed posteriorly.

Distribution. The genus is widespread from Mainland China and Taiwan through Indochina and Sundaland to the Philippines.

Number of species. The genus comprises seven valid species. Three of them ( N. postalba , N. semilutea and N. milani ) form a separated group with female genitalia significantly different from those of N. porphyrea and related species. The status of this group is unclear and will be clarified later.

Genus Amphisine Volynkin, gen. nov. https://zoobank.org/ urn:lsid:zoobank.org:act:986E7804-8C6B-46D8-9106-17C1B4E7D523 ( Figs 86, 87 , 150 , 203 )

Type species: Hypoprepia perpusilla Walker, 1862 .

Etymology. The generic name is a combination of the Greek prefix ‘αμφί-‘ meaning ‘intermediate’ and the generic name Barsine . The name refers to the male genitalia features of the new genus being intermediate between Barsine sensu lato and Miltochrista . Gender feminine.

Diagnosis. Small moths with reddish or yellow colouration and dark grey or blackish pattern. Antennae of both sexes are ciliate. The male genital capsule resembles that of Miltochrista due to the absence of a medial costal process, but is characterised by the combination of the following features: (1) the costa is thickened medially; (2) the costa apex is elongated distally and forming a narrow distal process of valva; (3) the sacculus is narrow, fused with costa apically (in the A. asaphes group by a very narrow plate along the outer concave valva margin); (4) the distal saccular process is short, present as a small protrusion; (5) the aedeagus vesica with fields of granulation and (in the A. asaphes group) with a cluster of small trigonal cornuti. The female genitalia have the dorso-ventrally flattened and sclerotised ductus bursae, the corpus bursae being densely and evenly scobinate, and the appendix bursae being membranous, situated postero-laterally and directed posteriorly. In the A. perpusilla group a signum is present and the posterior end of corpus bursae is weakly sclerotised.

Distribution. Indochina, Sundaland and the Philippines.

Number of species. The genus comprises five valid species.

Figures

Figures 82–103. Type species of genera and subgenera of the Asura / Miltochrista generic complex: adults. Depositories of specimens: 82, 84, 85, 90–93, 98, 99 – NHMUK; 83, 88, 89, 97, 100, 101 – MWM/ZSM; 86, 87, 94, 95 – CKC; 96, 102, 103 – ZFMK.

Figures 148–151. Members of the Asura / Miltochrista generic complex: male genitalia. 148, 150, 151 – type species of genera.

Figures 198–204. Type species of genera of the Asura / Miltochrista generic complex: female genitalia.