Miltochrista eugoana, Volynkin & Černý, 2021

Volynkin, Anton V. & Černý, Karel, 2021, On the taxonomic status of the genus Hypeugoa Leech with description of a new species of Miltochrista Hübner from Thailand (Lepidoptera: Erebidae: Arctiinae Lithosiini), Zootaxa 5023 (3), pp. 421-432 : 431

publication ID	https://doi.org/10.11646/zootaxa.5023.3.6
publication LSID	lsid:zoobank.org:pub:E791C3F5-6372-41B9-B84D-F23C6404A429
DOI	https://doi.org/10.5281/zenodo.5226305
persistent identifier	https://treatment.plazi.org/id/03B1481A-9360-FFE1-5A8D-27B0FDFCD5A5
treatment provided by	Plazi
scientific name	Miltochrista eugoana
status	sp. nov.

Treatment

Miltochrista eugoana sp. nov.

( Figs 13, 14 View FIGURES 9–16 , 23 View FIGURES 21–24 )

Type material. Holotype ( Figs 13 View FIGURES 9–16 , 23 View FIGURES 21–24 ): male, “ 10–20.VIII.2012 N Thailand, Chiang Mai Prov., Thong Chai Range, near Queen Sirikit Botanical Garden , 700m, 18°54´10.59´´N 98°51´46.05´´E, edge of secondary forest, local collector leg.” / “Slide ZSM Arct. 2020- 209♂ A. Volynkin ” (MWM/ ZSM, ex CAV). GoogleMaps

Paratype: 1 male, same data as for holotype, gen. prep. No.: AV5908 (prepared by Volynkin) ( CAV) GoogleMaps .

Diagnosis. The forewing length is 10.5 mm in males. The new species ( Figs 13, 14 View FIGURES 9–16 ) is superficially similar to M. radaricola ( Figs 11, 12 View FIGURES 9–16 ) but differs in the narrower forewing (the length to width ratio is 1.5:1 vs. 1.85: 1 in M. radaricola ), and the more diffuse forewing pattern. Compared to M. radaricola ( Figs 21, 22 View FIGURES 21–24 ), the male genital capsule of M. eugoana sp. nov. ( Fig. 23 View FIGURES 21–24 ) has a somewhat thinner uncus, a wider juxta, a more elongate valva with a more distally rounded distal lobe, a less setose sacculus and a longer and curved distal saccular process which is straight in M. radaricola . The phallus of the new species is shorter and narrower than that of M. radaricola . The vesica of M. eugoana sp. nov. is conspicuously shorter and narrower than in M. radaricola and has a smaller and membranous subbasal diverticulum which is granulated in M. radaricola . The medial diverticulum of the new species is conspicuously smaller and evenly granulated whereas it has a membranous basal section in M. radaricola . The lateral diverticulum of M. eugoana sp. nov. is positioned distally while it is positioned medially in M. radaricola . The lateral area of the vesica of the new species is membranous whereas it bears an elongate area of granulation in M. radaricola . Compared to M. radaricola , the terminal cornutus of M. eugoana sp. nov. is thicker and has a strongly dilated base (it is only slightly dilated basally in M. radaricola ).