Nephelomilta hortensis subsp. hortensis Volynkin & Černý 2018, sp. nov.
Creators: name: Volynkin, Anton V.
name: Černý, Karel
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Nephelomilta
Nephelomilta hortensis
Nephelomilta hortensis hortensis volynkin &amp; černý

description: Nephelomilta hortensis hortensis Volynkin & Černý, sp. nov.
(Figs. 69–71, 114, 144)
Type material. Holotype (Figs. 69, 114): ♂, “N. Thailand, Chiang Mai prov., Fang distr., Doi Ang Khang, 1425 m, 29°54’11”N 99°2’32”E, 11–15.IX.2007, leg. T. Ihle”, slide AV2850 ♂ Volynkin (Coll. MWM/ ZSM, ex coll. CKC).
Paratypes: 1 ♂, 1 ♀, same data as in the holotype (Coll. CKC); 4 ♂, same locality and collector, but 19- 23.IX.2006, slide AV2851 ♂ Volynkin (Coll. CKC); 1 ♀, N Thailand, Chiang Mai, Fang, Doi Ang Khang, 1425 m, 11–15.IX.2007, 29°54’11’’N 99°2’32’’E, leg. T. Ihle, slide AV2852 ♀ Volynkin (Coll. CKC); 7 ♂, 2 ♀, N Thailand, Chiang Mai [prov.], Doi Inthanon NP, 1416 m, 18°30’59”N, 98°28’13”E, 6–7.VI.2005, leg. K. Černý, slides AV2556 ♂, AV2853 ♂, AV2854 ♂, AV2855 ♀ Volynkin (Coll. CKC); 1 ♂, Thailand, Changwat Chiang Mai, 2 km S of Ban Kum, 1700 m, 13–14.VI.1998, lg. István Soós & Atilla Szabó (Coll. MWM/ ZSM); 1 ♂, Thailand, Changwat Nan, 30 km E of Pua, 1700 m, 10.XI.1999, leg. Márton Hreblay, slide MWM 31665 (♂) Volynkin (Coll. MWM/ ZSM); 2 ♂, same locality, but 22–23.X.1999, leg. A. Szabó & Z. Czere, slide ZSM Arct. 40/2017 (♂) Volynkin (Coll. MWM/ ZSM); 1 ♀, Thailand, Changwat Nan, 22 km N of Bo Luang, 1100 m, 29–30.VI.1998, leg. István Soós & Atilla Szabó, slide ZSM Arct. 41/2017 (♀) Volynkin (Coll. MWM/ ZSM).
Diagnosis. Length of forewing is 11 mm in males and 14–14.5 mm in females. The new species is very similar externally to N. melli sp. nov. and N. angkorensis, and differs only in the broader posterior section of the medial line. In many cases a reliable identification is possible only by the genitalia structure: compared to those of N. melli sp. nov., the male genitalia of N. hortensis sp. nov. have the shorter apical costal lobe, the smaller and more weakly sclerotized carinal plate of the aedeagus with the much smaller thorn, and the significantly longer and broader medial diverticulum of the vesica with spines on its tip; compared to those of N. angkorensis, the male genitalia of N. hortensis sp. nov. have the valve narrower basally, the narrower distal section of the costa, the narrower apical costal lobe, the narrower ventral costal plate with the smaller ampulla, the larger distal membranous lobe of the valve, the significantly smaller aedeagus, the smaller and more weakly sclerotized carinal plate of the aedeagus with the much smaller thorn, the much narrower vesica, the much smaller distal diverticulum with the cluster of the smaller and less numerous spines, and the much shorter and narrower medial diverticulum with the much smaller spines on its tip. The female genitalia of N. hortensis sp. nov. differ from those of N. angkorensis in the significantly smaller antevaginal plate, the symmetric lateral margins of the ostium bursae, the longer ductus bursae, and the larger signum.
Distribution. The nominate subspecies is known from North Thailand (Chiang Mai and Nan provinces).
Etymology. ‘Hortensis’ means ‘garden’ in Latin, the species name refers to its type locality, the botanical garden in Doi Ang Khang (Chiang Mai Province of Thailand).
description: Published as part of Volynkin, Anton V. & Černý, Karel, 2018, Revision of the genus Nephelomilta Hampson, 1900, with descriptions of twelve new species and two new subspecies (Lepidoptera, Erebidae, Arctiinae), pp. 401-451 in Zootaxa 4472 (3) on page 421, DOI: 10.11646/zootaxa.4472.3.1, http://zenodo.org/record/1452626