Agalope glacialis (Moore, 1872) Huang & Horie & Fan & Wang & Espeland, 2023

Huang, Si-Yao, Horie, Kiyoshi, Fan, Xiao-Ling, Wang, Min & Espeland, Marianne, 2023, A review of the genus Agalope Walker (Lepidoptera, Zygaenidae, Chalcosiinae) with taxonomic notes and descriptions of three new genera and three new species, Zootaxa 5284 (2), pp. 291-321 : 305-306

The glacialis species-group

Diagnosis. The glacialis species-group is distinguished from the pica and dejeani species-groups by the combination of the following characters: 1) Forewing bears a large and broad medial blackish band, while forewing bears two transverse bands in pica species-group and dejeani species-group. 2) Hindwing bears a blackish dot at the distal end of the discal cell on hindwing, which is absent in the pica and dejeani species-groups. 3) In the male genitalia, the posterior tegumenal projection is basally narrower, similar to that in dejeani species-group, while in pica species-group it is basally broader with lateral extension. 4) The valva is relatively broader and shorter than those in P. dejeani and P. pica species-groups.

Remarks. The subspecies of P. glacialis comb. n. ( Figs 39–44 , 60 , 84–87 , 104 , 118 ) require an elucidation based on more extensive material. Currently it seems that only the Javanese subspecies parthenie ( Jordan, 1907b) comb. n. (Type locality: Java) and the Bornean subspecies postfasciata ( Holloway, 2011) comb. n. (Type locality: Tenompok, Mt. Kinabalu, Sabah) might be sufficient for subspecific classification. The Chinese subspecies angustifasciata ( Hering, 1922) comb. n. was described based on a single male from Kwaitschou (= Guizhou Province), China. Hering (1922) stated that the Chinese population differs from the Indian population (=nominotypical subspecies) in the narrower wings, the brownish line in the medial band on forewing situated more proximally, the medial band broken posteriorly near the dorsum, the straighter inner margin of the darkish shade covering the outer one third of forewing and the ill-developed hindwing costal spot. However, after examining more specimens of glacialis from the continental Asia, we found that these features are quite variable even within the same population and cannot support the distinctness of the Chinese subspecies, hence ssp. angustifasciata is most probably a synonym of the nominotypical subspecies. As for the taxon ardjuna ( Roepke, 1936) comb. nov. from “Ardjuna-Geb. in Ostjava (Mt. Arjuno, East Java)”, Holloway (2011) pointed out it might only be the male of P. glacialis parthenie, and should therefore likely be synonymized. However, such treatment requires the examination of more material from that region.

Species composition

P. ardjuna ( Roepke, 1936) comb. nov.

P. glacialis glacialis ( Moore, 1872) comb. nov.

P. glacialis parthenie ( Jordan, 1907b) comb. nov.

P. glacialis angustifasciata ( Hering, 1922) comb. nov.

P. glacialis postfasciata ( Holloway, 2011) comb. nov.

Figures

FIGURES 35–44.Adults of Paragalope gen. n. 35, P.bieti, male, Menia, Sichuan, China, NHMUK014199955 (NHMUK, ©The Trustees of NHMUK); 36, ditto, male, Menia, Sichuan, China, NHMUK014199952 (NHMUK, ©The Trustees of NHMUK); 37, ditto, male, Menia, Sichuan, China, NHMUK014199956 (NHMUK, ©The Trustees of NHMUK); 38, ditto, female, Menia, Sichuan, China, NHMUK014199953 (NHMUK, ©The Trustees of NHMUK); 39, P. glacialis, ST, female, Darjiling (Darjeeling), West Bengal, India, NHMUK014199933 (NHMUK, ©The Trustees of NHMUK); 40, ditto, male, Darjiling (Darjeeling), West Bengal, India, NHMUK014200156 (NHMUK, ©The Trustees of NHMUK); 41, ditto, Jiangle, Fujian, China, JF045 (CJF); 42, ditto, female, Jiangle, Fujian, China, JF046 (CJF); 43, ditto, male, Kwei-chow(Guizhou), China, NHMUK014199936 (NHMUK, ©The Trustees of NHMUK); 44, ditto, female, Hagiang, Vietnam, ZFMK Lep153413 (ZFMK).

FIGURES 51–63. Lateral view of the male genitalia of Agalope/Elcysma-related genera. Depository: 51, 52, 58: ZMH; 53, 55, 63: ZFMK; 54, 57, 61: CHSY; 56: SCAU; 59, 60: NHMUK (©The Trustees of NHMUK); 62: CSYSU.

FIGURES 82–87. Male genitalia of Paragalope gen. n. spp. Depository: 82–86: NHMUK (©The Trustees of NHMUK); 87: CJF.

FIGURES 93–107. Eighth tergite of Agalope/Elcysma-related genera. Depository: 93, 94, 100: ZMH; 95, 96, 107: ZFMK; 97, 101, 103: NHMUK (©The Trustees of NHMUK); 98: SCAU; 99, 102, 105: CHSY; 104: CJF; 106: CSYSU.

FIGURES 115–119. Female genitalia of Paragalope gen. n. and Elcysma spp. Depository: 115, 118, 119: ZFMK; 116: CHSY; 117: NHMUK (©The Trustees of NHMUK).