Iranomecyna dimorphalis Amsel, 1961

Alipanah, Helen & Slamka, František, 2023, A revision of the subfamily Spilomelinae (Lepidoptera, Crambidae) in Iran with description of a new species, Zootaxa 5248 (1), pp. 1-70 : 67-68

Iranomecyna dimorphalis Amsel, 1961

( Fig. 27F )

Material examined. 2 ÔÔ: Kermân Prov.: 1 Ô, Jiroft, 14 km NW Dehbakri vill., near Zaryâb vill., N 29°04ˊ34.3″, E 57°50ˊ09.3″, 2325 m, 9.vi.2017, Âlipanâh, Afsariân leg.; Zanjân Prov.: 1 Ô, Mâhneshân, Angurân protected area, 2.2 km after Sâri Âghol vill., N 36°50 ΄8″, E 47°37 ΄26″, 1240 m, 18.vi.2020, Âlipanâh, Falsafi leg. (gen. prep. HA-2787, HMIM) .

Distribution. Iran: Alborz (Karaj; locality of the holotype), Fars (Sineh Sefid, Shiraz, Mian Kotal), and Hamedan (Hamedan) Provinces ( Amsel 1961).

Remarks. According to Amsel (1961), uncus is short and not separated from tegumen, and phallus has a large bundle of very fine cornuti distally. However, in our examined male, uncus is clearly distinguishable from tegumen, with slightly longer length ( Fig. 28B ), and cornuti looks like two longitudinal groups of sclerotized spines: one longer and the other slightly shorter ( Fig. 28B ). Additionally, juxta is bearing a medial cleft posteriorly, contrary to the smooth posterior surface of juxta illustrated by Amsel (1961: 413).

This species was described as Paramecyna dimorphalis by Amsel based on three males and seven females collected by F. Brandt and E. P. Wiltshire during 1936–1938. Koçak and Kemal (2016), proposed a replacement name, Iranomecyna for the genus owing to its homonymy with Paramecyna Aurivillius, 1910 . The systematic position of this monotypic genus was not discussed by Amsel at that time. In this study we examined only two males, and no information about the female and its genitalia. Iranomecyna is close to Metasia in the shape of valvae, fibulae and juxta in our opinion ( Fig. 28B ), but has unifurcate uncus contrary to bifurcate uncus of Metasia species.

Figures

FIGURE 27. A) Mecyna subsequalis (Herrich-Schäffer), female, West Azarbaijan, Orumiyeh. B, C) Nomophila noctuella (Denis & Schifferm̧ller), male, Kerman, Fariab (B), and male, Tehran, Evin (C). D) Elbursia stocki Amsel, male. C) Mukia nigroanalis Amsel, male. D) Iranomecyna dimorphalis Amsel, male (scale bar = 10.0 mm).

FIGURE 28. Male genitalia of Mukia nigroanalisAmsel (A, C) (genitalia slide HA-2702, HMIM) and Iranomecyna dimorphalis Amsel (B, D) (genitalia slide HA-2787, HMIM). A, B) Main body in ventral view together with phallus. C, D) Cornuti.