Amuria baei Bayarsaikhan & Efetov 2026, sp. nov.

Résumé fourni par la source

Amuria baei Bayarsaikhan & Efetov sp. nov. Figs 7 A, 7 B, 8 A, 8 B, 9 A – C, 10, 14 A – C, 18 A, 18 B Type material. Holotype. 1 male, Korea, Gyeongsangnam-do, Is. Geoje, Mt. Noja, 22–26 Jun. 1998, 34°47'18.6"N, 128°36'56.1"E, Y. - S. Bae et al. leg., adult and genitalia slide no. INU -12884; deposited in INU. Paratypes. 1 male, 5 females, same collection data as the holotype, adults and genitalia slides no. INU -12927 male, 12928 female, 13065 female • 4 females, Korea, Gyeongsangbuk-do, Younju-shi, Mt. Seonda, 29 Jun. 1998, Bae Y. - S. and Paek M. - K. leg., adult and genitalia slide no. INU -12885 female, 13064 female; deposited in INU. Diagnosis. By the wing pattern of this species, this new species is hardly distinguishable from other Korean zygaenid moths, particularly those of the genus Inope Staudinger, 1887. Both of these genera have a dark brown ground wing color without distinct patterns, as well as similar body coloration and size. Specimens of the new species were previously mixed and misidentified as Inope maerens (Staudinger, 1887) in the INU collection. This misidentification is the reason the species has remained undescribed since its collecting in 1998. However, Amuria baei sp. nov. differs from Inope species by having a more sharply angled forewing apex and a pale yellowish band near the distal end of the antennae in both sexes; the ventral side of thorax weakly covered with yellowish scales, the labial palpus pale yellowish, except pale brown first segment. There are only two species of Amuria known, viz. Amuria chorista (Jordan, 1908) and A. lugubris (Jordan, 1908), with a similar habitus as Amuria baei sp. nov. All three species have uniformly dark wings on the upperside and without or almost no pattern on the underside. Amuria chorista is easily distinguished from A. baei by its narrower wings, bright yellow proboscis, and the dark fringe of the wings. Amuria lugubris is smaller, has as well a dark proboscis and a yellowish fringe like A. baei but the wings are even more narrow than those of A. chorista, the ground color is not brownish but more greyish black, and A. lugubris also has a purple sheen on wings and body. Moreover, the underside of the wings is paler in color than the upperside and a yellowish pattern in the form of a stripe on the distal part of the costa and at cell on the hindwing underside are visible. In A. lugubris the whole underside of the body, from the palpi on the head to the end of the abdomen is yellow, whereas in A. baei only the palpi, parts of thorax and legs, and the last segment of the abdomen are brownish yellow. Artona chorista and A. lugubris are only known from northeastern India (so far). Description. Male (Fig. 7 A, B). Forewing length 7.5–8 mm (holotype 8 mm), forewing breadth 3–3.5 mm (holotype 3.5 mm); hindwing length 5–6 mm (holotype 6 mm), hindwing breadth 3–3.5 mm (holotype 3 mm); length of body 5.5–6 mm (holotype 6 mm); length of antenna 4.5–5 mm (holotype 5 mm). Female (Fig. 8 A, B). Forewing length 7.5–8 mm, forewing breadth 3–4 mm; hindwing length 5.5–6 mm, hindwing breadth 3–3.5 mm; length of antenna 4.5–5.5 mm. Habitus of males and females similar. Frons protruding forward (Fig. 9 A). Compound eyes black (Fig. 9 A, B). Chaetosema triangular, protruding forwards between compound eye and ocellus, brown (Fig. 9 C). Ocellus brown (Fig. 9 C). Proboscis brown, well developed (Fig. 9 A). Palpi pale brownish yellow, long (Fig. 9 A, B). Antenna bipectinate in male, length of pectinations in middle part of antenna in males 0.5 mm (holotype 0.5 mm), antenna with 45 segments in male (16 distal segments biserrate) and biserrate in female (Figs 9 D, 9 E, 9 F, 10). Thorax, forewing, and hindwing upperside and underside as well as abdomen brown. Fringes of wings yellow. Femura of legs, parts of thorax and tip of last segment of abdomen ventrally brownish yellow. Foreleg with tibial epiphysis, midleg with one pair of spurs (apical), hindleg with three spurs (one middle and two apical). Male genitalia (Fig. 14 A, B, C). Uncus single, narrow, with pointed apex, sclerotized. Valva triangular, fan-shaped, with rounded apex, slightly sclerotized dorsally and strongly sclerotized ventrally, apex of sacculus with small pointed process and characteristic Artona - finger with curved apex (apex of finger covered with a brush of setae). Juxta sclerotized, subquadrate. Phallus long, more than 3 times longer than uncus, straight, vesica with one large sclerotized cornutus with pointed apex. Female genitalia (Fig. 18 A, B). Ostium bursae roundish with sclerotization only dorsally; proximal part of ductus bursae short, cone shaped, translucent; remainder of ductus bursae strongly dilated, forming sclerotized ovoid praebursa, bearing a double rows of long tooth-like sclerotizations, there is also additional group of pointed spines on the walls of praebursa; distal part of praebursa translucent; ductus intrabursalis narrow, translucent; corpus bursae membranous, ovoid with folded walls, without signa. Distribution. South Korea (Is. Geoje, Gyeongsangnam-do and Mt. Seondal, Gyeongsangbuk-do). Host plants. No data are available on the host plants of this new species. Etymology. The specific name is dedicated to Prof. Yang-Seop Bae (Incheon National University, Republic of Korea), in gratitude for his mentorship during the graduate studies of several authors of this paper and in recognition of his outstanding contributions to the taxonomy and biodiversity of Lepidoptera in Asian countries.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.