Genus Promalactis Meyrick (Lepidoptera: Oecophoridae) in northern Vietnam. Part II: six new species of the genus Author Kim, Sora Author Park, Kyu-Tek Author Byun, Bong-Kyu Author Heppner, John B. Author Lee, Seunghwan text Journal of Natural History 2012 2012-04-30 46 15 - 16 897 909 http://dx.doi.org/10.1080/00222933.2011.651634 journal article 10.1080/00222933.2011.651634 1464-5262 4666940 Promalactis diorbis Kim and Park , sp. nov. ( Figures 1E,F ; 2C ; 4 D–F) Diagnosis This species is similar to the Chinese species Promalactis punctuata Wang , in wing pattern of forewing, but it can be easily distinguished by the female genitalia, the sclerotized lamella antevaginalis and the corpus bursae with a pair of circular signa bearing tiny spines. Description Adult female ( Figures 1E,F ; 2C ). Head: frons and vertex dark brown, tinged with deep grey, occiput with greyish-dark brown. Antenna with scape white dorsally, dark brown basally and ventrally, shorter than diameter of eye; flagellum white, alternated with dark brown. Second segment of labial palpus pale brown with dark brown distally; third segment dark brown except whitish apex, shorter than the former. Thorax and tegula dark brown near head, pale brown near abdomen dorsally. Wing expanse 8.0– 8.5 mm . Forewing ground colour brownish yellow, tinged with dark-brown scales near base, at two-thirds length of costal and posterior margins; costal patch oblique, white at two-thirds of costa; nine or ten white spots edged by fuscous scales on lower half of wing and near apex; two near wing base, one under costal patch, five or six under cell before tornus, one after tornus, and one near apex; fringes golden yellow after two-thirds of forewing outer margin. Hindwing lanceolate; fringes greyish brown throughout. Leg dark brown ventrally; hind tarsi with white at entire of first, apical part of second and third segments, basal and apical parts of fourth and fifth segments; hind tibia pale brown with two pairs of pale-brown spurs at sub-apex and base. Male. Unknown. Female genitalia ( Figure 4 D–F). Apophysis posterioris two times longer than apophysis anterioris. Lamella postvaginalis characteristically shaped, caudal margin incised at middle, lateral margin folded, rarely setose at apex. Lamella antevaginalis sclerotized, well-developed as shown in Figure 4 . Ductus bursae broad, gradually narrowing, with many spines on left side caudally, twisted once at three-quarters of length. Corpus bursae small, with a pair of circular signa. Holotype . Female , Tam Dao Nat. Park , Vietnam , 450 m , 30 July 2006 , Park, Chae and Cuong. Paratypes . One female, Tam Dao Nat. Park , Vietnam , 100 m , 22 August 2002 , KT Park , slide gen. no. SNU-9043; one female, same locality, 950 m , 14 August 2005 , KT Park , gen. slide. no. SNU-9001 . Distribution Vietnam (North). Etymology The specific name of the new species is derived from the Greek di (= two) plus orbis (= circle), referring to a pair of circle-shaped signa.