Phragmacossia laklong Yakovlev

Yakovlev, Roman V., 2014, Descriptions of three new species of Cossidae (Lepidoptera) from Vietnam, with an updated annotated checklist, Zootaxa 3802 (2), pp. 240-256 : 247-248

Phragmacossia laklong Yakovlev , sp. nov.

( Figs 6 , 14 , 16 )

Type material. Holotype: male, Vietnam, Gia Lai Prov., Kon Ka Kin N.[ational] P.[ark], K’Bang distr., Dak Roong Comm., top of mountain pass, N14º4286’; E108º36’, 16− 17.03.2012, H – 1210 m, leg. V. Zolotuhin ( ZISP); Paratypes: 6 males, same data and locality (RYB).

Description. Antennae bipectinate from base, distal third of antenna simple, filiform. Thorax covered with light-yellow hairs. Upper surface of abdomen covered with black hairs, apex of abdomen with light-yellow hairs. Forewing length 16–18 mm. Forewing rather broad, light-yellow with complex pattern. Costal edge with brownish field. Discal cell with whitish field. Two diffuse black spots with uneven edges situated in middle of discal cell and near apex. Skew black line with uneven edges begins from vein M1 (from place of its origin at discal cell) and continues to base of wing. Submarginal and marginal areas with thin net pattern consisted from thin wavy lines. Black spots situated near edge at veins. Fringe light-yellow. Hindwing light-yellow with suffusion of black scales. Fringe light-yellow.

Male genitalia.

Uncus rather short, broad, conic, with semispherical apex. Tegumen medium-sized. Branches of gnathos reduced. Valvae narrow parallel-sided, with semispherical tops and nearly smooth edges. Juxta stout, semispherical, with long narrow lateral dorsally directed processes. Saccus very small, semispherical. Aedeagus thick, short (1.5X shorter than valva). Vesica covered with small spicules, lateral surface with 2 band-like sclerotized cords.

Female unknown.

Diagnosis. There are five species of the genus recognized in the Oriental Region (except the new species): Phragmacossia Schawerda, 1924 ( Yakovlev 2011) : Phragmacossia fansipangi Yakovlev & Witt, 2009 (N. Vietnam) , Phragmacossia brahmana Yakovlev, 2009 (S. India, Tamil Nadu), Phragmacossia dudgeoni (Arora, 1974) ( Bhutan, India), Phragmacossia ihlei Yakovlev, 2008 ( Thailand, Prov. Tak) and Phargmacossia kiplingi Yakovlev, 2011 ( Sri Lanka). The new species has can be distinguished by the following characters: comparatively small size, the more pronouncedly variegated pattern of the wings, the small and stout uncus, and the nearly even valve (rather strongly curved in other species of the genus).

Etymology. Named after Lak Long Kuan, a mythological character, semi-dragon, semi-human, ancestor of the Vietnamese.

Figures

FIGURES 1 – 10. Adults of Cossidae, dorsal aspect; all specimens shown are from Vietnam. 1, Paracossus indradit Yakovlev. 2, Paracossus griseatus. 3, Paracossus zyaung Yakovlev sp. nov., holotype. 4, Paracossus zyaung Yakovlev sp. nov., paratype. 5, Aholcocerus ihleorum Yakovlev & Witt. 6, Phragmacossia laklong Yakovlev, sp. nov., holotype. 7, Butaya auko Yakovlev sp. nov., holotype. 8, Bergaris solovievi Yakovlev. 9, Skeletophyllon puer Yakovlev. 10, Azygophleps scalaris (Fabricius, 1775).

FIGURES 11 – 15. Male genitalia of Cossidae. 11, Paracossus zyaung Yakovlev sp. nov. (holotype). 12, Paracossus indradit Yakovlev. 13, Paracossus griseatellus Yakovlev. 14, Phragmacossia laklong Yakovlev sp. nov. (holotype). 15, Butaya auko Yakovlev sp. nov. (holotype).

FIGURES 16 – 18. Habitats and type localities. 16, Habitat at the type locality of Paracossus zyaung Yakovlev sp. nov. near the Kon Loc village in K'Bang District (photo by Vadim Zolotuhin). 17, Habitat at the type locality of Phragmacossia laklong Yakovlev sp. nov. and Butaya auko Yakovlev sp. n. near the Dak Roong Commune (photo by Vadim Zolotuhin). 18, Distribution map of the region showing the type localities of new species.