Danielithosia wooshini Bae & Bayarsaikhan, sp. n.

(Figs. 1, 4)

Type materials. Holotype: Male, Cambodia, Bokor (N10 ̊3745.60, E104 ̊0518), 14-I-2013 (Bae, Ju, Park & Lee), Slide No. INU-1267. Paratypes: 1 male, Cambodia, Bokor (N10 ̊3652, E104 ̊544), 13-VII-2012 (Bae, Ju, Le, Park & Lee), Slide No. INU-1033; 1 male, Cambodia, Samkos (N 12 ̊12 47.8, E102 ̊54 23.8), 854 m, 22-XII-2014 (Bae et al.), Slide No. INU-1392.

Description (Fig. 1). Wingspan 19–20 mm in male. Head with grayish scales; frons pale grayish; labial palpus dark brownish, not extending beyond frons; antenna dark brownish. Patagium and tegula dark brownish gray. Legs pale grayish. Ground color of forewing pale brownish gray; basal 1/3 of costal margin gray yellow; fringe yellow. Hindwing with ground color sordid yellow, fringe yellow. Female unknown.

Male genitalia (Fig. 4). Uncus stout, with small spine at top, covered with hairs; cucullus narrow, tapering towards apex, costal edge of both cucullus slightly convex. Sacculus asymmetrical, right sacculus broader than left sacculus, with curved apical process of both sacculus. Juxta stout, extanding beyond uncus, bented at distal end, apical process of juxta not bifurcated. Aedeagus stout, slightly sclerotized at distal end. Vesica with one (Slide No. INU-1267, INU-1033) to four (Slide No. INU-1392) cone-shaped cornutus, one spine-shaped cornutus, and field of sclerotized spiniculi

Diagnosis. This species is similar to members of immaculata group by general appearance, which including: D. immaculata (Butler, 1880) from Japan, D. mesospila (Fang, 2000) from China, D. fuscipennis Dubatolov, Kishida & Wang, 2012 from China, and D. zolotuhini Dubatolov, 2012 from Vietnam. All species of immaculata group have asymmetrical valva and apical process of juxta. However, D. wooshini sp. n. is differs from members by having more broad, rectangular left sacculus; not bifurcated juxta; vesica with one to four cone-shaped cornutus, and one spine-shaped cornutus. As for other members, left sacculus slender, elongate, juxta asymmetrically bifurcated, and vesica with seven cornuti in D. immaculata; left sacculus pecular broad (from original description), juxta asymmetrically bifurcated, and vesica with three cornuti in D. mesospila (Fang, 2000); left sacculus triangular, juxta asymmetrically bifurcated, and vesica with two cornuti in D. fuscipennis; left sacculus stout, slightly concave, juxta asymmetrically bifurcated, and vesica with five cornuti in D. zolotuhini.

Distribution. Cambodia (Bokor, Samkos).

Etymology. The species is dedicated to Professor Woo-Shin Lee (Seoul National University), leader of the International Cooperation Unit on Biodiversity and Environmental Conservation (ICUBEC), Korea.