A new Synersaga species from Cambodia (Lepidoptera, Lecithoceridae), with a world catalogue of the genus Author Park, Kyu-Tek Author Bae, Yang-Seop text ZooKeys 2012 187 1 7 http://dx.doi.org/10.3897/zookeys.187.2660 journal article http://dx.doi.org/10.3897/zookeys.187.2660 1313-2970-187-1 Synersaga mondulkiriensis sp. n. Figs 112 Type material. Holotype ♂ - Cambodia, Prov. Mondulkiri, Seima Biodiversity Conservation Area, 12°57'N , 107°10'E , 3-8 July 2009 (Bae & Chae), gen. slide no. CIS-6072/Park. Paratype - 3♂, 1♀, same locality, 7 Oct. 2010. Diagnosis. This new species is similar to Synersaga pseudocathara from Myanmar, and Synersaga kuni and Synersaga nigriptera from Vietnam in the external and male genitalic characters. It can be distinguished from them by the shape of cucullus and the caudal processes of the juxta in the male genitalia. The caudal processes of the juxta of the new species are similar to those of Synersaga nigriptera , but longer and arched inwardly, and the distal portion of the cucullus is more or less clavate. Description. Adult (Figures 1, 2, 3). Wingspan, 17-18 mm. Head and thorax dark fuscous dorsally. Antenna dark fuscous throughout, relatively thick. Second segment of labial palpus fairly thickened, dark fuscous on outer surface with orange white apex , orange white on inner surface; 3rd segment slender, as long as 2nd segment, orange white all around. Forewing covered with dark fuscous scales throughout; two blackish discal spots well developed: one in middle, the other larger one at end of cell; apex rounded; termen slightly concave medially; venation with R1 arising from middle of cell; R2 nearer to R3 than R1 at base; R3 free; R4 and R5 stalked for basal 3/5 length; R5 reaching just beyond apex; M3 arising from half between M2 and CuA1+2 at base; CuA1 and CuA2 stalked for basal 1/5. Hindwing broader than forewing, pale brownish orange; apex more or less obtuse; termen sinuate; fringe concolorous, with narrow orange white basal line; venation with M3 and CuA1 short stalked. Hind tibia clothed with orange gray scales. Male genitalia (Figures 4, 5, 6, 7). Uncus broad, short, obtuse, not exceeding basal stalk of gnathos, with small median lobe on caudal margin. Median process of gnathos strongly bent beyond middle, with acute apex. Valva broad basally, with triangular process near base on costa; costa gently concave; ventral margin gently arched outward in basal half; cucullus elongate, broadly expanded with round outer margin; dense long setae in basal half of cucullus, fairly setose beyond. Juxta with caudal processes long, gently arched inward, while the processes in Synersaga nigriptera nearly straight, clavate. Aedeagus gently curved, shorter than valva+cucullus, with finely dentate along ventral and dorsal margins apically; cornuti consist of a series of numerous needle-like cornuti. Abdominal segments in Figures 8 and 9. Female genitalia (Figures 10, 11, 12). Similar to those of Synersaga nigriptera . Caudal margin of eighth abdominal sternite with deep Y-shaped medial emargination. Dorsal surface of ostial plate with dense spinules; caudal margin of ostium bursae concave. Antrum weakly sclerotized, cup-shaped. Ductus bursae coiled twice, slightly longer than corpus bursae, nearly same width throughout, with several needle-like spines internally. Corpus bursae elongate; signum a semiovate plate denticulate throughout. Figures 1-9. Synersaga mondulkiriensis sp. n., holotype 1 adult, holotype 2 head in dorsal view 3 labial palpus 4 male genitalia 5 close-up of juxta 6 aedeagus 7 close-up of cornuti 8 1st-4th abdominal segments 9 close-up of 6 th- 8th abdominal segments. Scale bar: 1 mm. Figures 10-12. Female genitalia of Synersaga mondulkiriensis sp. n. 10 genitalia 11 8th segment 12 genitalia. Scale bar: 1 mm. Distribution. Cambodia (Mondulkiri). Etymology. The species name is derived from the type locality.