Meleonoma bilobata Wang

Yin, Aihui & Wang, Shuxia, 2016, Taxonomic study of the genus Meleonoma Meyrick from Thailand (Lepidoptera, Gelechioidea), ZooKeys 571, pp. 133-141 : 137-138

Taxon classification Animalia Lepidoptera Cosmopterigidae

Meleonoma bilobata Wang sp. n. Figs 4, 9

Type material.

Holotype: ♂, Thailand: Chieng Mai Province, 325 m, 15-30.x.1984, leg. Karsholt, Lomholdt & Nielsen, genitalia slide No. ZMUC-NK046.

Diagnosis.

This new species can be distinguished from its congeners in the male genitalia by the sacculus being apically bilobed.

Description.

Adult (Fig. 4). Wing expanse 9.0-10.0 mm. Head yellow. Labial palpus yellow. Antenna pale yellow, without distinct dark rings. Thorax and tegula yellow, tegula with brown scales at base. Forewing yellow, with brown and ochreous brown scales, with denser brown scales along costal margin, with denser pale ochreous brown scale along ventral margin; costal margin with a dark brown spot at base, with a dark brown diffusion beyond middle; large distal blotch black, from end of fold obliquely outward to apex; cell with small black spot at middle and at end of cell; fold with a small black dot at middle; cilia blackish brown. Hindwing and cilia grey. Legs whitish yellow; fore and mid legs with tibiae and tarsi blackish brown on outer surface, hind leg greyish brown; tarsi yellowish white at apex of each segment.

Male genitalia (Fig. 9). Uncus approximately twice as long as saccus, wide and triangular basally, gradually narrowed to pointed apex. Valva evenly wide except slightly narrowed at base, apex blunt; ventral margin with clustered long setae at 1/3. Sacculus wider than valva at base, shorter than saccus, apically concave at middle, forming two lobes: dorsal lobe longer, fingerlike, ventral lobe a rounded process. Saccus broad triangular, length same as height of tegumen. Aedeagus approximately 2/3 length of valva, strong and straight, with several tiny teeth along dorsal 1/6; cornutus a tiny spine, originating from a large sclerotized rectangular plate.

Female unknown.

Distribution.

Thailand.

Etymology.

The specific name is derived from the Latin adjective bilobatus (bilobate), referring to the apically bilobate sacculus.