Meleonoma dorsolobulata Wang

Yin, Aihui & Wang, Shuxia, 2016, Taxonomic study of the genus Meleonoma Meyrick from Thailand (Lepidoptera, Gelechioidea), ZooKeys 571, pp. 133-141 : 135-137

Taxon classification Animalia Lepidoptera Cosmopterigidae

Meleonoma dorsolobulata Wang sp. n. Figs 2, 7

Type material.

Holotype: ♂, Thailand: Loei Province, Phu Luang Wildlife Sanctuary, 8-14.x.1984, ca. 700-800 m, leg. Karsholt, Lomholdt & Nielsen, genitalia slide No. ZMUC-NK047. Paratype: 1 ♂, same data as holotype.

Diagnosis.

This new species can be separated easily from its congeners by the sacculus having a lobate process at base dorsally in the male genitalia.

Description.

Adult (Fig. 2): Wing expanse 9.0-10.0 mm. Head yellow, tinged with greyish brown on vertex. Labial palpus yellow, with wide irregular brown rings at middle and at apex of second segment, as well as at 2/3 of third segment. Antenna yel low, dorsal surface black on scape, ringed with brown on flagellum. Thorax and tegula brown. Forewing yellow, with brown scales throughout, concentrated along costal 2/3, forming a narrow streak along basal 1/3, and forming a spot at middle; large blackish distal blotch from distal 1/5 of costal margin obliquely inward to end of fold; cell with small black spot at base and at middle, the former indistinct, with two black dots at end of cell, placed one above another, the lower one merged with large distal blotch, but distinct; cilia blackish brown. Hindwing and cilia grey. Legs whitish yellow; tibiae and tarsi greyish brown on outer surface, tibiae yellow at middle and at apex, tarsi yellow at apex of each segment.

Male genitalia (Fig. 7): Uncus nearly as long as saccus, basal half evenly wide, distal half gradually narrowed to blunt apex. Valva evenly wide from base to approximately 3/4, distal 1/4 slightly narrowed to rounded apex, upturned; costa concave medially; ventral margin straight basally, arched outward distally. Sacculus broad, subtriangular, apically produced to a hairy papillary process; large process arising from base of its dorsal margin, lobate, narrow basally, ovally inflated distally. Saccus triangular, wide at base, narrowed to apex. Juxta thin, broad V shaped. Aedeagus shorter than valva, with dense microspines on inner surface in distal 2/5, with a club-shaped process distally, approximately 1/3 length of aedeagus.

Female unknown.

Distribution.

Thailand.

Etymology.

The specific name, an adjective, is derived from the Latin dorso- (dorsal) and lobulatus (lobate), referring to the process at base of the dorsal margin of the sacculus.