Rhotana aperta Zelazny, 2011

Zelazny, B. & Webb, M. D., 2011, 3071, Zootaxa 3071, pp. 1-307 : 72

Rhotana aperta Zelazny , sp. nov.

( Fig. 200)

Description. Forewings 1.7 times longer than wide, length: male 3.5–4.0 mm (mean = 3.8, n= 12), female about 3.9 mm. Colour stramineous to light brown; mesonotum dark brown, but scutellum, stramineous; legs stramineous, but tarsi dark brown. Forewings light brown, interrupted by clear areas, not powdered; a dark brown dot around last subcostal sector; a dark mark next to hindmargin, distad of claval tip; veins stramineous to light brown, but most veins orange to red in apical third. Hindwings with a brown mark around Ms1 and Ms2 containing a central, clear area; apex of clavus with a small mark; middle of hindwings and anterior tip faintly infuscated. Facial carinae contiguous up to lower margin of eyes; rostrum not reaching hind coxae; subantennal process and lateral carinae of pronotum little developed. Forewings with Sc+R fork well before middle of wing; Ms1 branched at end of its basal third; Ms1b merging for a short section with apical part of Cu1, a small triangle at base of Ms1. Pygofer of male genitalia with a short, pointed, lateral projections. Genital styles slightly widening towards end which is obliquely truncate; proximal dorsal process short, a small hump at its base; distal dorsal process elongated. Aedeagus with ventral side of apical part entire, dorsal side with foliaceous carinae, not reaching tip; tip pointed.

Etymology. The species name is a Latin adjective (apertus, -a, -um = uncovered).

Type material. Holotype ♂ (forewing 3.9 mm, body 2.4 mm), MALAYSIA: NORTH BORNEO; labels: 1) NORTH BORNEO ( SE)/ Tawau , Quoin Hill / Cocoa Res. Sta./ 3.X.1962 2) Primary Forest / Y. Hirashima / BISHOP ( BPBM) . Paratypes. NORTH BORNEO ( SE); Forest Camp , 19 km N. of Kalabakan, 60 m, 16.XI.1962, 1 ♀ (fw. 3.9), Y. Hirashima, Malaise trap; same locality as holotype, 3. VII – 3.X.1962, 12 ♂ (fw. 3.5, 3x3.6, 3x3.9, 4x4.0), 1 ♀ (fw. 3.9), Y. Hirashima and H. Holtmann, light and Malaise trap (all BPBM) .

Distribution. North Borneo.

Diagnosis. Rhotana aperta shows some similarities to R. cribraria sp. nov., also found in Borneo, and to R. torrevillasi Zelazny from the Philippines. It can be recognized by the hindwings having a conspicuous brown mark with a round opening, by the basal parts of Sc, R, and M on the forewings being light brown, and by the male aedeagus having a pointed tip and lacking a lateral pointed process near its end.