Rhotana pacata Zelazny, 2011

Zelazny, B. & Webb, M. D., 2011, 3071, Zootaxa 3071, pp. 1-307 : 83

Rhotana pacata Zelazny , sp. nov.

( Fig. 216)

Description. Forewings 2.1 times longer than wide, length in male 4.5–4.8 mm (mean = 4.7, n= 5). Colour stramineous; margins of facial carinae in front of eyes light orange; rostrum light brown, light orange, or stramineous (holotype); fore legs (missing in holotype) light orange-brown. Forewings colourless, in some parts powdered; a few brown spots in basal third: at apex of Cu (largest), in middle of Cu, two around base of M, one on M between bases of Ms1 and Ms2, and one at base of first subcostal sector; veins colourless, but apex of last subcostal sector and adjoining part of C orange. Hindwings colourless. Facial carinae contiguous at their bases; rostrum reaching hind coxae; subantennal processes and lateral carinae of pronotum well developed. Forewings with apical part of Sc straight; Sc+R fork well before middle of wing; Ms1 branches at apex of basal median cell, Ms1b touches apical part of Cu1, base of Ms1a connected to M by a cross-vein. Pygofer of male genitalia slightly produced at the sides. Aedeagus stem swollen just before apical part; apical part small, simple, with a dorsal longitudinal impression.

Etymology. The species name is a Latin adjective (pacatus, -a, -um = peaceful).

Type material. Holotype ♂ (forewing 4.5 mm), MALAYSIA : NORTH BORNEO; labels: 1) BRITISH N. BORNEO / W. Coast Residen-/ cy, Ranau, 500m / IX- 28 – X-7-1958 2) L.W. Quate / Light Trap ( BPBM) . Paratypes. BRUNEI, Labi / Bukit Teraja / 30km S.E. of Seria / 21–28.iii.1979, primary mixed/dipterocarp/forest, alt. 60m, light trap 2/50 and 1 m. above ground/ L. Sutton /B.M. 1985-50, 4 ♂ (fw. 4.7, 3x4.8) ( BMNH) .

Distribution. North Borneo.

Diagnosis. Rhotana pacata is externally indistinguishable from R. ornata Zelazny from the Philippines. The males can be recognized by the simple apical portion of the aedeagus, lacking any processes. R. pacata is also similar to R. ramosa sp. nov. from Sumatra, as well as to R. fera sp. nov. and R. tridentata sp. nov., both also from Borneo. It can be distinguished from these by the forewings having a vein between the base of Ms1a and M and also by the shape of the male aedeagus.