Strongylophthalmyia darlingi Evenhuis, n. sp. (Figs. 7, 20)

Diagnosis. This species is similar to S. federeri, n. sp. in both possessing yellow on the head, mesonotum and anteriormost tergites, but can be easily distinguished from it based on the non-modified bacilliform male palpus (racquet-shaped in S. federeri).

Description. Lengths. Ƌ: body, 3.8 mm; wing, 3.2 mm. Male. Head (Fig. 7): elongate, longer than high; frons shining brown posterior to ocellar tubercle, yellowish brown to ptilinal suture; face yellow; gena yellow, silvery pollinose, row of short black hairs ventrally; occiput brown, yellowish brown posteroventrally; clypeus thin, yellow; palpus bacilliform, unmodified, with row of short brown hairs ventrally.

Antenna (Fig. 20): scape and pedicel yellowish brown; flagellomere subovoid, yellow, clothed with white hairs, with long, slender, slightly curved brown dorsal process densely clothed with decumbent white hairs, 1.5 times length of flagellomere; arista reduced to stump, short, one-fifth length of flagellomere, bare.

Thorax: shining; mesonotum and scutellum brown, yellow along anterior and lateral mesonotal margins, sparsely clothed with short white hair-like setulae; pleura yellow; anepisternum with scattered white hairs.

Wing: hyaline; vein R2+3 nearly straight, ending in costa before level of crossvein dm-cu; crossvein r-m at basal one-fourth of cell dm; crossvein dm-cu sloping toward CuA1; last section of CuA1 shorter than dm-cu; veins R4+5 and M1+2 parallel distally; halter white.

Legs: coxae and fore femora yellowish white, mid and hind femora yellow basally, brown apically; fore coxa with 3 long yellowish white hairs; fore femur with patch of 10–12 minute thorn-like spicules dorsally, with cluster of hairs forming thorn-like process subbasally, 3 very long, stiff orange-yellow hairs laterally at base; tibiae yellowish white; tarsi white.

Abdomen: tergites I–III yellowish; tergites IV–VI brown, with short sparse brown hairs, these hairs longest on tergites V–VI; sternites tan.

Male genitalia. Not dissected; epandrium and surstylus shining brown, with white hairs; cerci light brown, very narrow basally, flared and rounded apically, with long white hairs.

Female. Unknown.

Material examined. Holotype ♂ from INDONESIA: Sumatra: Aceh: Gunung Leuser National Park, Ketambe Research Station [3°41'N, 97°39'E], 1–28 Feb 1990, D.C. Darling, IIS 90 0 0 15 (ZMB). Holotype deposited in the Zoological Museum, Bogor.

Distribution. Indonesia (Sumatra).

Etymology. This species is name after Dr. Chris Darling, who collected the type specimen.