Strongylophthalmyia inundans Evenhuis, n. sp.

Strongylophthalmyia inundans Evenhuis, n. sp. (Figs. 25, 67) Diagnosis. This new species is similar to S. malayensis, n. sp. and can easily be distinguished from it by having the dorsal antennal process much longer than the head (much shorter than head length in S. malayensis) and lacking a subbasal thorn-like cluster of hairs ventrally on the fore femur. Description. Lengths. Ƌ: body, 3.1 mm; wing, 2.9 mm. Male. Head: globular, frons shining black, yellow just above ptilinal suture; face yellow; gena yellow, silvery pollinose, row of short white hairs ventrally; occiput black, brown posteroventrally; clypeus thin, brown; palpus bacilliform, unmodified, clothed with minute yellow hairs; proboscis brown. Antenna (Fig. 25): yellow; flagellomere ovoid, clothed with white hairs, with very long, slender, slightly sinuous brown dorsal process densely clothed with white hairs, four times length of flagellomere; arista short, onehalf length of dorsal process, styliform, bare. Thorax: shining brown; mesonotum and scutellum sparsely clothed with short hair-like setulae; katepisternum with white hairs ventrally near mid coxa. Wing: hyaline; vein R2+3 nearly straight, ending in costa before level of crossvein dm-cu; crossvein r-m at basal one-third of cell dm; veins R4+5 and M1+2 slightly converging distally; crossvein dm-cu sloping to CuA1; last section of CuA1 to wing margin shorter than dm-cu; halter white. Legs: yellow; fore coxa with 2 long yellowish white hairs; fore femur (Fig. 67) dorsally with 6–7 black thornlike spicules at base, ventrally with subbasal thorn-like cluster of yellowish hairs; mid femur yellow; hind femur yellow, brown apically; fore tibia white; mid and hind tibiae brown basally, white apically; tarsi white. Abdomen: tergites I–II brown medially, dark brown laterally; tergites III–VI dark brown, with short sparse brown hairs, these hairs longest on tergites V–VI; sternites brown. Male genitalia. Not dissected; epandrium and surstylus shining brown, with white hairs; cerci yellow, narrow basally, flared and rounded apically, with admixed black white hairs apically. Female. Unknown. Material examined. Holotype ♂ (BPBM 17816) from PHILIPPINES: [Luzon Island:] Camarines Sur Province: Mt Isarog [13.650°N, 123.389°E], 500 m, 4 Apr 1963, H.M. Torrevillas (BPBM). Holotype deposited in the Bishop Museum. Remarks. Hermani Torrevillas, who collected the type specimen, gave a short account of this collecting trip, which was near a Very High Frequency (VHF) relay station on the volcanic cone of Mt. Isarog (Torrevillas 2011: 109). He tells of just escaping, in the last seconds before it hit, a three-meter tall flash flood that ripped through their camp, which was alongside a river. He and the specimens collected were barely saved as he grabbed them and scampered up to higher ground. Distribution. Philippines. Etymology. This species epithet derives from the Latin “ inundans ” = “flood”; referring to this specimen surviving the flash flood during the collecting trip that secured its capture.Published as part of Evenhuis, Neal L., 2016, World review of the genus Strongylophthalmyia Heller (Diptera: Strongylophthalmyiidae). Part I: Introduction, morphology, species groups, and review of the Strongylophthalmyia punctata subgroup, pp. 201-243 in Zootaxa 4189 (2) on page 224, DOI: 10.11646/zootaxa.4189.2.1, http://zenodo.org/record/16587