The Empididae collected on the 1954 an d 1961-62 British Museum Expeditions to Nepal are systematically treated. Thirty-eight new species, 1 new subspecies, representing 18 genera are described and their relationships discussed. A lectotype is designated for Hemerodromia xiphias Bezzi.
K.G.V. SMITH Drapetis (Elaphropeza) kala sp. n.$. Head shining black, lightly dusted behind, but shining on a very broad postocular band on upper two-thirds. Occiput with sparse short yellow hairs. Frons about twice width of an ocellus above, narrowing to slightly more than width of an ocellus below. Face linear. Ocellar bristles rather weak, crossing, with a pair of weak hairs behind. A pair of strong yellow outer vertical bristles and a weak inner pair. Antennae with first and second segments yellow ; third segment black with base somewhat yellowish, short, less than twice as long as broad at base. Arista black, pubescent and a little less than twice antennal length. Proboscis short, brown. Palpi yellow, about two-thirds length of proboscis.Thorax shining black (a very light dusting is evident under higher magnification), with yellow bristles. Acrostichals absent ; dorsocentrals uniserial, the 3 or 4 posterior bristles strong ; a notopleural and a supra-alar present. Scutellum shining black on disc with margins lightly dusted and with a pair of crossing apical bristles.Abdomen yellowish at base, but otherwise shining black, with very light microscopic dusting and some rather long dark hairs.Legs slender, yellow except for last tarsal segment on all legs. Preapical anterior bristle distinct on middle femora. Middle tibiae with an anterodorsal bristle at middle. Hind tibiae with two anterodorsal bristles, a little closer to each other than either is from the ends of the tibia; apical process brownish, short and broad, but pointed.Wings clear with yellow veins. Third costal section about twice length of second section. Halteres yellow.
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