302 



Subfamily OCYDROMIIN^. 



Head : eyes in male contiguous, in female contiguous or not, 

 rarely narrowly separated in both sexes. Proboscis generally 

 shorter than head, if long, projecting directly or obliquely for- 

 wards ; palpi one-jointed. Antennae 3-jointed, with terminal 

 arista or 2-joiuted style, which latter may be aristiform. 

 Thorax more or less humped; metapleura bare or with short 

 hairs. Wings with axillary lobe well developed (except in 

 Leptopeza) ; 3rd longitudinal vein simple ; 4th simple or forked. 

 Discal cell present ; three or four posterior cells ; basal cells sub- 

 equal, anal cell not longer than 2nd basal. Lower branch of 5th 

 longitudinal vein meeting anal vein parallel with, perpendicular 

 to, or at an angle of 45 to hind margin of wing, making anal cell 

 truncate at tip or the anterior margin of it the longer ; anal vein 

 of varying length ; squamae very small or absent. 



This subfamily comprises smaller and more delicate species, 

 often of pale colour, of which the short proboscis is a principal 

 feature. 



Genus LEPTOPEZA, 

 Lemtopcza, Macquart, Soc. Sci. Lille, p. 143 (1827) (emend.}. 

 GENOTYPE, Ocydromiaflavipes t Mg. (Europe). 



Head almost as broad a.s thorax ; eyes occupying whole front 

 of head, contiguous in both sexes, rarely otherwise ; * facets of 

 uniform size. Antennae 3-jointed ; first two short, bristly ; 3rd, 

 though narrowed slightly at base, conical, bearing a long rather 

 thickened bare arista joined to tip of 3rd by a minute joint. 

 Epistome very narrow, -the eyes reaching the mouth-opening ; 

 proboscis Aery short. Thorax rectangular, strongly arched, with 

 minute discal bristles ; on the margin generally a notopleural, 

 postalar, and sometimes a supra-alar bristle, with other small 

 bristles or bristly hairs; scutellum with two or more marginal 

 bristles or stiff hairs ; metapleura with short fine hairs. Abdomen 

 slender, 8th segment small or hidden. Genitalia in male with 

 asymmetrical parts ;, in female forming a long, compressed, sword- 

 shaped ovipositor. Leys rather long and slender, hind pair 

 longest ; hind tibia? sometimes slightly thickened towards apex ; 

 sol't pubescence and various bristles on the legs. Wings with 

 auxiliary vein abbreviated, not reaching margin ; 3rd vein simple ; 

 anterior fork of upper branch of -4th vein indistinct or absent; 

 lower branch of eth vein strongly recurrent, parallel with hind 

 margin of wing ; anal vein shortened. 



Range. Europe, India, ]S T orth Africa, Cape Horn, North 

 America, Australia. 



Life-history unknown. 



* A narrow frons above in at least one European species (sph-enopiera), yet 

 the eyes contiguous below antenna-. 



