c^ - f % o^o 

 94. 

 LAPHRIA NIGRA. 



Order Diptera. Fam. Asilidse JLat., Leach. 



Type of the Genus Laphria gilva Linn. 



Laphria Vab., Lat., Meig. Asilus Linn. Erax Scop. 



AntenncB approximating, porrected, inserted near the middle a( 

 the face, scarcely longer than the head, 3-jointed, Ist joint short, 

 2nd shorter, 3rd long obovate, naked, slender at the base, con 

 siderably dilated in the middle (3). 



Lcihrum short, somewhat membranaceous at the apex^ atte- 

 nuated (lb). 



Tongue very long, horny, acute, grooved beneath, hairy on the 

 upper side excepting at the apex and base (c) . 

 Mandibles none. 



Maxillce horny, nearly as long as the tongue, very acute di- 

 lated towards the base, ciliated internally (e). 

 Palpi short cylindric, hairy, 2-jointed (f). 

 Lip large, compressed, dilated towards the base, bilobed, with a 

 small process arising between the lobes, very horny, hairy at the 

 base and apex, hollow, open above, receiving the tongue and 

 maxillse (g). 

 Head transverse, as broad as the thorax, attached hij a distinct neck. 

 Proboscis exserted. Clypeus slightly produced, bearded (2). Eyes 

 distant in both sexes. Ocelli none ? Thorax gibbous. Sculellum 

 rounded. Abdomen rather long and cylindric, somewhat ovate in the 

 females, terminal joint produced and inflected in the males. Wings 

 incumbent with about 1.5 cells, 4 perfect cells upon the posterior 

 margin, submarginal cell with a long pedicle at the apex, ist mar- 

 ginal cell narrowed, extending only to the middle. Halteres naked. 

 Feet robust long. Thighs incrassated in the males. Tibiae, hinder 

 arcuated unarmed. Tarsi ^-jointed, hairy, 1st joint the longest (8 

 afore leg). Pulvilli and Claws 2, long and distinct, with a bristle 

 arising from the centre at the base (8 a). 



Nigra Meig. Syst. Bes. v. 2. p. 293. n.W. 



Black, shining, hairy. Clypeus covered with yellowish silvery 

 hair, whiskers yellowish, exterior margin of eyes silvery. Thorax 

 with a slight tinge of blue, the sides and a short line on each side 

 the anterior part gray. Abdomen with a cupreous tinge, pu- 

 bescent with ferruginous hairs, incisures, especially on the sides, 

 aureous with hairs. Wings stained brown, transparent at their 

 base. Halteres ochraceous. Tibiae aureous with pubescence. 



In the Cabinets of Mr. Stephens and the Author. 



