318 INSECT A SAUNDEHSIANA. 



and second joints red ; third short, linear, rounded at the tip, red at the 

 base, not nearly reaching the epistoma, about twice the length of ihe 

 second ; sixth feathered to the tip, stout at the base, more than twice the 

 length of the third : chest wiili four black stripes, the inner pair slender, 

 almost contiguous : abdomen obconical, with paler reflections, narrower and 

 a little longer than the chest : legs black; shanks ferruginous : wings gray-, 

 brownish at the base ; veins black ; praebrachial vein forming a slightly 

 obtuse angle at its flexure, slightly bent inward along half the length from 

 thence, then straight for a space, next emitting a little branch, between 

 which and the tip it has two curves ; lower cross-veins with the two curves 

 which are slight: alulae whitish with yellow borders: halteres tawny. 

 Length of the body A\ lines; of the wings 9 lines. 



United Stales. 



Dexia insolita. 



Cinerea ; caput argenteum ; thorax nigra septemvittatus ; scutellum et 

 abdomen atra ; antenna fulvce ; pedes nigri ; altc subcinerece, bast 



fuSC(E. 



Fern. Cinereous : head silvery white, clothed behind and beneath with 

 white hairs ; frontalia deep black, with a row of bristles along each side, 

 widening from the eyelets to the feelers ; facialia without bristles ; epistoma 

 slightly prominent ; foveae not extending beyond half the length to the 

 epistoma : mouth black, shining, with a ferruginous tip ; palpi yellow, very 

 slender : feelers tawny ; second joint partly black ; third linear, rounded at 

 the tip, much less deep than the second and nearly twice its length ; fourth 

 and fifth very short ; sixth black, feathered to the tip with long hairs : 

 chest with seven interrupted black stripes : scutcheon and abdomen deep black, 

 thickly beset with black bristles : abdomen obconical, a little broader but 

 not longer than the chest : legs black : 7cings pale gray, dark broivn near 

 the base ; veins tawny at the base and along the fore border, clouded with 

 pale brown; praebrachial vein forming a slightly obtuse angle at its flexure, 

 straight from thence till near the tip where it is slightly inclined inward, 

 approaching near the tip of the cubital vein ; lower cross-vein with the two 

 usual curves which are rather deep : alula gray, with pitchy borders : 

 halteres pitchy. Length of the body 4^—7 lines; of the wings 11 — Ifi 

 lines. 



Brazil. 



