318 INSECTA SAUNDERSIANA, 
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 the 
second ; sixth feathered to the tip, stout at the base, more than twice the 
length of the third : chest with 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; prebrachial 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: alule whitish with yellow borders: halteres tawny. 
Length of the body 44 lines; of the wings 9 lines. 
United States. 
DeExIA INSOLITA. 
Cinerea; caput argenteum; thorax nigro septemvittatus ; scutellum et 
abdomen atra; antenne fulve; pedes nigri; ale subcineree, bast 
fusce. 
Fem. 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 ; fovee 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, 
thichly beset with black bristles: abdomen obconical, a little broader but 
not longer than the chest: legs black: wings pale gray, dark brown near 
the base ; veins tawny at the base and along the fore border, clouded with 
pale brown; prebrachial 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: alule gray, with pitchy borders : 
halteres pitchy. Length of the body 45—7 lines; of the wings 11—16 
lines. 
Brazil. 
