DIPTERA. 431 
CuLEX PERTERRENS, Few. 
Fusca, sat valida ; proboscis testacea, apice fusca; pectus testaceum ; 
abdomen purpurascens, fasctis ventreque testaceis ; pedes testacei, 
validi, pubescentes, femoribus tibiisque apice tarsisque fuscis; ale 
cinerea, venis nigricantibus subciliatis ; halteres testacet. 
Brown, rather stout. Proboscis testaceous, long, brown towards the 
tip. Antenne brown, very little shorter than the proboscis. Pectus 
testaceous. Abdomen purplish, with a testaceous band on the fore bor- 
der of each segment; under side testaceous. Legs testaceous, stout, 
pubescent; femora and tibie brown towards the tips; tarsi brown. 
Wings gray; veins blackish, slightly ciliated. Halteres testaceous. 
Length of the body 4 lines ; of the wings 6 lines. 
South America. 
CoLex riavicosra, Fem. 
Fulva ; proboscis testacea, apice nigra; palpi testacei ; antenne fusce, 
basi testacee; pedes robusti, testacei, femoribus tibiis et tarsorum 
articulis apice nigris, tibiis posticis subpilosis; ale subcineree, 
apice abscuriores, apud costam flavescentes, venis fuscis ciliatis. 
Tawny. Proboscis and palpi testaceous. Proboscis slender, straight, 
black at the tip. Antenne brown, testaceous at the base. Legs long, 
stout, testaceous ; tips of the femora, of the tibie and of the joints of the 
tarsi black ; hind tibie thinly clothed with short hairs; hind tarsi, ex- 
cepting the metatarsus, black, the joints testaceous at the base. Wings 
grayish, darker at the tips, yellowish along the costa; veins brown, 
ciliated. Length of the body 3} lines; of the wings 6 lines. 
Amazon Region, 
