376 INSECTA SAUNDERSIANA. 
stripes : abdomen black, linear, narrower but not longer than the chest: 
legs tawny ; hips ferruginous ; thighs thick, with ferruginous stripes; hind- 
thighs with yellow reflections; shanks curved ; posterior shanks ferrugi- 
nous; hind-shanks rather broad ; feet yellow with pitchy tips: wings dark 
gray, partly clouded with brown along the fore border ; fore border tawny 
towards the base ; veins black, tawny at the base: halteresluteous. Length 
of the body 4 lines; of the wings 8 lines. 
Columbia. 
Genus SEPSIS, Fallen. 
In the European species of Sepsis and of Nemopoda, the antenne do 
not extend to the epistoma, but they reach it in the following species and 
also in the genera Michogaster and Omalocephala. 
SEPsIS TERMINALIS. 
Testacea ; antenne apice picee ; abdomen nigrum, apice attenuatum ; fe- 
mora spinosa ; tibie postice fusce ; ale limpide, apicibus fuscis, 
venis transversis fusco marginatis. 
Testaceous, slender: head almost as broad as the chest: two eyelets 
close together on the crown, surrounded with black; third much in 
advance, also surrounded with black: third joint of the feelers pitchy 
above towards the tip which is rounded, more than twice the length 
of the second, extending to the epistoma; sixth joint black, very 
slender, thinly feathered with short hairs, testaceous at the base: hind- 
chest pitchy ; abdomen black, petiolated, tapering and attenuated towards the 
lip: legs testaceous; thighs armed beneath with spines ; feet towards the 
tips and hind-shanks brown : wings colourless with brown tips ; veins tawny ; 
middle eross-vein and those towards the base clouded with brown; halteres 
pale yellow. Length of the body 4} lines; of the wings 6 lines. 
Brazil. 
Sepsis pistincta, Mas. 
Ainea ; caput, antenne, tarsi, femora postica basi et tibie antice fulva ; 
ale limpida, basi costaque nigra, apice subnebulose, 
Brassy ; head tawny ; crown metallic green: mouth tawny: feelers 
tawny; third joint almost elliptical, extending to the epistoma; sixth 
