396 INSECTA SAUNDERSIANA. 
base, attenuated towards the tip in the female; underside mostly tawny : 
legs yellow; hinder shanks black towards the base ; feet black, yellow at 
the base: wings pale gray with a slight tawny tinge along the fore border, 
and a slight brown hue at the tips; veins black, tawny at the base ; tips 
of the fourth and fifth longitudinal veins approximate ; cross-veins straight 
lower cross-vein slightly oblique: halteres yellow. Length of the body 2} 
lines; of the wings 5—6 lines. 
Brazil. 
This and the following species do not fully agree with the characters 
of Calobata, and may form a new genus. 
CaLoBATA? ARGENTATA. 
Nigra; caput argenteum; antenne ferruginee ; pectoris discus piceus, 
lateribus argenteis ; abdomen submetallicum ; pedes fulvi, femoribus 
anticis apice nigricantibus, tibiis posticis piceis aut nigris fulvo | 
cinctis, tarsis nigris basi fulvis ; ala fulvescente-subcineree. 
Black, shining: head with a silvery white covering in front and be- 
neath, clothed with white hairs beneath; epistoma and mouth yellow; 
palpi ferruginous: feelers ferruginous ; third joint tawny, slightly conical, 
full twice the length of the second; sixth black, slender, bare, nearly 
thrice the length of the third: disk of the breast pitchy ; sides silvery 
white: abdomen slightly metallic, almost linear, longer and narrower than 
the chest: legs tawny, slender; fore-thighs blackish at the tips; hind- 
shanks pitchy or black, with a tawny band in the middle; feet black, tawny 
at the base: wings pale gray with a slight tawny tinge which does not ex- 
tend to the hind border; veins black, tawny at the base; lower cross-vein 
straight, slightly oblique, very near the hind border: halteres very pale 
yellow. Length of the body 3}—8} lines; of the wings 7—74 lines. 
Brazil. 
