DIPTERA. 273 
facialia with a row of bristles which do not extend much above the epi- 
stoma; feelers ferruginous; third joint black, slightly convex above and 
beneath, obliquely truncated at the tip, shorter and deeper than the second: 
scutcheon tawny ; tip of the abdomen clothed with orange hairs : legs tawny ; 
thighs black: wings slightly gray, tawny at the base; prebrachial vein 
forming a slightly acute angle at its flexure, near which it forms an obtuse 
angle ; lower cross-vein very slightly waved: alule dingy white. Length 
of the body 6 lines; of the wings 13 lines. 
East Indies. 
TacHIna virtara, Fem. 
Nigra; caput fulvescens ; thorax fuscescens ; scutellum et abdomen fer- 
ruginea, hoc flavo vittatum et apice fasciatum; ale fusca, bast 
subfulve. 
Black: head with a tawny covering, thickly clothed behind and 
beneath with pale yellow hairs; frontal region with two thin rows of 
black bristles ; frontalia ferruginous; interfrontalia indistinct; face 
pale shining yellow; each of the facialia with a row of black bristles 
not extending above the epistoma, which is very prominent: feelers black ; 
first and second joints ferruginous; third nearly elliptical, very little 
shorter and much deeper than the second: chest with a brown cover- 
ing : scutcheon and abdomen ferruginous, the latter with a slender, pale 
yellow, dorsal stripe, and near the tip with a broad pale yellow band : wings 
brown, with a tawny tinge at the base ; veins black, tawny towards the base ; 
prebrachial vein forming a right angle at its flexure, near which it forms an 
obtuse angle ; lower cross-vein very slightly waved: alule gray, with yel-~ 
low borders. Length of the body 5 lines; of the wings 1 lines. 
Columbia. 
Tacuina atra, Mas. 
Nigra; caput albidum; thorax canescens, nigro trivittatus; antenne 
nigra@, basi et subtus ferruginee ; ale cinerea. 
Black: head with a white covering, clothed beneath and behind with 
whitish hairs; crown gray; frontalia ferruginous, widening from the eye- 
lets to the feelers where they are paler; epistoma very slightly prominent: 
am 
