DIPTERA. 29 
TaBanus TiNcrus, Fem. 
Cinereus, thorace vittis duabus canis maculisque duabus fulvis ornato, 
pectore cano, abdomine fulvo, fasciis piceis ornato maculisque trigonis 
canis trivittato, ventre cinereo vitta picea ornato, antennis nigris basi 
fulvis, pedibus nigris, tibiis fulvis, alis cinereis basi et ad costam sub- 
fulvis. 
Body gray: covering of the head dull tawny above, white beneath 
where it is clothed with white hairs; a slender, shining, pitchy stripe on 
the crown : eyes dark bronze, parted above by a moderately broad interval ; 
all the facets very small: sucker black; lancets pale ferruginous ; palpi 
pale yellow: feelers black; first and second joints dark tawny, clothed with 
short black hairs, their tips angular; third joint ferruginous at the base, 
convex beneath, raised above into a slightly obtuse angle ; compound joint 
very slightly curved upward : chest adorned with two hoary stripes; a 
tawny spot on each side near the base of the wing, between which and the 
fore border of the chest there are a few black hairs: breast hoary, partly 
clothed with whitish hairs: abdomen dull tawny, slightly obconical, 
clothed with short tawny hairs, a little broader and very much longer than 
the chest; a broad pitchy band on the fore border of each segment from 
the third to the tip, which is black; segments from the third to the sixth 
adorned with three rows of hoary triangular spots which rest on the hind 
borders ; under side gray with a broad pitchy stripe ; hind borders of the 
segments pale tawny: legs black; hips and thighs tinged with gray, 
clothed with short whitish hairs; shanks tawny with black tips, fringed 
with short black hairs ; foot-cushions pale tawny: wings gray, with a tawny 
tinge at the base and along the fore border as far as the brand, which is 
brown; wing-ribs ferruginous; veins black, ferruginous at the base and 
along the fore border; curve of the tip cross-vein very slight ; scales gray, 
with tawny borders; poisers pitchy, with tawny knobs. Length of the 
body 114 lines ; of the wings 21 lines. 
St. Thomas ? 
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