LIST OF DIPTERA. 707 



slender, tapering from the base to the tip, full twice the length of 

 the third feeler-joint, its first and second joints tawny; second joint 

 short, hardly longer than the first : chest brownish tawny, clothed 

 with tawny hairs, beset with black bristles ; sides, breast, and scutch- 

 eon tawny ; scutcheon armed with black spines : abdomen bright 

 tawny, adorned along the back with a row of black triangular spots, 

 clothed with tawny hairs, armed with black spines, which occupy the 

 hind borders of the segments, and are most numerous at the tip : 

 legs tawny, clothed with black hairs and bristles ; claws and foot- 

 cushions yellow; tips of the claws black : wings gray, tawny at the 

 base ; scales yellowish white ; wing-ribs and veins tawny ; tip cross- 

 vein forming hardly less than a right angle with the fourth longitu- 

 dinal vein, which sends forth a very short stump beyond it, much 

 curved near the base, straight from thence to the tip, which joins the 

 border at some distance above the tip of the wing ; lower cross-vein 

 straight for half the length, very slightly curved outward from 

 thence to the tip. Length of the body 6 lines ; of the wings 12 

 lines, 

 o. Venezuela. From Mr. Dyson's collection. 



Group X. 



Third joint of the feelers twice the length of the second, linear, 

 truncated at the tip ; first and second joints of the bristle very 

 short. 



Tachina finitima, n. s. Fusca, capite albido, thoracis vittis quatuor 

 obscurioribus, lateribus pectore scutelloque fulvis, abdominis 

 apice ferrugineo, antennis pedibusque fulvis, alis cinereis basi 

 fulvis. 



Head yellowish white, dark tawny, with a hoary stripe between 

 the eyelets and the feelers, clothed beneath with yellowish white 

 hairs, beset above and in front with a few black bristles ; epistoma 

 prominent ; no bristles on the sides of the face ; sucker tawny, 

 clothed with short pale yellow hairs ; palpi yellow, long, beset with 

 short black bristles : feelers tawny, as long as the face ; third joint 

 linear, truncated at the tip, twice the length of the second joint ; 

 bristle black, naked, more than twice the length of the third feeler- 

 joint ; first and second joints rather long, equal in length ; third 

 j oint stout for about half its length, thence to the tip very slender : 

 chest brown, clothed with tawny hairSj beset with black bristles, 

 adorned with four darker, slender indistinct stripes ; sides, scutcheon, 

 and breast tawny : scutcheon armed with black spines : abdomen 

 bright tawny, ferruginous towards the tip, broader and much longer 



