Descriptions of Diptera. Ixvii 



low and indistinct, having the hind side convex, the fore side slightly concave ; com- 

 pound joint green, tapering, slightly curved upward, remarkably small, while the third 

 joint is proportionally large, the latter being more than four times the length, six 

 times the breadth near the base, and thrice the breadth near the tip, of the former : 

 chest and breast clothed with pale yellow hairs : abdomen obconical, tawny towards 

 the tip, longer than the chest : legs yellow, clothed with short pale hairs, tinged with 

 green ; claws black ; tips of the fore feet tawny : wings whitish ; wing-ribs and veins 

 green ; cross-veins darker ; angle of the tip cross-vein obtuse, distinct ; scales whitish, 

 with pale yellow borders ; poisers green. Length of the body 6 lines ; of the wings 

 13 lines. 

 Brazil. 



Tabands Fullo, fern. 



Canus, capite subtus albo, abdominis segmentorum marginibus posticis ferrugineis, 

 palpis antennis basi pedibusque fulvis, femoribus cards, tarsis piceis, alls al- 

 bidis. 



Body hoary, thickly clothed with short pale yellow hairs : head white beneath ; a 

 pitchy forked mark on the crown : eyes bronze-black, clothed with short pale yellow 

 hairs, parted above by a rather broad interval ; all the facets very small : sucker 

 black ; lancets pale ferruginous ; palpi tawny, rather long and slender, three-fourths 

 of the length of the sucker : first and second joints of the feelers tawny, beset with 

 short black bristles : abdomen obconical, very much longer than the chest, slightly 

 tinged with tawny ; hind borders of the segments pale ferruginous : legs tawny, 

 clothed with pale yellow hairs ; a hoary tinge on the hips and the thighs ; feet ferru- 

 ginous, with pitchy tips ; claws black : wings whitish ; wing-ribs and veins tawny, the 

 latter black towards the tips ; angle of the tip cross-vein obtuse, very distinct, its 

 stump rather longer than its inner side ; scales whitish, with pale yellow borders ; 

 poisers yellow, their knobs pitchy towards the base. Length of the body 6£ lines ; of 

 the wings 14 lines. 



Tabanus fenestrates, fern. 



Rufus, abdominis apice piceo, palpis antennis basi pedibusque ferrugineis, tarsis 

 piceis, alis limpidis dimidio basali nigro-fuscis bifenestralis. 



Body red : head clothed beneath with pale yellow hairs : eyes black, parted above 

 by a broad interval ; facets very small : sucker black ; lancets and palpi ferruginous : 

 first and second joints of the feelers ferruginous : breast clothed with pale yellow hairs : 

 abdomen obconical, pitchy towards the tip, longer than the chest : legs dark ferrugi- 

 nous, clothed with short black hairs ; feet pitchy ; claws ferruginous towards the base ; 

 foot-cushions tawny : fore shanks broad, spindle-shaped, like those of T. latipes of 

 Macquart : wings colourless, dark brown for full half the length from the base, with 

 the exception of two colourless spots, one near the base very small, the other larger ; 

 wing-ribs pitchy ; veins black ; curve of the tip cross-vein slight, a little inclining to 

 the angular form ; borders of the scales pitchy ; poisers tawny. Length of the body 

 6 lines; of the wings 14 lines. 



