DIPTERA. 47 



side ; compound joint slighlly curved upward, much shorter than the third 

 joint : chest clothed with short pale yellow hairs ; breast thinly clothed 

 with short white hairs : abdomen tawny, obconical, a little narrower and 

 much longer than the chest ; under side tinged with whitish colour ; tip 

 ferruginous, beset beneath with short black bristles ; back brownish tawny, 

 tawny at the base and thence partly along each side, which is adorned 

 with a row of yellow spots : legs pale tawny, clothed with short black hairs ; 

 thighs clothed with short white hairs ; claws black towards the tips: wings 

 whitish ; wing-ribs and veins pale tawny ; ancfle of the tip cross-vein very 

 obtuse, slightly rounded ; scales whitish, with pale tawny borders ; poisers 

 pale tawny. 



Fern. Head golden yellow above, white beneath : eyes bronzed ; the 

 facets as usual : palpi sometimes white : abdomen darker than that of the 

 male, its back gray, with a stripe composed of hoary hairs along each side. 



Length of the body 3| — 4 lines ; of the wings 7 — 8 lines. 



East India. 



Tabanus Pvrrhus, Plate 2-, fig. 4, Mas., tig. 5, Fern. 



Mas et Fern. Cinereus, thoracis lalerihus, abdoniinequc fulvis (fern, uhdo- 

 minecinereolaterihus basi fulvis), antennis fulvis basiflavis, pedibus 

 fulvis, tarsis anticis piceis, alls albidis. 



Male. Head whitish and clothed with white hairs beneath : eyes pale 

 red, of one colour, but divided into two very distinct regions, distinguished 

 ))y the great difference in the size of the facets : sucker pale tawny ; lan- 

 cets pale ferruginous ; palpi yellowish white, clothed with white hairs : 

 feelers bright tawny ; first and second joints pale yellow, beset with a few 

 very short black bristles ; third joint very slightly convex beneath, forming 

 above a very shalloiv obtuse angle whose hind side is one fourth of the length 

 of its fore side ; compound joint curved upivard, much shorter than the third 

 joint : chest and breast gray, clothed with hoary hairs ; their sides tawny : 

 abdomen tawny, obconical, very much longer than the chest, clothed with 

 hoary hairs, darker towards the tip : under side ferruginous towards the 

 tip which is beset with a few short black bristles : legs tawny, clothed with 

 a few very short black hairs ; thighs clothed with white hairs ; feet and 

 fore-shanks darker towards the tips ; claws black ; fore-feet pitchy : wings 

 whitish ; \ving-ril)s and veins pale ferruginous ; angle of the tip cross-vein 

 disiincl hut very obtuse, sending forth a slnmi) which is more m- less shorter 



