ABDENDA. 



329 



few yellow hairs beneath. Eyes with very minute facets. Lancets 

 tawny. Antenna? small; first and second joints toothed above ; 

 third with a small acute tooth, which is slightly curved forward. 

 Pectus gray, thiniy clothed with yellow hairs. Hind borders of the 

 abdominal segments tawny, testaceous beneath. Tibia, white, black 

 towards the tips. Wings gray, lurid at the base and along the 

 costa ■ veins tawny, black towards the tips ; fore branch of the cubi- 

 tal vein simple ; externo-medial areolets open; subanal vein united 

 to the anal at some little distance from the border; alula, lurid 

 Halteres testaceous. Length of the body 8 lines ; of the wings 15 

 lines. 



a, b. Sikkim Himalaya, North India. From Dr. Hooker's col- 

 lection. 



Page 255. 



Tabanus expulsus. 



Foem. Cinereus ; caput et pectus albido ; palpi ferruginei ; an- 

 tenna fulvce, apice nigrce ; thorax fusco bivittatus ; abdomen 

 nigrum, segmentorum marginibus posticis luteis, ventris late- 

 ribus fulvis, pedes fulvi, tarsis nigris, tibiis posticis nigro 

 ciliatis ; alee cinerece, apud costam fuscce, venulis transversis 

 nigro-fusco guttatis. 



Fern. Head with whitish tomentum behind and beneath, 

 clothed beneath with whitish hairs; vertex brown; front tawny; 

 callus elongate, capitate, black, shining. Eyes aeneous, with very 

 minute facets. Proboscis black. Palpi ferruginous. Antennae 

 tawny, curved upward; first joint produced above in front, and 

 forming an acute angle ; second very minute ; third black above, 

 moderately dilated, forming a slightly obtuse angle ; fourth and fol- 

 lowing joints black. Thorax cinereous, with two indistinct pale 

 brown stripes, which are not apparent in some aspects. Pectus with 

 whitish tomentum, and in front with whitish hairs. Abdomen 

 black ; hind borders of the segments luteous ; under side with two 

 broad lateral tawny stripes. Legs tawny ; coxae black, with whitish 

 tomentum; femora with whitish down, gray at the base; tarsi 

 black, the posterior tawny at the base; fore tibiae piceous towards 

 the tips ; hind tibiae thickly fringed with very short black hairs. 

 Wings gray, brown along the costa for about one-third of the 

 breadth ; transverse veinlets ; tip of the radial vein, fork of the cubi- 

 tal vein and tip of its fore branch clouded with blackish brown ; 

 veins black ; fore branch of the cubital vein forming an obtuse and 



2f3 



