COLLETES. — PKOSOPIS. 



409 



Fig. 128.— Colletes 

 dudgeonii, $. |. 



tibial calcaria of tbe posterior legs subequal, about halt the length 

 of the basal joint of the tarsi. Abdomen broadly ovato-pyritorm. 



The insects belonging to this species make their burrows in hard 

 sand or in the mortar between the stones in old waUs. No species, i 

 believe has hitherto been recorded from India. The one described 

 below i found tunnelling into the hard earth of a cuttmg on the 

 road along the Eangit stream leading to Kalimpong in Sikhim, in 

 April 1894. 



708. Colletes dudgeonii, n. sp. 



Head above on the vertex with a few fine punctures, the 

 thorax somewhat coarsely and closely punctured, abdomen smooth, 

 oniQue • clypeus rounded anteriorly and narrowed, convex ; eyes 

 ' ' ^ ' ^ convergent beneath ; median segment truncate 



posteriorly, coarsely longitudinally rugose at 

 base, with a medial furrow to tbe apex, the 

 posterior face on each side of the furrow and 

 below the rugose space at base smooth. Black ; 

 the clypeus, front, region of the ocelli, cheeks, 

 and posterior face and sides of the median seg- 

 ment with long, white pubescence ; the meso- 

 notum and scutellum with scattered black erect 

 hairs ; the legs covered with a sott white down, 

 somewhat long on the femora; the posterior 

 margins of segments 1-5 of the abdomen with 

 transverse bands of dense short white pubescence the bases of 

 the 4th and 5th segments and the pygidmm covered with longish 

 black hairs ; wings hyahne, slightly fuscescent ; nervures dark 

 brown, tegulaD black. 



Hah. Eangit Valley, 4000 ft., Sikhim. $ . Length 12; exp. 24 mm. 



Genus PROSOPIS. 

 Prosopis, Fahr. Syst. Piez. p. 293 (1804) ; Smith, Cat. i, p. 18 (1853). 



Type, P. communis, Nyl. 



Range. Both hemispheres. 



Head from front elongate, flat, as wide as the thorax; ocelli 

 in a triangle on the vertex; the tongue sub- 

 emarginate at the apex ; labial palpi 4- 

 jointed ; maxillary palpi G-jointed ; eyes 

 more or less convergent beneath. Thorax 

 oval, the median segment with a cordiform 

 or triangular space at base, generally more 

 or less rugose ; legs slight, short : wings 

 ample ; fore wing with the radial cell broad 

 at base, acutely pointed at apex ; two 

 cubital cells receiving the two recurrent 

 nervures, the shape of the cubital cells and 

 the points at which the recui'rent nervures 

 are received varying considerably. 



1 2 



Fig. 129. — Prosopis. 

 1, labium ; 2, luaxilla : 

 much enlarged. 

 (Smith, Cat. i, pi. vi.) 



