330 Mr. P. Cameron on new 



of the median segment is irregularly reticulated and punc- 

 tured^ the rest transversely striated ; in the middle of the 

 area is a longitudinal stout keel. Pro- and mesopleurse 

 rugosely reticulated and punctured; the apical part of the 

 metapleurcE irregularly reticulated; the upper part of the 

 base smoothj the lover indistinctly and irregularly reti- 

 culated. The basal two abdominal segments are closely, 

 almost uniformly, but not deeply punctured ; the third, and 

 following are much more deeply punctured, the last more 

 irregularly than the others. 



The male has the clypeus entirely yellow ; the apical 

 incision is wide and shallow ; the four front tibiie are marked 

 with yellow on the outer side, and the bands on the basal 

 two segments of the abdomen are united, but this may be 

 also the case with the female. 



Apidae. 

 Halictus carianus, sp. n. 



Black, the pubescence white ; the head and thorax closely 

 and strongly punctured ; the front with a narrow, not very 

 distinct keel; the area on metanotum stoutly longitudinally 

 striated ; the wings fuscous violaceous, the nervures and 

 stigma black. $ . 



Length 8 mm. 



Hab. Khasia Hills. Coll. Rothney. 



Head large, closely and strongly punctured, the punctures 

 larger on the vertex than elsewhere ; ou the clypeus they are 

 much sparser; the pubescence is sparse and white; the 

 clypeus is fringed with long bright goldeu hair. The keel 

 on the front is slender and is indistinct on the top. The 

 pronotum projects distinctly above ; its outer edge is raised 

 into a sharp keel; the top inside this is flat and bears some 

 irregular keels. The proplenrte above smooth and shining, 

 the rest irregularly and somewhat strongly striated. The 

 mcsonotum is almost rugose. Mesopleurae strongly rugosely 

 punctured, the punctures running into reticulations in places. 

 Postscutcllar region strongly rugosely punctured. The area 

 on the median segment is longitudinally striated ; the j)unc- 

 tures are stout and are clearly separated. The ajjical slope 

 is keeled on the top and on the sides, and there is a narrower 

 central keel which commences near the top ; it is aciculated 

 and indistinctly irregularly striated near the top. The hair 

 on the coxae, trochanters, and femora is long and white, on 

 the tibise it is black, on the underside of the tarsi it is 

 rufous; the spurs pale; the claws rufous. The wings are 

 paler at the base ; both the recurrent nervures are almost 

 interstitial. The hair ou the ventral surface of the abdomen 



