530 Mr. P. Cameron on new 



LXX. — Descriptions of new Genera and Species of 

 Hymcnoptera. By P. CAMERON. 



[Concluded from p. 506.] 



Rhynchium khasianum, sp. n. 



Nigrum ; clypeo, scapo anrennarum subtus, pronoto late pedibusque 



ferrugineis ; tarsia posterioribus nigris ; alis violaceis. £ . 

 Long. 17-18 mm. 



Hob. Khasia Hills. Coll. Rothney. 



Antennas black, the scape rufous, spotted with black on the 

 top. Head black, rugosely punctured ; the clypeus rufous. 

 On the vertex behind the ocelli are two large, deep, smooth 

 foveas, the space between them being smooth. Antennal 

 keel smooth and shining, dilated at the top, and with a small 

 yellow mark on either side of the top. Clypeus rufous, longi- 

 tudinally punctured ; its apex wide, not much narrower than 

 the base; the extreme apex depressed and with a broad slight 

 curve. Mandibles rufous, black on the upperside. Palpi 

 black, sparsely covered with stiff hairs. The base of the 

 pronotum is smooth and shining ; the upper half of the sides 

 rufous, as are also the tubercles, a spot on either side of 

 the metanotum, a line on the mesonotum near the tegulas, and 

 the tegulce. Mesonotum closely and strongly punctured; the 

 extreme base smooth and distinctly separated from the pro- 

 notum. There is a bordered furrow on the basal half of the 

 seutellum in the middle. Median segment rugosely punc- 

 tured, the middle smooth, alutaceous; the basal half furrowed 

 in the middle, the apical keeled ; the top and middle of the 

 niesopleuree closely rugosely punctured ; there is a wide deep 

 furrow on the top of the smooth basal part, with a keel down 

 its middle. Metapleurse deeply rugosely reticulated. Legs 

 ferruginous, the tarsi blackish ; the fore tarsi rufous at the 

 base ; the fore coxas for the greater part black. The basal 

 slope of the petiole smooth ; the rest of it and the second 

 segment closely punctured; the third segment is less strongly 

 punctured, smoother at the base ; the fourth and fifth punc- 

 tured, smooth at the apex. 



Belongs to Bingham's group " A. Basal segment of abdo- 

 men slightly constricted, the apex distinctly narrower than 

 the base of the second segment." What appears to be a 

 variety has the rufous band on the pronotum obliterated, and 

 there is a yellow mark on either side of the clypeus at the top. 



