410 i\rr. P, Cameron 0/2 new 



LIV. — Descriptions of new Genera and Species of 

 Ilymenoptera. By P. (3AMER0N. 



A. New Species q/" Vespidae /row India and Japan. 



Polistes Rothneyi^ sp. n. 



Ferrugineus, nigro maculatus; facie, clypeo apicequetarsorum flavis ; 



alis hyalinis, nervis stigmateque flavis. j , 

 Long. 20 mm. 



Hah. Barrackpore, Bengal [Rothney). 



Antennse rufous, the scape yellow beneath ; the basal six 

 joints black above ; the third joint fully longer than the 

 succeeding two united ; the terminal joint black except at the 

 base, compressed, rounded and slightly dilated at the apex. 

 Head distinctly broader than the raesothorax ; in front densely 

 covered with silvery pubescence, granular; the lower part of 

 the front, the face, and clypeus yellow ; the occiput and a 

 broad band across the vertex, extending to the eyes, black. 

 Clypeus broadly roundly projecting in the middle, the sides 

 waved. Mandibles rufous, tinged with yellow; the three 

 teeth are black, the middle is slightly smaller. Thorax 

 rufous, the lower parts of the pleura? with a yellowish tinge ; 

 mesonotum black, the middle, esj)ecially at the base, with two 

 broad irregular rufous marks. Scutellum and postscutellum 

 rufous, the two separated by a black line. Metanotum 

 black, the sides and two somewhat pyriform marks in the 

 middle rufous ; it is not very strongly or closely transversely 

 striated. Mesopleurae sparsely and indistinctly punctured; 

 the base narrowly, the furrow, a broad irregular splash be- 

 hind on the upper half, and with a small rufous mark in the 

 middle, the apex more broadly than the base ; the base, the 

 lower side, the part along the furrow and the apex, except for 

 a large mark in the middle, black — or, in other words, the 

 mesopleurae are black, with an upper and two lower rufous 

 marks, the posterior being much the larger. Wings hyaline, 

 slightly suffused with yellow along the eyes. Legs rufous, 

 the four anterior yellowish in front, the four hinder coxae, 

 femora, and tibiae lined with black above ; the basal two thirds 

 of the metatarsus black. The base of the first and second 

 abdominal segments and the apices of the others, except the 

 last, broadly black. 



A distinct species. The form of the terminal joint of the 

 antennae is as in P. schach ; that species differs from it in 



