26 Mr. P. Cameron on new Aculeate TTymenoptura 



Larra fuscinervay sp. n. 



Nigra, capite thoraceque dense argenteo pilosis; alis hyalinis, ucrvis 



fuscis. ? . 

 Long. 11 mm. 



Hah. Allaliabad {Rothney). Coll, Rothney. 



Scape of antennai shining, sharply keeled on the middle 

 beneath ; the flagellum opaque, densely covered with a white 

 microscopic pile. The vertex is shining, minutely punctured, 

 sparsely haired; the ocellus has a triangular, clearly separated, 

 part in front, the whole being distinctly longer than broad ; in 

 front of it is a wide longitudinal furrow. The face and clypeus 

 are densely covered with silvery pubescence ; the apex of the 

 clypeus is bare, smooth, and shining ; the base of the mandibles 

 is thickly covered with silvery pubescence, the middle is 

 broadly rufous; palpi black, densely covered with white 

 pubescence. Pro- and mesonotum thickly covered with 

 fulvous pubescence; closely minutely punctured, as are also 

 the scutellum and postscutellum. Median segment opaque, 

 its middle alutaceous, the sides irregularly, transversely, and 

 somewhat widely striated ; the basal three-fourths is finely 

 furrowed down the centre ; the apical slope is distinctly 

 furrowed to near the apex and is transversely striated ; the 

 sides are thickly covered with silvery pubescence. Pro- and 

 mesopleurse alutaceous, thickly covered with silvery pubes- 

 cence ; the metapleur^ are obscurely, closely, obliquely 

 striated. Legs thickly pruinose, the spines black. Abdomen 

 thickly pruinose, as long as the head and thorax united; the 

 pygidium smooth, shining, glabrous, impunctate. 



Comes into Bingham's section U^ on p. 197 ; nana may be 

 known from it by the ocellus being round : nigriventris is a 

 stouter built insect, has the wings more distinctly yellow, 

 the clypeus more distinctly keeled in the middle ; the frontal 

 furrow in the present species does not bifurcate round the 

 ocellus, the wing-nervures are darker, the apex is scarcely 

 infuscated, and the abdomen is longer with the pygidium only 

 very slightly punctured round the edges. 



Larra iridipennisj sp. n. 



Nigra, argenteo-pruinosa ; alis flavo-hyalinis, nervis fuscis, cellula 



cubitali 2* longiore quam I''. 5 . 

 Long. 11 ; alar. exp. 13 mm. 



Hah. Barrackpore {Rothney). Coll. Rothney. 



Scape of antennae shining, covered with pale pubescence; 



