1 8 Cameron, Hymenoptera Orientalia. 



base of the metapleurae broadly black. Wings violaceous, 

 the base lighter, and more yellowish in tint ; the stigma 

 and nervures black. Legs coloured like the thorax ; the 

 four hinder coxae broadly black behind. The apex of the 

 abdomen is broken off in all the examples. 



Tenthredo CARINIFRONS, Sp. nov. 



Nigra; capite thoraceque alboniaculatis, antennis nigris, 

 albo-annulatis ; pedibus anticis albidis^ posterioribus rufis ; 

 abdomine ferrugineo, apice nigro ; alls violaceis, stigmate 

 nigra. '^ et $ . 



Long. 17 mm. 



Antennse black, the greater part of the fourth and fifth 

 and the base of the sixth clear white, the sixth and seventh 

 joints thickened ; the basal joints thickly covered with short, 

 black hair. Head black ; the labrum, the middle of the 

 clypeus broadly, the inner orbits — broadest at the top ; 

 a transverse mark behind the eyes at the top, a larger one 

 on the lower side ; the base of the mandibles broadly and 

 the palpi, white. Head smooth, shining ; the frontal de- 

 pression large, oval ; behind bordered by a deep and wide 

 furrow ; there is a triangular depression between the 

 ocelli ; its sides striated ; behind is a smooth, curved 

 furrow ; the middle of the vertex is bordered by a wide 

 depression ; the occiput above is sharply margined. 

 Thorax shagreened, the mesopleurae more coarsely than 

 the rest ; a broad line on the pronotum, not reaching to 

 the base, and with a small oblique dilatation on its middle ; 

 the base of the tegulae, a line on each side of the middle 

 lobe of the mesonotum, the scutellum, except at the apex, 

 the post-scutellum, a large mark in the centre of the pro- 

 and of the meso-pleurae, a smaller one on the lower side of 

 the mesopleurae, longer than broad and narrowed towards 

 the apex, a mark, narrowed at the top, over the middle 



