26 Cameron, Hymenoptera Orientalia. 



hinder tibic-e and tarsi are distinctly spincd. Wings 

 hyaline ; the nervures fuscous ; the stigma pallid on the 

 lower side ; the areolet is square ; the second transverse 

 cubital nervure is faint ; the recurrent nervure is received 

 shortly beyond the middle, and is largely bullated in the 

 centre ; the transverse median nervure is received shortly 

 behind the basal. Petiole shining and smooth ; the 

 dilated part depressed in the middle above ; the other 

 segments are more opaque, obscure testaceous at the 

 apex ; the gastrocoeli are shallow, testaceous at the apex, 

 the base with a shining, smooth keel. 



The following two species agree with the foregoing in 

 neuration and in the form of the spiracles ; but differ 

 in having the metathorax closely, distinctly, and finely 

 rugose. In E. dentata the median segment is depressed in 

 the middle and armed with two teeth ; there is one 

 transverse keel on it ; the parapsidal furrows are distinct ; 

 the apex of the abdomen is white ; the tarsi spinose. 



EtHA dentata, Sp. nov. 



Nigra ; liiiea pro)ioti viaculaque medio saitclli flavis ; 

 alis hyalinis, stigmate fusco. 6 . 



Long. 9 mm. 



Antennai black ; the scape below, and the middle of 

 the flagellum broadly, except above, white. Head black ; 

 the eye orbits all round, narrowly on the top on the 

 outer side, the antennal tubercles and a mark on the face, 

 broadest below, the clypeus, base of mandibles, labrum 

 and palpi, yellow. The face and clypeus closely and 

 uniformly punctured, and thickly covered with short white 

 pubescence. The front and vertex closely and finely 

 rugosely punctured, the front closely transversely below. 



