Manchester Memoirs, Vol. xlii. (1898), No. 11. 43 



basi clypei scapoque antennarum siibtiis pallide flavis ; alls 

 violaceo-fu matis. 9 . 



Long. 9 mm. 



Hab. Poona ( Wro2ighton). 



In Bingham's table {I.e., p. 362) it comes in "^^ Third 

 abdominal segment with a transverse yellow fascia on the 

 middle of its posterior margin " which may now be sub- 

 divided as follows : 



Scape of antennae black ; tegulse yellow, post-scutellam 

 with a yellow spot on the angles, wings clear hyaline. 



O. burmanicus Bing. 



Scape of antennae yellow beneath ; tegulse entirely 

 black; post-scutellum impunctate, wings smoky. O. erebodes. 



Head coarsely punctured ; the punctures large, round 

 and deep ; black ; a large, curved band on the base of the 

 clypeus, a small, heart-shaped mark between the antennae, a 

 line along the lower curve of the eye, and two small marks, 

 longer than broad, on the apex of clypeus, pallid yellow ; 

 mandibles black, the apex broadly piceous ; an elongate, 

 yellow mark in the middle at the base ; this mark being 

 sharply pointed at the apex. Palpi testaceous. Clypeus 

 as long as its breadth in the middle ; the apex narrowed, 

 the sides oblique ; the middle with a shallow, rounded 

 incision, the sides of which form triangular teeth. The 

 clypeus has a few shallow punctures and is densely covered 

 with silvery pubescence. Front and vertex bearing large, 

 deep, distinctly separated punctures ; the front very 

 thickly, the vertex more sparsely, covered with silvery 

 pubescence and hairs ; the eye orbits, on the lower side 

 behind, thickly covered with silvery pubescence ; a little 

 above the middle, there is a small, yellow mark. Antennae 

 covered with a white down ; the scape yellow beneath. Pro- 

 and meso-notum with scutellum bearing all over deep, large 

 punctures, those on the apical part of the mesonotum being 

 the larger; thickly covered with short fuscous pubescence. 



