HYMENOPTERA FROM JAPAN AND THE PACIFIC. 267 



to the large apical one. Prothora^x convex in front, 

 produced at each side, so that the head fits into it, 

 and sharply margined. Upper side of thorax coarsely 

 punctured ; the sides and nietanotum coarsely 

 reticulated, except a smooth, shining space in the 

 centre of the mesopleura. The sternum bears some 

 large punctures, and is deeply and widely fur- 

 rowed. The furrows on mesonotum wide and curved. 

 Petiole rugose. Abdomen sub-triangular, densely 

 •covered with white pubescence. The pobrachial 

 transverse nervure is interstitial and the recurrent 

 nervure is nearly so. The first cubital cellule is 

 iibout one-fourth longer than broad, narrower at 

 apex than at base ; the i)raebrachial nervure is 

 received near the middle of the cellule. All the 

 nervures are curved ; the cubitus is obsolete from 

 the first cubital cellule. Legs densely i)ilose; claws 

 minutely toothed. 



Length, 8 mm. ; hind legs, 15 mm. 



This species comes nearest to E. iwinceps, West., 

 from Australia, but is much smaller, princeps being 

 7 lines in length. 



For the Hyme7iop)teva here described I am indebted 

 to Mr. George Lewis, whose investigations into W\e 

 insect fauna of Japan are so well known and appre- 

 ciated by entomologists. 



TENTHREDINIDAE. 



DOLERUS BIMACULATUS, n.s. 



Bluish-black ; abdomen bluish-green ; the two lateral 

 lobes of mesonotum red; abdominal segments (the 

 apical broadly) edged with white. Antennae as long 

 .as the abdomen, the apex attenuate ; third joint 

 longer than fourth. Head coarsely punctured, vertex 

 without sutures, except two short indistinct furrows 

 behind the ocelli; the centre raised from the sides; 

 face and sides of head covered with long white hair; 

 clypeus projecting, deeply incised. Thorax strongly 

 punctured, the pleurae and sternum rugose, covered 



