1877.] 155 



ACEJEA BUXTONI. 



Upper-side scarlet, with the base black. Anterior wiug witb the 

 outer half transparent ; a black spot at the end o£ the cell. Posterior 

 wing with a large black spot from the base divided by the nervures, 

 and marked by a small scarlet spot ; the outer margin black. 



Under-side as above, except that there are sometimes two or three 

 white spots near the base of the posterior wing. 



Exp. 2 inches. 



Oatlauds, Wejbridge : 



9th November, 1877. 



DESCEIPTIONS OF THEEE NEW BRITISH SAW-FLIES. 

 BY P. CAMERON. 



DoLEEUs Chappelli, sp. n. 



? . Dull black, with a faiut bluish tinge, densely covered with a pale pubescence, 

 deeply and coarsely punctured. Abdomen, from the 2nd segment, reddish-yellow ; 

 the sheath of the saws black. Wings sub-liyaline ; the costa, stigma, and nervures 

 black. 



Length, 4J lines ; alar exp., 11 lines. 



This distinct species comes near D. anticus, Kl., but it has the 

 clypeus more deeply incised ; the pubescence thicker and closer ; the 

 abdomen more sharply pointed ; the pleurse less shining ; and 'the 

 whole of the 1st abdominal segment, the tegulse, pronotum, and meso- 

 notum, black. 



It was taken in one of the English midland counties by Mr. 

 Joseph Chappell, of Manchester, to whom I am indebted for the op- 

 portunity of examining it. 



Dineuea simulans, sji. n. 



9 . Black ; the antennse filiform, nearly as long as the body, the 3rd and 4th 

 joints equal, the remaining joints becoming gradually shorter and thinner. The 

 head (especially on the vertex) very finely punctured ; the mouth is white. The 

 thorax is half shining, bare, and finely punctured ; the scutellum is raised, oval, and 

 shining, the cenchri small, pale. The abdomen is of the length of the head and 

 thorax, but is naiTower, the apex mucronate ; the sheatli of the saws is very large, 

 black, and largely projecting. The legs are white, the femora arc lined with black 

 above, pale fuscous at the sides ; the apex of the posterior tibicc and tarsi (except 

 the last joint) fuscous. Wings hyaline ; the costa and stigma pale ; the latter with 

 the apex fuscous. The neuration is irregular in the only specimen I have seen, but 

 on the whole it agrees with that of D. tesLaceipes, &c. 



Length, scarcely 1^ lines ; alar exp., 3 lines. 



