226 [March, 



Supposing M. Chcvrolat's insects canfiot with certainty be 

 proved British, tliere are no grounds for considei'ing seviirufus in- 

 digenous to tliis country ; and the error (if it be one) will be the 

 more surprising, as Mr. Watei'house has in his Catalogue reiterated 

 the Waltonian corrections. 



O. scmirufiis appears to resemble scufellaris, but with the head, 

 rostrum and thorax black (the latter being less rounded at the sides) 

 and the femora obsoletely toothed. 



D. — Insect entirely/ black. 



c. — JBodj/ covered with more or less long hlaclc Jiairs, rather 

 erect on the thorax, and elevated on the elytra. 

 0. ilicis, Fab. 



O. irroratus, Kies. (meridional Europe). 



O. sparsus, Schon. (meridional Europe). 



O. subfasciatus, Schon. (Crimea, &c.). 



d. — Body hairless. 



1. — Elytra uniform. 



la. — ■Scutellar lobe of the thorax not produced. 

 O.fagi, Linn. 



O. pubeseens, Steven. Attributed to England, but with no specific note 

 of locality. In the synonymy are references to Stephens' JMan. 

 and Brit. Ent. ; in the latter under the synonym o^pilosus. Both 

 the pubeseens and inlosus of Stephens have been shown by Mr. 

 Walton (loc. cit.) to be nothing but 0. ilicis ; and the case is, as 

 regards Stephens, in all probability in the same categoi'y as O. semi- 

 rufus above mentioned. 



O. pubeseens appears to resemble /o^t, but with stronger and 

 coarser pubescence, the scutellum and sides of breast white, and the 

 elytra more deeply punctate-striate, and not so dilated behind the 

 middle. It resembles ilicis in form. 



lb. — Scutellar lobe slightly produced. 

 O. pratensis, Germ. 



O. ramphoides, du Val (meridional Europe, Algiers). 



O.flavidus, Brisout (Algiers). 



2. — -Elytra banded. 



O. eri/throjms, Germ. {Germany and France). Found on oak. Like 

 avellancc, but with entirely ferruginous legs, denticulated femora, &c. 



O. tricolor, Kies. (meridional Europe). 



