1910.] 271 



SOME ADDITIONS TO THE BRITISH LIST OF CRABBO SPECIES. 

 BY THE REV. P. D. MORICE, M.A., F.E.S. 



Herr Kohl has lately returued to me with his determinations 

 a large number of Crabro specimens, British and foreign, which I had 

 forwarded to him, at his request, for study in connexion with his 

 forthcoming Monograph of the group. 



In consequence, I am able to make two unexpected additions to 

 the British List of Crahro spp., and also to record positively the 

 occurrence in this country of a species, as to which Mr. Saimders 

 wrote in Ent. Mo. Mag., 1906, p. 173, that he had little doubt it was 

 British, and in fact possessed a specimen from Shuckard's collection, 

 but did not propose to introduce it into our list, as that specimen was 

 without date or locality. 



Crabro (Ccelocrabro) ineemis, Thomson. 



This is a Ccelocrabro with the front scarcely excavated, the hind 

 tibiae spinose, and the propodeal area ill defined — allied, therefore, to 

 cetratus and puhescens. 



I have taken it twice in this district, at Clandon, 18.viii.l900, and 

 at Woodham (between Woking and Byfleet), 18. vi. 1902, in both cases 

 a single $ . Having found the first of these specimens and a puhescens 

 ^ in the same place on two following days, I hastily concluded that 

 they were sexes of the same species, viz., pubescens, and have taken 

 this for granted ever since. Pubescens, however, in both sexes, has the 

 scape of tlie antennae and the base of the hind tibiae marked with 

 white, while in inermis these parts are immaculate (black) . The $ ? 

 both of inermis and pubescens differ from those of cetratus in having 

 the tempora behind the eyes simple (i.e., un-spined), and the (J (^ in 

 having simple fore-legs. (Styrius, added to our list by Mr. Saunders 

 I.e., appears to be a smaller and otherwise very different insect, which 

 could only be confovuided with cafitosus) . 



Pubescens, cetratus, and inermis seem to be widely and similarly 

 distributed through Europe from Scandinavia to the Alps, but to be 

 everywhere rather rare. Probably they often escape capture and 

 recognition through being confounded with the very common, and 

 therefore unvalued, species leucostomtis. 



Crabro (Solenius) larvatus, Wesm. 

 This, though hitherto unrecorded, is probably no rarity — at any 

 rate in the south of England, as I have taken a (^ in the New Forest 

 (6.vi.l900) and 4 ^^ (J and 1 ? at different places in my own neigh- 

 bourhood (Woking, Chobham, Downside near Cobham, &c.) in Jun 

 and July, 1899—1902, 



Y 2 



