1885,] 227 



species. They are quite distinct from any of our other British 

 Tompili, and also from the <^ of Evagethes, in the structure of the 

 ibdominal segments, and, therefore, there scarcely seems any reason 

 bo doubt that pectinipes is a distinct species of which we now know 

 both sexes. Still, I must own to having doubts, even now, of the dis- 

 tinctness of Evagethes hicolor and P. pectinipes, ? : it scarcely seems 

 possible that the females of two species in two distinct genera should 

 be so alike as these two are. I have again and again most carefully 

 3xamined them, and can find no character whatever whereby to dis- 

 :inguish them, except the number of sub-marginal cells ; and as 

 jpecimens have occurred with three cells in one wing and two in the 

 )ther, this is scarcely of itself satisfactory, and it seems to me possible 

 l^et that a female may be discovered which may prove to be the real 

 Dartuer of the new ^ . Whether, however, these females are distinct 

 )r not, the males are very easily distinguished ; that under considera- 

 tion at present having the 8th ventral segment tricarinate at the base, 

 she lateral cariusB being sharp and polished, and extending for only 

 .bout a quarter of the length of the entire segment from the base, the 

 entral one dull and rounded, and extending to about two-thirds of 

 he length of the segment, the other ventral segments are not im- 

 ressed longitudinally, as in clialyheatus, but the 6th segment is largely 

 marginate at the apex, the posterior emargination of the prothorai 

 3 also more rounded than in any other of our red-bodied species. 



Sphecodes. 

 I think I have said enough on this genus in preceding numbers 

 show that the past season has greatly increased our knowledge of 

 :s very closely allied and difficult species. 



. Andees-a angustioe, Kirb. 



Mr. Y. E,. Perkins has forwarded to me from GTloucestershire 

 3veral males and females of w^hat I believe to be angustior ; the type 

 f the $ , Kirby says, was in Banks's collection, but I have sought it 

 lere in vain ; the type of the J , F. Smith says, is referable to 

 triceps. It is not, therefore, easy to be sure of what Kirby meant, 

 ut the insects taken by Mr. Perkins are quite distinct from any 

 fcher of our species, and appear to me to be identical with sympliyti, 

 erez ; the females would agree with Kirby 's description, but for the 

 )lour of the tibiae, which are not ferruginous, as described by Kirby, 

 ut only more or less testaceous at the base and apex, still, this pro- 

 ibly is a mere matter of colour variation ; both sexes may be known 

 cm Givynana, which is the species they most resemble, by the longer 



