DESCRIPTION OF THE PLATES. 
6. The first cubital or submarginal cell. 
7. The second ie 
8. The third of 
9. The fourth 
10. The first discoidal cell. 
11. The second 
12. The third 
13. The first apical cell. 
14. The second 
Fic. 2. The dotted parts, upon this figure, show the portion 
of the wing, which has hitherto furnished characters. 
In Prares 2, 3, and 4, I may observe, that the wings drawn 
are those of the types, excepting in Px. 3, No. 19, where the 
Oxybelus uniglumis has been used, the type not being British ; 
as also in Pt. 4, No. 29, where the Alyson lunicornis has been 
figured, and at Fig. 35 of the same plate, our species, the 
Philanthus triangulum, has been used, their types likewise being 
foreign. 
Pri. 2. Fic. 6. Pompilus. It must be remembered, that se- 
veral of the species of this genus considerably differ in the 
neuration of their wings from the type, for in some the third 
submarginal cell is much wider towards the marginal, even 
sometimes nearly square, and in the P. niger it is also occasion- 
ally petiolated. I repeat this here, in case, on referring to the 
plates, the observations under the genera should not be also 
looked to, but which, however, is always desirable. 
