a new Genus of Infecls. io\ 



Oculi ovales. 

 Ala plana:. 

 Aculeus reconditus. 



Thefe characters, I think, will fufficiently diftinguifh out Jmmophiia 

 from thofe genera to which it is moft nearly related. The direc- 

 tion of the roftrum in this genus, the form of the eyes, and the plane 

 furface of the wings, clearly prove it to be diftinft from Vefpa. 

 The bifid tongue, and the antenna? filiform in every fex (£), feparate 

 it from Apis. The direction and length of the roftrum, and the 

 bifid tongue, divide it from Sphex. The fame part in conjunction 

 with the number of articulations, and form of the antenna, prevent 

 its beini>; confounded with Ichneumon. 



Synopsis Specierum. 



1. Vulgaris. A. antennis tredecim-nodiis, frontis fovea inferrx ; 



abdominis petiolo elongato biarticularo, alis a^quali. 



2. Afiinis A. antennis tredecim-nodiis, frontis fovea infertse ; 



abdominis petiolo uniarticulato ; alis corpore brevioribus. 



cl Hirfuta. A. antennis tredecim-nodiis ; abdominis petiolo 

 uniarticulato brevi ; alis corpus axiuantibus. 



a. Arventea. A. antennis quatuordecim-nodiis ; abdominis pe- 

 tiolo uniarticulato; alis corpore brevioribus (c). 



\V) In Apis the antennx of the males are filiform, while thofe of the other fex are fob- 



clavate. 



(ej This genus, as far as I am acquainted with the fpecies that compofe it, offers to the 

 Entomologift the' lingular felicity of forming a JXagnofis tycierum, frcn: form, and the 

 number and proportion of parts, without the ncceffity of having reeourfe ether topubef- 

 cence, or colour, for that purpoTe. 



Vol. IV. n <> i. Ammo- 



