432 HYMENOPTERA. 



Stigmus, Latr. Gen. Crust, et Ins. iv. 84 (1806). 

 Cemonus, Jurine, Hym. 214 (1807). 

 Diodontns, Curtis, Brit. Ent. ii. 496 (1836). 



1. DiODONTUS MINUTUS. B.M. 



Crabro minutus, Fabr. Ent. Syst. ii. 302. 32. 

 Pemphredon minutus, Fabr. Syst. Piez. 316. 9. 



Va7i d. hind, Obs. ii. 78. 2. 



St. Farg. Hym. iii. 96. 2 ? (non S )• 

 Sphex pallipes, Fans. Faun. Germ. 52. 22? 

 Cemonus minutus, Jurine, Hym. 214. 

 Stigmus minutus, Latr. Gen. Crust, et Ins. iv. 84. 

 Diodontus minutus, Curtis, Brit. Ent. fol. 496. 



Shuck, Foss. Hym. 185. 1. 



Dahlb. Hym. Europ. i. 252. 152. 



Wesm. Hym. Foss. Belg. 121. 2. 



Hab. Britain; France; Germany; Italy; Belgium; Sweden; 

 Denmark. 



2. Diodontus tristis. B.M. 



Pemphredon tristis, Van d. Lirid, Obs. ii. 76. 1. 

 Diodontus tristis, Shuck. Foss. Hym. 187- 3. 



DaJilb. Hym. Europ. i. 249. 149. 



Wesm. Hym. Foss. Belg. 120. 1. 

 Diodontus pallipes, Dahlb. Hym. Europ. i. 250. 151. 



Hab. Britain; Germany; Belgium; Sweden. 



3. Diodontus luperus. B.M. 



Diodontus luperus. Shuck. Foss. Hym. 186. 2. 

 Dahlb. Hym. Europ. i. 254. 153. 



Hab. Britain; Germany. 



4. Diodontus medius. 



Diodontus medius, Dahlb. Hym. Europ. i. 250. 150. 

 Hab. Sweden. 



Genus 1 1 . CERATOPHORUS. 



Pemphredon, Van d. hind, Obs. ii. 82 (1829). 

 Cevatophorus, Shuck. Foss. Hym. 198 (1837). 



