3/4 HYMENOPTERA. 



1. DlDINEIS LUNICORNIS. B.M. 



Pompilus hmicornis, Fabr.Ent. Syst. Supp. 249. 21; Syst.Piez. 



194. 32<?. 

 Alyson lunicornis, Latr. Gen. Crust, et Ins. iv. 86. 



St. Farg. $ Serv. Encycl. MeU. x. 50. 1. 



Van d. Lind, Obs. ii. 88. 1. 



Shuck. Foss. Hym. 20?. 1 <J ? . 



Dahlb. Hym. Europ. i. 142. 75 & 474. 



St. Farg. Hym. iii. 86. 1. 



Alyson Kennedii, Curtis, Brit. Ent. xiii. fol. & tab. 584 ? . 

 Di'dineis lunicornis, Wesm. Hym. Foss. Belg. 97- 1. 



Hab. Britain ; France ; Germany ; Belgium. 



M. Wesmael has separated this species from the others in the 

 genus Alyson in consequence of the neuration of the anterior 

 wings being different, and the intermediate tibia? being armed 

 with only one spur at the apex. 



Genus 12. MELLINUS. 



Vespa, pt., Linn. Faun. Suec. 418 (1761). 

 Crabro, pt., Fabr. Mant. i. 294 (1787). 

 Mellinus, pt., Fabr. Ent. Syst. ii. 285 (1793). 



1. MELLINUS ARVENSIS. B.M. 



Sphex vaga, Linn. Faun. Suec. 414. no. 1664? (type in Cab. Mus. 

 Linn. Soc. ?). 



Scop. Ent. Cam. 785. fig. 785. 



Vespa arvensis, Linn. Faun. Suec. 418. no. 1678 (and Cab. Mus. 

 Linn. Soc.). 



De Geer, Ins. ii. 2. 820. 3. 



Schrank, Ins. Austr. 392. 791, 



Fabr. Mant. i. 291. 49. 



Christ. Hym. 234. 



Vespa superbus, Harris, Expos. Ena. Ins. 227. 3. t. 37. f. 3. 

 Crabro bipunctatus, Fabr. Mant. i. 296. 18. 



OUv. Encycl. Mfih. vi. 516. 20. 

 Crabro U-flavum, Panz. Faun. Germ. 17. 20. 

 Mellinus bipunctatus, Fabr. Ent. Syst. ii. 286. 4 ; Syst. Pies. 



298.6. 

 Mellinus arvensis, Fabr.Ent. Syst. ii. 287. 7 ? ; Syst. Piez.299. 10. 



Latr. Hist. Nat. xiii. 319. 3. 



Van d. Lind, Obs. ii. 84. 1 $ $ . 



Shuck. Foss. Hym. 203. 1. 



