274 HYMENOPTERA. 



mologia Systematica," and contained three or four species 

 agreeing with its tvpe, Larra vespiformis, the Stiziis vespiformis 

 of Latreille, Dahlbom and St. Fargeau. In this Catalogue the 

 name Larra is restored to those s])ecies for which Fabricius ori- 

 ginally formed it. The genus Larra of Latreille contains two, 

 or perliaps more, good generic types of form : for one, the ge- 

 neric appellation Tachytcs, as proposed by Panzer, is adopted : 

 for the second the name Larrada is proposed ; it contains those 

 species which have the marginal cell truncated at the apex and 

 appendiculated, and three submarginal cells, the tirst as long as 

 the two following, the second receiving both reciu-rent nervures 

 near its centre, tlie third lunate ; the metathorax truncated pos- 

 teriorly, elongate, the sides being generally ])avallel, but some- 

 times a little wider at the base ; the mandibles large, arcuate, 

 with a dentation on their exterior towards the base ; abdomen 

 ovato-conical, acuminate at the apex. In the type, L. anathema, 

 the mandibles are not toothed w-ithin, and such is the case with 

 the majority of the species ; but in many there is a stout tooth, 

 which is notched at its base. Probably a thorough investigation 

 of the mandibles of all the species would sliow the necessity for 

 making a separate genus for the species will: teeth within the 

 mandibles; in the present work they are included with the rest. 



Species of Europe. 



Div. 1 . Abdomen red and black. 



1. Larrada anathema. B.M. 



Sphex anathema, Rossi, Faun. Etrus. ii. 65. 822 ? . 

 Larra ichneumoniformis, Fabr. Ent. Syst. ii. 221. 4^; Syst. 

 Piez. 220. 4. 



Coqueb. Illustr. Icon. Ins. ii. t. 12. f. 10 ? . 



Panz. Faun. Germ. 7G. 18 c? ; Krit. Revis. ii. 128. 



Spin. Ins. Lig. i. 72. 1. 



Latr. Noiw. Diet. 2nd ed. xvii. 324 ; Gen. Cnist. et Ins. iv. 7 1 • 



Dumer. Diet. Sc. Nat. xxv. 285. 



Guer. Diet. Class, ix. 224. 

 Loris anathema, Illig. Ed. Faun. Etrus. ii. 101. 822. 

 Pom|)ilus teutonus, Fabr. Syst. Piez. 194. 34 $ . 

 Larra anathema. Van d. Lind, Obs. ii. 18. I. 



Shuck. Foss. Hym. 87. 1 



Dahlb. Hym. Europ. i. 136. 68 & 472. 1. 



Smith, Cat. Brit. Hym. 18. 1. 

 Tachytes anathema, St. Farg. Hym. iii. 254. 17. 



Lucas, Explo. Sc. Alger, iii. 250. 



Hab. Italy; France; Germany; Hungary; Greece; Algeria; 

 Port Natal. (Britain?) 



