hymenoptera. 351 



64. Larra tenella. 



Larra tenella, Klug, Symb. Phys. dec. v. t. 46. f . 8 (? . 



Hab. Egypt. 



55. Larra tenuicornis. 



Male. Length 7 lines. — Black : the face below the insertion 

 of the antenna;, and a narrow line at the inner orbits of the eyes, 

 not running upwards so high as the anterior stemma, the scape 

 in front, the clypeus, labrum and outer orbit of the eyes, yellow; 

 a narrow black line runs from the antennae to the base of the 

 clypeus, which has a black spot ; the mandibles and antenna; 

 fulvous ; the first joint of the flagellum very slender, its apex 

 as well as that of the two following produced beneath. Thorax : 

 the prothorax, the mesothorax on each side, the tubercles, 

 tegulse, scutellum and legs, ferruginous ; the tibise have a yellow 

 stain above ; the wings fusco-ferruginous, the nervures ferrugi- 

 nous. Abdomen : the basal segment has a yellow macula on 

 each side, the three following a broad interrupted band; the 

 fifth and sixth segments yellow, with a central longitudinal fer- 

 ruginous line ; the apical segment ferruginous ; beneath, the two 

 basal segments have a large ferruginous macida. 



Hab. The Gambia. (Coll. F. Smith.) 



56. Larra tridentata. B.M. 



Crabro tridentatus, Fahr. Syst. Ent. 373. 1 ; Mant. i. 294. 1 <J . 

 Vespa tridentata, Vill. Ent. iii. 279. 27. 



Gmelin, Syst. Nat. p. 2761. 98. 

 Bembex tridentata, Fabr. Ent. Syst. ii. 251. 14. 

 Scolia tridentata, Fabr. Syst. Piez. 242. 22. 

 Larra bifasciata, Fabr. Ent. Syst. Supp. p. 252. 5 2 ; Syst. 



Piez. 220. 6. 

 Stizus bifasciatus, Jurine, Hym. p. 176. t. \4 S . 

 ' Latr. Gen. Crust, et Ins. iv. 101. 



Van d. hind, Obs. ii. 16. 4 <? $ . 



Dahlb. Hym. Europ. i. 152. 88. 



St. Farg. Hym. iii. 298. 7- 



Lucas, Explo. Sc. Alger, iii. 266. 



Hab. France ; Algeria. 



57. Larra tridens. 



Vespa tridens, Fabr. Spec. Ins. i. 464. 33 <? ; Mant. i. 289. 38. 

 Vill. Ent. iii. 276. 22. 



R 



