hymenoptera. 337 



3. Stizus nigricornis. B.M. 



Stizus nigricornis, Diifour, Ann. Soc. Ent. Fr. vii. 2/1. 2. t. 9. 



f. 2 (1838). 

 Sphecius nigricornis, Dahlb. Hym. Europ. i. 480. 1. 



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

 Larra S3Tiaca, Klug, Symb. Phys. dec. v. t. 46. f. 6. 



Hab. Albania; South of France. 



Specimens of tliis species from Albania differ from those re- 

 ceived from the South of France in havuig the antennae of the 

 females more or less ferruginous ; the specimens are also larger : 

 in other respects they agree with French examples. 



4. Stizus pectoralis. B.M. 



Female. Length 12 lines. — Ferruginous : the face covered with 

 silvery-white }>u])escence, which is short and very dense on each 

 side of the clypeus; the apical half of the mandibles black. 

 Thorax black beneath ; the metathorax black, as well as the coxae 

 and femora, the latter fen-uginous at their apex ; the disk of the 

 thorax has a short ferruginous pubescence ; the wings hyaline, 

 yellowish towards their base. Abdomen entirely ferruginous, 

 shining and finely punctured ; the apical segment strongly punc- 

 tured above. 



Hab. Australia. 



Genus 2. LARRA. 



Sphex, pt., Fabr. Syst. Ent. p. 348 (1/75). 

 Crabro, pt., Fobr. Syst. Ent. p. 373 (1775). 

 Tiphia, pt., Fabr. Mant. i. 278 (1787). 

 Vespa, pt., Vill. Ent. iii. 278 (1789). 

 Bembex, pt., Fabr. Ent. Syst. ii. 251 (1793). 

 Mellinus, pt., Pa7iz. Faun. Germ. 73. 19 (1795). 

 Scoha, pt., Fabr. Syst. Piez. p. 242 (1804). 

 Larra, Klug, Symb. Phys. dec. v. (1829). 

 Bicyrtes, St. Farg. Hym. iii. 53 (1845). 



The insects included in this genus have been usually placed in 

 that of Stizus -, but the type of the latter is the Stizus Hogardii 

 of Latreille, generically distinct from the insects of the present 

 genus, the type of which is the Larra vespiformis. 



1. Larra abdominalis. 



Stizus abdominalis, Dahlb. Hym. Europ. i. 478. 



Hab. Egypt. 



