On new Species of Fossorial Hymen&ptera. 291 



XXXIX. — Descriptions of new Species of Fossorial Hymeno- 

 ptera in the Collection of the British Museum. By Frederick 

 Smith, Assistant in the Zoological Department of the 

 British Museum. 



[Continued from p. 260.] 



Genus Chlorion, Latr. 

 Chlorion regalis. 



Female. Length .15 lines. Black ; head, pro- and meso- 

 thorax bright light red ; the abdomen purple. Mandibles ob- 

 scure ferruginous, with their tips black ; the apical joints of 

 the antennas slightly fuscous above ; the anterior margin of 

 the clypeus with four equidistant, short, angular, acute teeth. 

 Thorax : the metathorax, pectus, sides, coxee, trochanters, base 

 of the intermediate femora beneath, the posterior legs and 

 intermediate tarsi black ; the posterior tibia? with an obscure 

 ferruginous tinge ; wings dark brown, Avith a violet irides- 

 cence ; the hind wings have their apical margins clear hya- 

 line ; the anterior portion of the prothorax, and the metathorax 

 above, transversely finely striated. Abdomen smooth and 

 shining, its colour changing from bright purple to shades of 

 blue or violet in different lights. 



Hab. The Beluchistan district ; Afganistan 5 and Sind. 



This beautiful insect was taken by Dr. Leith, and also by 

 Major T. Le Mesurier. 



Genus Sphex, Linn. 



Sphex torrida. 



Female. Length 13-15 lines. Black, wings bright ferru- 

 ginous, with broad dark fuscous apical margins. Head : 

 the mandibles falcate, very stout, terminating in an acute point 

 and with a stout acute tooth about the middle of their inner 

 margin; the face silvery and thickly set with erect black 

 hairs. The posterior margin of the prothorax with silvery 

 pubescence ; the metathorax with black pubescence ; the scu- 

 tellum with a central impressed line ; the postscutellum with 

 two minute tubercles ; beyond the enclosed cells the wings 

 are dark fuscous, with a slight violet iridescence. Abdomen 

 smooth and shining, with a somewhat obscure blue tinge. 



Hab. Madagascar. 



Sphex tuberculata. 

 Female. Length 13 lines. Black, with the posterior tibiee and 



