CRABRO CAPITOSUS. 13? 



15. Crabro capitosus. 



C. niger ; capite quadrato ; abdomine clavato ; metathorace 

 laevi ; tibiis posticis valde incrassatis. 



Crabro capitosus, Shuck. Foss. Hym. 159. 20. 



Dahlb. Hym. Europ. i. 317. 198. 



Wesm. Hym. Foss. Ee J y. 129. 3. 

 Crabro laevipes, Herr. Schdff. Faun. Germ. 181. 63. 



Female. Length 3 lines. Black ; head subquadrate, wider 

 than the thorax, smooth and shining ; a slightly impressed line 

 between the antennae passing a little beyond them, a deeper 

 line in front extending to the face, which is canaliculated ; the 

 base and apex of the scape, and the apical joints of the flagellum, 

 rufo-piceous beneath ; the inner orbit of the eyes and the cly- 

 peus covered with silvery pubescence, the latter produced in 

 the centre in front into a tooth ; the mandibles rufo-piceous at 

 their apex. Thorax shining ; the mesothorax and scutellum with 

 a few delicate scattered punctures, the former with two central 

 parallel impressed lines at the base, extending to the disk ; the 

 metathorax smooth and shining, consute at the base, with a faint 

 longitudinal line which deepens beyond the middle, the anterior 

 portion not distinctly enclosed; the tegulae rufo-piceous, the 

 wings hyaline and iridescent, the nervures piceous ; the anterior 

 tibiae yellow in front, the intermediate pair fuscous at their base 

 and apex ; the posterior coxae pale testaceous at their apex, 

 their tibiae subclavate and with a pale yellow ring at the base ; 

 the anterior and intermediate tarsi pale yellow at the base and 

 rufo-piceous at their apex, the posterior pair entirely rufo- 

 piceous ; the legs simple, covered with fine hoary pile. Abdo- 

 men clavate, smooth and shining, the first segment much nar- 

 rowed at the base ; the apical segment concave above, its apex 

 rufescent. 



This species has been taken in the London district, and also 

 ill Yorkshire ; but it is apparently rare. 



16. Crabro bimaculatus. 

 C. niger ; clypeo flavo-maculato ; metathorace laevi. 



Crossocerus bimaculatus, St. Farg. Ann. Soc. Ent. Fr. iii. 788. 25 ; 



Hym. Hi. 191. 25 #. 



Crabro geniculatus, Shuck. Foss. Hym. 169. 28 . 

 Crabro bimaculatus, Dahlb. Hym. Europ. i. 310. 190 <? ? . 



Female. Length 3 lines. Black ; the head punctured and 



