of Fossorial Hymenoptera. 255 



Fargeau does not mention any spots on the face of sexpunc- 

 tatus : that species is found near Paris ; S. bipunctatus may 

 prove to be an extreme variety of it. 



Salius dorsalis. 



Female. Length 4 lines. Black, with the pro- and meta- 

 thorax red. The anterior margin of the clypeus and tips of 

 the mandibles ferruginous. Thorax : the metathorax with the 

 posterior lateral angles produced and spiniform ; the wings 

 slightly fuscous, the nervures black ; the calcaria at the apex 

 of the tibise white ; the intermediate and posterior tibia? and 

 tarsi with a few slight short spines. Abdomen : the base, the 

 apical margins of the first and second segments, and the basal 

 margin of the latter also, with silvery-white pubescence. 



Hob. Angara (Siberia). 



Genus Chirodamus, Halid. 



Head narrower than the thorax, convex in front ; antenna; 

 short, thick, and convolute in the female ; labrum exposed. 

 Thorax : narrowed anteriorly from the base of the wings ; 

 prothorax short and transverse ; the metathorax short, not 

 abruptly truncate, the margins being rounded ; wings with 

 one marginal cell, pointed at its apex ; three submarginal 

 cells ; the first one third longer than the third, which is nar- 

 rowed towards the marginal one ; the second much narrower 

 than the third, and subquadrate, being a little longer than 

 broad ; legs of moderate length, anterior pair raptorial, short, 

 and incrassate ; the claws stout, with a large pulvillus between 

 their fork. Otherwise as in the genus Pompilus. 



Mr. Haliday has not given any characters whereby to di- 

 stinguish the insects belonging to this genus ; they are, how- 

 ever, indicated by him in his remarks. It will be seen that 

 the characters which separate this genus from that of Planiceps 

 are the narrow head, non-prominent eyes, and the wings having 

 three submarginal cells, and the conspicuous distinction of 

 having the front of the head convex. The abdomen is of the 

 ordinary form of Pompilus, convex, and in no degree compressed. 

 As indicated by Mr. Haliday, the situation of this genus is 

 next to Planiceps. 



Chirodamus distinctus. 



Female. Length 6 lines. Black: the head, thorax, and fe- 

 mora with long erect black pubescence, not very dense. The 

 clypeus widely truncate, the truncation slightly incurved ; the 

 labrum subangular ; the apical portion of the mandibles fer- 



18* 



