HYMENOPTERA. 417 



margins ; beneath, each segment with a broad bisinuated yellow 

 band on its apical margin ; the apex of the first and the base of 

 the second segment ferruginous. 



Hah. Florida (St. John's Bluff). (Coll. E. Doubleday, Esq.) 



124. Crabro impressifrons. 



Crabro tibialis. Say, Narr. Exped. St. Peter's River, Append. 

 p. 73. ] . 



Hab, Pennsylvania. 



125. Crabro dubius. 



Solenius interruptus, St. Farg. Ann. Soc. Ent. Fr. (1834) iii. 716. 



3 ; Hym. iii. 122. 4. 

 Crabro conflueutus, Say, Bost. Journ. i. 376 (1834-7) (var. ?). 

 Hub. North America. 



126. Crabro maculatus. B.M. 

 Crabro maculatus, Fabr. Ent. Syst. ii. 295. 8; Syst. Piez. 309. 9. 

 Hab. North America. 



127. Crabro pictus. 



Blepharipus maculatus, St. Farg. Ann. Soc. Ent. Fr, iii. 730. 3; 



Hym. iii. 135. 3 (nee Fabr.). 

 Crabro maculatus, Dahlb. Hym. Europ. i. 344. 226. 



Hab. North America. 



128. Crabro macultpennis. B.M. 



Blepharipus maculatus, St. Farg. Ann. Soc. Ent. Fr. iii. 730. 3 $ 



(nee Fabr.) ; Hym. iii. 135. 3. 

 Crabro maculatus, Dahlb. Hym. Europ. i. 344. 226. 



Hub. North America. 



Specimens from Hudson's Bay have the wings spotted a little 

 differently to the description of St. Fargeau, as follows : — a small 

 oblong-quadrate brown spot in the middle of the marginal cell, 

 another at the apex of the extemo-medial cell, and a third in the 

 middle of the first recurrent nervure ; in other respects the insects 

 agree with St. Fargeau's description ; but the species is quite 

 distinct from the maculatus of Fabricius. 



129. Crabro singularis. B.M. 



Male. Length 5-6 lines.— Black : the head narrower than the 

 thorax, the vertex much narrowed behind ; the face deeply chan- 



