84 Dr. A. S. Packard, Jr's Revision of the 



Say in his description does not mention the sex of the specimens be- 

 fore him, but they must have been 9 . St. Fargeau's descriptions only 

 differ in " Pedeo lutes-ruji coxarum bast tarsorumque apice fuscis." A 

 specimen received from Mr. Norton, labelled C. chrysarginus, agrees 

 with this description, but otherwise with G. arcaatus, and I therefore 

 unite them, as I have a specimen from Massachusetts, partly fuscous 

 at the tips of the middle femora. 



Crabro villosifrons, n. sp. 



9 . Head of the usual proportions ; two-thirds as long as broad ; 

 surface very finely punctured; a little convex as usual; orbits broadly 

 lined with a silvery pubescence, golden when seen in some lights, 

 giving an unusually velvety pilose appearance to the front; clypeus 

 long, sub-acutely produced in front, well carinated and distinctly mark- 

 ed from the lateral lobes, which are large and well developed, silvery; 

 mandibles yellow, tip black piceous. Antennae of moderate length, 

 thickening a little towards the tips; scape very slightly dilated within, 

 entirely yellow; flagellum closely jointed, piceous. Thorax short and 

 thick, robust. Prothorax with a slightly interrupted yellow band; sur- 

 face of meso-thorax finely punctured, as in the head ; two submesial fur- 

 rows present on the scutum, two yellow spots on the flanks, of which the 

 posterior is oblong ; parapsidal groove obscurely marked ; a slight line on 

 the scutellum. Propodeum with a broad, well-marked sublunate en- 

 closure, with a narrow, obscure mesial furrow; on each side are di- 

 verging fine lines posteriorly becoming fine and transverse. Wings 

 dark, clouded, tegulae much paler than the nervures, which are ferru- 

 ginous. The femora black, yellow at tips ; tibiae yellow, anterior pair 

 yellow with a black line behind; tarsi yellow, terminal joiut blackish, 

 middle and hind femora black, outer third, especially above, yellow; 

 tibiae and tarsi yellow; terminal joint becoming ferruginous towards 

 the black ungues. Abdomen long narrow, ovate, on the basal joints 

 three pairs of fasciae, of which the basal are subreniform, third pair 

 linear, more remote than first pair; hind margin of fourth and fifth rings 

 banded with yellow continuously; tips triangular mucronate. broad, 

 lateral ridge obsolete towards base, hirsute; beneath black. 



Length of body, .54; head and thorax, .80; abdomen, .25 inch. 



N. J., Penn., (Coll. Ent. Soc. Phil.). 



The long cubical head, broad front, clypeus golden in distinction from 

 the silvery lateral lobes, the finely striated propodeum, and minutely 

 punctured velvety head, and the remote fasciae at the base of the abdo- 



