138 ' WILLIAM J. FOX. 



4. t'rabro prodiioticollis Pack. 



Crahro produc.ticolJis Packard, Proc. Ent. Soc. Phila., vi, ji. 76, % . 



Crabro i-puHctatus Provancher, Hyra. Quebec, p. 653. 



Crahro A-maculatus Provancher (non Fabr.), ibid. ]>. 655, 9 • 

 9 ■ — Head covered with strong, even, distinctly separated punctures, sparse on 

 the cheeks and "large and deep on the front ; pronotum not so sharply margined 

 as usual, the lateral tooth extremely small ; thorax, perhaps, a little less coarsely 

 sculptured than in the allied species; middle segment somewhat rugose, but not 

 coarsely, the not strongly, sometimes indistinctly striated, longitudinal central fur- 

 row of upper surface rather broad, and the transverse series of fovese well 

 marked; abdomen finely and closely, though distinctly punctured, strongly 

 glabrous in com))arisou to the other species of the group. Black ; scape, pedi- 

 cellum more or less, two spots on pronotum, tubercles, scutellum more or le.ss 

 (rarely black), tips of femora, tibiae, scmietimes dark internally, tarsi {apical joints 

 darker) and a spot on each side of dorsal abdominal segments "2-5, widely sepa- 

 rated, and sometimes a much smaller spot on each side of segment 1, yellow; 

 pubescence of clypeus silveiy; wings subhyaline, lint little darker apically. 

 Length 8-11.5 mm. 



% . — Head with coarse punctures, those between the ocelli and occiput con- 

 fluent; cheeks very sparsely punctured, polished; flagellum distinctly widened 

 near the base; space between eyes at base of clypeus distinctly less than that 

 between the hind ocelli, and less than in the allied species : thorax very coarsely 

 sculptured, scutellum longitudinally rugose ; middle segmeijt covered with coarse 

 rugfe, the sides coarsely striated ; fore femora with lower margin strongly angular 

 just beyond the middle, toothed near the base as usual ; first joint of medial 

 tarsi more strongly sinuous than in % of interruptus and bellus: abdomen but 

 little more strongly punctured than in the female; colored like the 9- except 

 that the scape is dark i)osteriorly, the thorax excepting the tubercles is rarely 

 maculated, the spots on abdomen are longer and narrower and those on segments 

 5 and 6 form usually though not always, bands. Length 6-b.5 mm. 



Canada (Harrington); New Hamp.shire (Mrs. Slosson); New 

 York; New Jersey; Illinois (Nason); Texas; Washington; Van- 

 couver. A speei)nen from Illinois is more strongly sculptured than 

 usual, but still retains the shiny appearance, particularly of the ab- 

 domen, which is a good superficial character in this species. Pro- 

 vancher's C. -^-j)i(iictatH><, which the same author calls i-macukitu.i 

 on p. 655 of his work, I unite with this species, as it is evidently the 

 female. This latter sex has also been given the name acicuhdas 

 Cress, non Prov.), but Cresson never published a description of it. 



2. Group montanas. 



Differing from the preceding group by the less coarsely scul})tured 

 bodies, the abdomen being very finely punctured. The dorsulum is 

 closely and not very coarsely striato-punctate, tending in the males 

 to rugose. Medial j)roduction of clypeus shorter and broader than 



