NORTH AMERICAN HYMENOPTERA. 185 



64. Crabro latiTrons n. sp. 



9 . — Anterior margin of clypeus rounded out, not dentate laterally : punctures 

 of the front and vertex finer and not so close as in flavielypeus, the occiput punc- 

 tured about the same; fore ocellus situated in a strong depression, the furrowing 

 running from it to the frontal depression wide and deep, more strongly marked 

 than in the species mentioned above ; space between the anterior and posterior 

 ocelli is decidedly less than that between the posteriors and the nearest eye- 

 margin ; space between the eyes beneath, at their nearest point of convergence, 

 about equal to five-sixths the length of the scape: first joint of fiagellum but little 

 longer than the second; dorsulum less closely punctured than the front; enclo- 

 closure of middle segment distinct, parted by a distinct, longitudinal furrow, 

 which is broadened basally, each half obli(iuely striated, at the base a heavily 

 foveolated, transverse furrow ; abdomen as long as head and thorax united ; py- 

 gidium about as usual in this section. Blaclv. including theclyx)eus; basal half 

 of mandibles, scape in front, broadly interrupted line on pronotum above, tuber- 

 cles, spot on scntellum, tips of all the femora, especially the anteriors, the tibipe 

 except a spot within and the tarsi, except last two joints, pale yellow; fiagellum 

 testaceous beneath ; tip of abdomen reddish ; clypeus, inner orbits beneath, 

 cheeks and thorax on sides and beneath with dense silvery pubescence ; legs and 

 abdomen with a silvery sericeous pile. Length 4.5 mm. 



Texas. Distinct in the greater space between the eyes beneath 

 and between the hind ocelli and the nearest eye-margin as compared 

 with that between the fore and hind ocelli. 



65. Crabro annaticeps n. sji. 



% . — Clypeus not carinated, its anterior margin truncate, not dentate laterally ; 

 head with finer punctures than in the preceding species, those of the front and 

 vei'tex strongest ; cheeks beneath armed with a short, stout spine ; a well-marked 

 impressed line extends back from the fore ocellus ; anterior ocellus situated in a 

 strong depression, the furrow extending from it to the frontal depression, strong ; 

 furrow running from each hind ocellus to the inner orbit distinct ; space between 

 the eyes beneath at their nearest point of convergence equal to about four-fifths 

 the length of the scape; dorsulum punctured about like the front and vertex; 

 enclosure of middle segment distinct, divided by a broad, shallow channel, which 

 is narrowed posteriorly, and does not extend to the apex of enclosure, at the base 

 with a heavily foveolate, transverse furrow, otherwise the enclosure is obliquely 

 striated, lateral ridges of posterior face distinct and with an outer and inner 

 foveolated furrow ; abdomen shorter than head and thorax united, last dorsal 

 segment strongly punctured. Black ; mandibles, except apex, scape entirely, 

 pedicellum beneath, pronotum above, tubercles, scntellum, tips of all the femora, 

 all the tibise, except a dark spot within, and the tarsi, except extreme apex, yel- 

 low; fiagellum testaceous, palest beneath; last abdominal segment reddish ; cly- 

 peus, inner orbits, cheeks and thorax on sides and beneath, with silveiy pubes- 

 cence ; remainder of insect with a silvery sericeous pile, especially the abdomen ; 

 wings hyaline iridescent, nervures testaceous. Length 4 mm. 



Texas. This will probably prove to l)e the mule oi' pivich/jjeus, 

 or else latifrons. 



TRANS. AM. ENT. SOC. XXII. (24) JUNE, 1895. 



