June, '08] ENTOMOLOGICAL NEWS. 255 



Crabro (Xesfocrabro] drymocallidis n. sp. 



$. Length 5 T /2 mm.; length of anterior wing 4 mm. Head finely 

 rather sparsely punctured ; ocelli in about an equilateral triangle ; 

 distance between hind ocelli less than that between them and the near- 

 est eye margin ; a furrow from lower ocellus to facial basin ; facial 

 basin smooth, shining, not meeting eyes on sides, rather obtusely 

 pointed above; first joint of flagellum longer than second, first three 

 joints emarginate basally, produced at apex, apex of fourth joint 

 slightly produced beneath ; clypeus rounded anteriorly, without teeth ; 

 middle carina not strong; pronotum sharply truncate anteriorly, with- 

 out ridge or teeth ; slightly notched in middle ; dorsulum more densely 

 punctured than head, without longitudinal carina; scutcllum striato- 

 punctate; meso-pleurae finely, transversely striated, some striae stronger 

 than others ; suture between episternum and epimeron meso-pleuralis 

 quite distinct; furrow of middle segment distinct; upper and posterior 

 faces divided by a ridge ; upper surface shining, with a few oblique 

 striae; sides and posterior face transversely striated; anterior femora 

 produced at base beneath; middle tibiae without apical spur; abdo- 

 men smooth, shining, impunctate, widest beyond middle. Color black ; 

 small spot on apical part of scape beneath, tubercles, small spots on 

 sides of second, third and fourth dorsal abdominal segments bright- 

 ycllow; legs black, anterior femora beneath rufous, anterior tibiae be- 

 neath, anterior tarsi, spot on apical part of middle femora beneath, 

 spot on posterior tibiae beneath yellow or rufous ; wings dusky hyaline ; 

 nervures and stigma dark brown ; clypeus, cheeks and lower part of 

 thorax with silvery pubescence. 



Habitat Topaz, Butte, Teller Co., Colo., alt. about 9000 ft., 

 June 23, 1907 (S. A. Rohwer), fls. Drymocallis fissa. 



May be separated from its allies by anterior femora pro- 

 duced beneath, smaller size, darker color, etc. 



Crabro (Crossoceros) cockerelli n. sp. 



9 . Length about 4^ mm. ; length of anterior wing 3^2 mm. Head 

 as wide as thorax, shining, impunctate or very finely punctured ; ocelli 

 in an equilateral triangle; the distance between the two hind ocelli 

 about equal to the distance to the nearest eye margin ; a distinct 

 furrow from the anterior ocellus to occiput ; furrow from anterior 

 ocellus to near the base of antennae not so strong as upper furrow, 

 sides more sloping; facial basin not distinctly defined; antennae slen- 

 der, not at all clavate; first joint of flagellum a little longer than 

 second; flagellum beneath with a row of very fine, rather short hairs; 

 clypeus rounded on outer margin, without teeth or middle promi- 

 nence; middle carina not distinct; pronotum with a low, rounded, in- 

 distinct ridge anteriorly, without teeth laterally, slightly notched in 



