The Sphegoidea of Nebraska | 87 
Fairly common, ranging across the entire state. Glen, Craw- 
ford, West Point, and Lincoln, June, July, and August on flow- 
ers of Solidago, Mentzelia, and Spirea. I have also one specimen 
of the variety montana from Warbonnet canyon, July 21 (M. 
Cary). 
Oxybelus striatus Baker. 
1896. Oxybelus striatus Baker, Entomological News, vii, p. 60. 
Four specimens of both sexes were taken at Glen, August 14 
to 17, on Solidago*(P. R. Jones, H. S. Smith). 
Oxybelus robertsonii Baker. 
1896. Oxybelus robertsonu Baker, Entomological News, vii, p. 156. 
One male specimen from Warbonnet canyon, July 25, on Er- 
togonum I have referred to this species. 
Oxybelus apicatus, n. sp. 
6. Length 5.5 mm. Insect black, pubescence short and sparse, silvery; 
pubescence on face considerably longer than on any other portion of the 
body; facial and occipital punctures fine and fairly close, although not so 
dense as in the following species, those on the lower portion of the cheeks 
with fine striae; clypeal process very prominent; mandibles rufous, tips 
slightly darker; ocelli normal; scape of antennae dark, with a light spot 
beneath at the apex, flagellum light ferruginous. Prothorax rounded on 
the sides, with fine punctures, rather more sparse than on the mesothorax, 
and without white markings. Mesothorax with medium-sized close punc- 
tures, scutellum bicarinate; squamae practically touching each other, ter- 
minal points short and strong; postscutellar spine black, truncate and 
gradually but only slightly widened at the tip, concave above; pleura punc- 
tured as mesonotum, metapleura finely striato-punctate; posterior face of 
metathorax finely punctured, two longitudinal carinae joining to form one 
below, above making a triangular enclosure which is concave and impunc- 
tate within below, and convex and punctured above; a short carina sep- 
arates the posterior face from the metapleura, extending from the juncture 
of the abdomen one-third of the distance upwards. Abdomen finely and 
closely punctured dorsally, punctures sparse and irregular ventrally; seg- 
ments 1-4 with slight bands, these bands white apically and the remain- 
ing portion orange, the orange portion slightly interrupted in the middle; 
apical half of 5 and all of 6 and 7 bright rufous; apical plate strongly 
emarginate. Legs black, tibiae eee with tips lighter, tarsi light fer- 
ruginous, posterior and intermediate tibiae with stout light- ee spines. 
Wings hyaline, iridescent, nervures brownish. 
9. Unknown. 
Type, Warbonnet canyon, Sioux county, Nebraska, July 20, 
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