The Sphegoidea of Nebraska 79 
1895. Crabro vicinus Fox, Transactions of the American Entomolog- 
ical Society, xxii, p. 170. 
Four females, also from Glen and Warbonnet canyon, during 
the month of August. 
Crabro lentus Fox. 
1895. Crabro lentus Fox, Transactions of the American Entomological 
Society, xxii, p. 190. 
One female from West Point in June (P. R. Jones). 
Crabro incavus Fox. 
1895. Crabro incavus Fox, Transactions of the American Entomolog-. 
ical Society, xxii, p. 188. 
A single female of this species from the same locality (H. S. 
Smith). 
Crabro scutellifer Dalla Torre. 
1824. Crabro scutellatus Say, Long’s Expedition, ii, Appendix, p. 341 
(not of Scheven). 
1859. Crabro scutellatus Say, Leconte edition, i, p. 230. 
1895. Crabro scutellatus Fox, Transactions of the American Ento- 
mological Society, xxii, p. 190. 
Two females of this species were taken at Glen, on August 13, 
1906 (H. S. Smith). 
Crabro vierecki, n. sp. 
?. Length 7.5 mm. Head black, finely punctured throughout; front with | 
a deep median furrow extending from base of clypeus to anterior ocellus; 
ocelli almost forming an equilateral triangle, space between lateral ones 
greater, however, than that between them and the anterior one; the space 
between the lateral ocelli is one-half that between them and the nearest 
eye margin; supraorbital foveae indicated by broad depressions; antennae 
dark, scape long and yellow anteriorly’; clypeus three or four times longer 
than broad, and clothed with a dense coat of silvery white pubescence, 
anterior margin with six distinct teeth; mandibles rufous, bluntly rounded 
at the ends; cheeks beneath with a long tooth. Prothorax long, strongly 
sulcate and carinate, lateral angles quite prominent, and with two yellow 
spots; sides and top of prothorax with longitudinal rugae. Mesothorax 
finely punctured, anteriorly with indications of three longitudinal ridges; 
scutellum finely punctured, postscutellum white, tubercles white. Meta- 
notum longitudinally striate, the truncation foveolated, the posterior face 
faintly rugose; metapleura almost smooth, mesopleura finely punctured 
and shining, each with a dimple-like depression just beneath the tegulae, 
and with scattered silvery hairs. Abdomen shining, almost impunctate, 
4OI 
