The Sphegoidea of Nebraska 35 
Coloration as follows: scape of antennae black, white beneath and with 
a white dot apically above; pedicellum black; flagellum black, first joint 
white beneath, remaining joints fulvous beneath; mandibles except tips, 
clypeus except a black dot at the place where the posterior and lateral 
lobes join, sides of face up to emargination of eyes, lobe between antennae 
extending to the same height, narrow elongate spot back of eyes, collar 
of prothorax entirely, tubercles, spot back of them, tegulae and base of 
anterior wing, postscutellum, irregular mark on scutellum in type, rather 
broad irregular interrupted band on first dorsal segment, entire band on 
second segment, irregular in front and with two notches posteriorly, nar- 
row apical bands on three following segments broadened laterally, two 
dots on base of pygidium, tibiae excepting within, femora apically, all 
white with a faint greenish tint; anterior tarsi fuscous, intermediate and 
posterior ones piceous, spines paler; wings fuscous. 
6. Unknown. 
Type, Glen, Sioux county, Nebraska, altitude 4,000 ft., August 
17, 1906, on Solidago sp. (H. S. Smith); paratype, same label 
¢& BR. Jones). 
This species is quite robust in form, and the puncturation and 
dark tarsi serve to distinguish it. 
Philanthus bilunatus Cresson. 
1865. Philanthus bilunatus Cresson, Proceedings of the Entomological 
Society of Philadelphia, v, p. 97. 
A common species ranging across the entire state but occur- 
ring most abundantly in the northwestern corner. The collection 
includes specimens from Glen and Warbonnet canyon in Sioux 
county, Carns, Lincoln, and Weeping Water. These were taken 
during the months of July and August, and have been found at 
flowers of Helianthus and Monarda. This species is distinct from 
any other form found in Nebraska by the practically impunctate 
body. 
Philanthus flavifrons Cresson. 
1865. Philanthus flavifrons Cresson, Proceedings of the Entomological 
Society of Philadelphia, v, p. 102. 
Three specimens of this species were taken by Mr. Carriker on 
Indian creek, in Sioux county, July 12, 1901, at flowers of Malva 
sp. Distinct by the yellow venter and peculiarly marked and 
sculptured head, which is densely striato-punctate in front below 
the ocelli, and almost impunctate back of them. 
357 
