48 Harry Scott Smith 
Cerceris insolita Cresson. 
1865. Cerceris insolita Cresson, Proceedings of the Entomological So- 
ciety of Philadelphia, v, p. 129. 
Glen, August 12, 1906 (H. S. Smith) ; West Point, June 28, 
1906 (P. R. Jones) ; Carns, July 24 (W. D. Pierce). So far as 
is known to the writer the female of this species has never been 
described, and differs from the male as follows: the legs are al- 
most entirely reddish, the hind femora having a darker spot be- 
hind and the posterior tarsi dusky; the yellow markings are all 
heavier; the median lobe of clypeus is strongly bulging outward 
but not raised anteriorly; the sides of the face, connected below 
the antennae by a narrow line which is produced medially toward 
antennae, a spot on the disk of the clypeus, a spot on the lateral 
lobes, and the base of the mandibles, yellow. This species is 
readily recognized by the immaculate second dorsal segment of 
the abdomen. 
Cerceris rufinoda Cresson. 
1865. Cerceris rufinoda Cresson, Proceedings of the Entomological 
Society of Philadelphia, v, p. 121. 
Inhabits the entire state, the collection containing specimens 
from Glen, Crawford, Carns, Gering, and Lincoln, July and Au- 
gust, on flowers of Cleome serrulata, Mentzelia sp., Solidago sp., 
Helianthus sp., and Euphorbia marginata. This species is quite 
variable in size and markings; two specimens have the red of the 
first abdominal segment obscure, almost wanting. 
Cerceris rufinoda crucis Viereck and Cockerell. 
1904. Cerceris rufinoda var. crucis Viereck and Cockerell, Journal of 
the New York Entomological Society, xii, p. 139. 
Glen, August 17, on Solidago sp. (H. S. Smith) ; Neligh, Au- 
cust 8, on Verbena sp. (M. Cary). Quite variable in facial mark- 
ings, one specimen having the entire face, including the clypeus, 
white. 
Cerceris finitima Cresson. 
1865. Cerceris finitima Cresson, Proceedings of the Entomological 
Society of Philadelphia, v, p. 122. 
Entire state, June to August, at Cleome serrulata, Carduus sp., 
and Euphorbia marginata, 
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