16 Annals Entomological Society of America [Vol. V, 
Cerceris ampla n. sp. 
2 Reddish; face yellow; tips of mandibles black; vertex reddish, 
two elongate yellow spots, and a long yellow patch behind the eyes; 
antenne rufous on basal half, rest black; large spots on pronotum, 
tegule, about five large spots on pleurz; scutellum and post-scutellum, 
metanotum on sides, and the enclosure, yellow; first segment of abdo- 
men mostly yellow, others with apical yellow bands, very broad on sides 
of second segment, fourth, fifth, and sixth segments mostly black; 
venter red on base, black beyond, apical segments with broad apical 
band of short tawny hairs; legs mostly yellow and rufous, hind femora 
black behind, and a spot on the middle tibia. Wings fuscous on 
anterior half, stigma yellowish. Body coarsely, confluently punctured. 
Clypeal process prominent, apex rounded, (as figured) a lateral process 
on each side-lobe, not erect, and seen from the side as broad at tip as at 
base; lower edge of clypeus with two teeth near the middle; ocellar 
triangle very low, rather forming a curved line; enclosure swollen, 
broad, smooth in the middle, punctate on the sides; first segment of 
abdomen with nearly parallel sides, hardly one-half as wide as the 
second segment; pygidial area about twice as long as broad, the sides 
nearly parallel, but a little bowed outward near base. 
The male is colored similar to the female, but more black, especially 
on the thorax, the metanotum mostly black, side stripes yellow, and a 
spot on the enclosure, front and middle femora above and hind femora 
mostly black, tibia black on apical half. Middle joints of antennz very 
short, last two joints very long subequal, the last curved, but not 
tapering; the hair-lobes scarcely more than breadth apart; pygidial area 
scarcely as long as broad, the apex undulate. 
Length 9 22 mm., co’ 18 mm. 
From Fedor, Lee County, Texas, (Birkmann) Mr. Rohwer 
had given this name, but has not published a description. It 
is related to hebes Cam., bidentata Say, and macrosticta Vier, & 
Ckll., but differs in several points from each of them. 
Cerceris bicornuta Guerin. 
From Southern Pines, N. Car. The pygidial area of the 
female is two and one-half times as long as broad, and very 
much narrowed near base. It is allied to C. frontata by shape 
of the clypeal process. 
Cerceris frontata Say. 
This is a Western species, but was described fron ‘‘ Arkan- 
sas’’; I have it from Palmerlee, Arizona. The pygidial area of 
female is of the same shape as in C. ampla. The radius of the 
wing is black until a little before the stigma, other veins yel- 
lowish. 
