1912] _ Eastern Species of Cerceris 23 
in the male; pygidial area about two and a fourth times longer than 
broad, sides sub-parallel, but narrowed at tip. 
From Falls Church, Va., 5 June on Ceanothus. Related to 
C. fasciola, but with broader abdomen, different clypeus, and 
more coarsely punctate, especially on metanotum and abdomen. 
Cerceris fasciola Cress. 
_ Described from Texas; I have a pair from Lee County. The 
pygidial area of the male is about twice as long as broad, the 
sides parallel, the tip truncate. The hair-lobes are plainly 
more than twice their breadth apart. The female in structure 
is near C. nigrescens, but the smooth enclosure ,and mostly 
yellow legs will easily separate it. 
Cerceris insolita Cress. 
From Falls Church, Va., 30 July, and Lee County, Texas, 
July. In the male the hair-lobes are very broad, so that they 
are hardly more than one-half their breadth apart; the clypeus 
shows two little black spots at apex; the last joint of antennz 
is thick and short; the pygidial area is less than twice as long 
as broad, the sides parallel, tip truncate, surface coarsely punc- 
tate, but scarcely hairy; on the venter the third segment shows 
a yellow band. C. obsoleta of Mexico is very close to this 
species. 
Cerceris zelica n. sp. 
co Black, basal part of mandibles, face (except little black spot 
at tip of clypeus) inter-antennal streak nearly reaching the ocelli, two 
spots on vertex, spot behind eye, pronotum all across, tegule, spot 
beneath wings, scutellum, and spot on post-scutellum, broad stripes on 
mesonotum, median spot on basal segment of abdomen, bands on other 
segments, yellow. Band on second segment broader than others, all 
narrowed in middle; venter with spots each side, some connected by 
lines; scape yellow, first joint of flagellum brown, rest rufous, but black 
above beyond base; legs all yellowish. Body coarsely punctate; 
clypeus rounded in middle below, hairy each side, truncate above; hair- 
lobes fully three times their breadth apart; antennz high above clypeus; 
second joint of flagellum longer than the third, apical not much longer 
than the preceding, tapering, not concave within. Enclosure mostly 
smooth, a median groove, and punctate on sides; abdomen rather 
broad, the segments strongly constricted at base, first segment plainly 
broader than long; pygidial area once and two-thirds as long as broad 
at base, narrowed to tip, which has prominent angles, surface coarsely 
punctate; venter nearly smooth, punctate a little on sides. 
Length 12 mm. 
