6 Psyche [February 
TWO NEW BEMBECIDS (HYMENOPTERA) FROM THE 
CHANNEL ISLANDS, CALIFORNIA. 
By Chas. L. Fov, San Fransico, Cal. 
Bembix hamata sp. nov. 
Male: Black; labmm, mandibles except apex, broad base and 
narrow lateral margins; clypeus; lower part of Irons between 
antennal bases (angled dorsally); scape below; broad anterior 
orbits much shortened above; very narrow posterior orbits, ab- 
breviated above and much shortened below at lower fourth of eye 
from mandibles; fascia on the first tergite reduced to small sub- 
ovate lateral spots; narrow undulate fascia on tergites 2-6, 
usually narrowly interrupted medially, except that on 6 which 
is continuous and strongly notched on posterior border; 
small spot on each side apical area of ultimate tergite, sometimes 
wanting, lateral spots of sternites 2-5, sometimes very small ones 
on 6, an apical wedge shaped stripe on femora above, longer on 
anterior pair, tibiae except black stripe on posterior surface and 
tarsi, all dull greenish yellow, the tarsi having a rusty tinge. Seg- 
ments 7-9 of flagellum sub-spinose on posterior border; segments 
9-11 bearing large open flat depressions, the ultimate segment a 
trifle longer than the preceding, only slightly curved, almost 
as broad at the roundedly truncate apex as at the base; inter- 
mediate femora below irregularly serrate-dentate; second ster- 
nite bearing a median hooked process distinctly higher than its 
basal length, much as in foxi, the sixth bearing a prominent ob- 
lique process narrowed and more produced posteriorly than in 
nubilipennis; this sternite also bearing a similar pair of rounded 
lateral processes or ridges; seventh sternite with a prominent 
median carina. Inner margins of the eyes nearly parallel. 
Flagellum tinged with fulvous below. Wings hyaline, veins dark 
brown. Head, thorax, median segment, base of abdomen, coxae, 
trochanters and femora clothed with dense long pale pubescence, 
becoming longer and white beneath, the rest of the abdomen 
shorter-pubescent. 
