HYMENOPTERA, 133 
tion of the antennz is higher up and on a level with the middle of 
the eyes. 
The Pelopzi construct rounded or globular nests of earth in the 
interior of houses. They are formed like a spirally convoluted cord 
presenting on their inferior side two or three ranges of holes, so 
that they resemble the instrument known in France by the name of 
a Tinker’s whistle—sifflet de chaudronnier. The holes are passages 
to as many cells, in each of which the Insect places the body of a 
Spider, Fly, &c., along with an egg; it then closes the orifice with 
earth. To this division belongs the 
P. spirifer; Sphex spirifex, L. Black; abdominal pedicle 
and legs yellow. In the south of France(1). 
4. In other Fossores the first segment of the thorax merely forms 
a simple linear and transverse border, of which the two lateral ex- 
tremities are remote from the origin of the superior wings. The 
legs are always short or of moderate Jength. The head viewed from 
above appears transversal, and the eyes extend to the posterior mar- 
gin. The abdomen forms an elongated semi-cone, rounded on the 
sides near its base. The labrum is entirely exposed or very salient. 
I have formed these Insects into a small family called BemBercipEs, 
from the genus 
BemsBex, Fab., 
Of which it is constituted. In these Hymenoptera, peculiar to 
hot climates, the body is elongated, pointed posteriorly, almost 
always varied with black and yellow or russet, and glabrous; the 
antenne are approximated at base, slightly geniculate at the second 
joint, and enlarging towards the extremity; the mandibles are nar- 
row, elongated, dentated on the inner side and crossed; the tibiz 
and tarsi are furnished with little spines or cilia, most remarkable 
on the anterior tarsi of the females. We frequently find one or two 
teeth under the abdomen of the males. Their motions are extremely 
rapid; they flit from flower to flower with a sharp and interrupted 
hum. Several diffuse an odour of roses. ‘They only appear in 
summer. 
Some of them have a false proboscis, bent underneath; their la- 
brum forms an elongated triangle. 
_ (1) See Fab., Lat., and Van der Linden. 
