HYMENOPTERA. 249 
callous point of the rib of the superior wings, and which forms a little 
black spot. They have two closed cubital cells, the first of which 
alone receives a recurrent nervure. The antennz are not genicu- 
late, their first joint being slightly elongated, and in the form of a re- 
versed cone. The mandibles are arcuated and terminated by two or 
three teeth *. 
There, the mandibles, at least in the females, are strong and bi- 
dentated on the inner side. The antenne are remote at base. 
Pampurepon, Lat. Fab.—Cermonvs, Jur., 
Where there are two complete sessile cubital cells, and another im- 
perfect one closed by the posterior edge of the wing. 
One species—the unicolor—feeds its larvee with Aphides +. 
Me .unus, Fab. Jur., 
Where there are three complete cubital cells, all sessile, and fre- 
quently the beginning of a fourth, which does not however reach the 
extremity of the wing; the first and the third receive, each, a recur- 
rent nervure. The abdomen is narrowed in the manner of a pedicle 
widened at its base. The tarsi are terminated by a large pellet t. In 
Auyson, Jur.—Pompitus, Fab., 
We also perceive three complete cubital cells; but the second is 
petiolate, and receives the two recurrent nervures. The base of the 
abdomen is not particularly narrowed. The terminal pellet of the 
tarsi is small §. 
The remaining Crabronites have their antenne inserted higher or 
near the middle of the anterior face of the head; they are usually 
thickest at the extremity, or even clavate. They all have three 
complete cubital cells, and two recurrent nervures. 
These Insects are connected by various characters with those of 
the following family. 
Sometimes the clypeus is almost square. The abdomen is borne 
on an abrupt, long pedicle, formed by the first ring. The mandibles 
terminate by two teeth. 
Psen, Lat. Jur.—Tryproxyton, PELoraus, Fab. || 
Sometimes the clypeus is as if trilobate. The first ring of the ab- 
domen is at most narrowed in the manner of a knot. The mandibles 
terminate in a simple point. The eyes are frequently somewhat 
emarginated. 
These Insects form the genus 
Puitanruus, Fab. 
The females make their nests in sand, and bury the bodies of Bees, 
Andrenetz, and even Cucurlionites, for the nourishment of their 
larve. 
* Lat., Gen. Crust. et Insect., IV, 84. 
+ Lat., [bid., 83, divis. I, and IT. 
+ Lat., Ibid., 85. 
§ Lat., Ibid., 86. 
|| Lat., Gen, Crust, et Insect., IV, 91. 
VOL, IV. 3 
