IX. AMMOPHILA. 73 
The abdomen black, opaque; with the first and second seg- 
ments, and the base of the third, red; and the base of the first 
and second slightly covered with a silky pubescence 9. 
The ¢ differs in having the anterior part of the face, except- 
ing the clypeus, the metathorax, under part of the thorax, the 
coxee, and trochanters, all covered with a dense silvery pubes- 
cence, and the margin of the first and base of the second seg- 
ment rufo-piceous. 
$ ¢ in the Cabinet of Mr. Curtis. 
g in Mr. Stephens’ and of 
the British Museum. 
+1; Taken by Mr. Dale, in Dorsetshire. This insect 
appears to be rare in Cabinets. I have as yet been unsuc- 
cessful in obtaining a British specimen. 
Famity IV. 
SPHECID. Leach. 
Prothorax forming a sort of neck, very distinctly sepa- 
rated from the mesothorax, narrowed in front. The base 
of the abdomen constricted into a long petiole. Mandibles 
internally dentate. 
1. The oral organs forming a sort of proboscis longer than the 
head, geniculated at about one half their length. Palpi slender, 
their joints cylindrical. 
Genus IX. Ammopuizta. Kirby. 
Heap suborbiculate, subdepressed, wider than the thorax, par- 
ticularly in the ? ; eyes oval, distant; the stemmata placed in 
a triangle on the vertex ; antenne filiform, arcuate in the ¢, 
slightly curved in the ¢, inserted in the middle of the anterior 
part of the face, all the joints cylindrical, with the exception 
of the two first, the first being subovate, the second globose, the 
