VI. POMPILUS, 47 
since received the 9 from Mr. Bakewell, who informed me 
that Dr. Howitt captured several near Nottingham, and my 
friend Mr. Smith found three ¢ near Wakefield, in York- 
shire, in June last. It is thus evidently dispersed and only 
wants looking for to be found in equal abundance with the 
S.punctata. I follow Mr. Curtis in adopting Linné’s name, 
since all doubt is removed as to the identity of his insect with 
Fabricius’ S. prisma, by its still being pinned through the 
label, in his own handwriting, in his collection now at the 
Linnean Society, besides which his description agrees much 
better with this insect than with any other. Latreille sus- 
pects them to be parasitic upon some of the wild bees which 
build in old wood; he found this species about the stumps 
of trees. 
2. The following have their posterior legs at least as long as 
the head and thorax. The antenne of the ? formed of long 
joints generally distinct and often arcuate. 
Famity III. 
POMPILID. Leach. 
Prothorax transverse, at least as broad again as long, 
with its posterior margin arcuate. The abdomen obovoid, 
without any contraction, in the shape of a long petiole, at 
its base. 
Genus VI. Pompitus. Fab. Lat. 
Heap transverse, of the width of the thorax; eyes lateral, 
oblong; stemmata placed in a triangle on the vertex ; antenne 
setaceous, long, inserted in the middle of the anterior part of 
the face and approximate,—the first joint thick, the second 
very short, the rest cylindrical, the third the longest and the rest 
regularly decreasing in length, in the ¢ conyolute, and slightly 
