XII. DOLICHURUS. 85 
Sp. 1. cornicutus. Spin. 
ater, nitidus, immaculatus 4 9. 
length 3—43 lines. 
St. Fargeau, Ency. Méth. 10. 450. 
Pompilus corniculus. Spin. 2. 52. 
Pison ater. Lat. Gen. 4. 58. 
Dolichurus ater. Lat. ib. 387; V.d. L. pt. 1. 95. 
Black: head subpubescent, deeply punctured. 
Thorax deeply punctured ; the dorsolum having on each side 
a longitudinal impression which terminates suddenly near the 
suture that separates it from the scutellum ; the metathorax with 
its superior surface enclosed by an elevated line forming a trun- 
cated triangle, the interior whereof is occupied by three irregular 
longitudinal carinee, between which and at the sides it is trans- 
versely wrinkled; the tegule rufo-piceous; the wings slightly 
coloured; the legs covered with a short pubescence ; the tibize 
and tarsi simple, and the latter with the apex of their joints 
rufo-piceous. 
Abdomen smooth, shining, the posterior margin of the seg- 
ments rufo-piceous. 
The ¢ differs only in having the abdomen slightly punctured. 
$ and Q in the Cabinet of the Brit. Mus. 
+14 It was somewhat difficult to decide which might be 
specific characters, having only one specimen of each sex 
to examine; but I have taken such as are generally so, viz. 
the sculpture. I shall be happy if the discovery of a second 
species should prove me wrong, hitherto but one specimen 
of each sex has occurred; they were taken by Dr. Leach 
many years ago, I believe in Devonshire. 
Famity VI. 
LARRID#. Leach. 
The labrum entirely concealed, or but slightly exserted. 
