XXI. CRABRO, 161 
triangle équilatéral,’ but he would probably have placed 
it in the repository Crossocerus, where, notwithstanding the 
characters he has laid down, he inserts insects with both an 
acuminate and channelled anus, and with mcrassated pos- 
terior tibiz. See the observations under the preceding 
species, to which this is closely allied in general habit. I 
have taken it, but rarely, in Battersea Fields, and I have 
not observed it in any other collection. 
Sp, 21. Hyaxinus. Steph. 
niger, elongatus, metathorace antice oblique striato, mandibulis 
nigris, genibus quatuor posticis tantim flavis 9. 
length 33 lines. 
Stephens’s MS. and Systematic Catalogue, pt. 1. 365. 4961. 33. 
Head black, punctured ; the stemmata placed in a triangle on 
the vertex, an impressed line between the posterior ones, but not 
extending beyond them, and another in front of the anterior 
one reaching to the face; the antenne black, the side of the 
scape fulvescent; the clypeus covered with a silvery down; the 
mandibles black, with their apex piceous. 
The thorax black, punctured; the metathorax with the en- 
closed space at its base obliquely striated, with a central longi- 
tudinal consute incisure; the posterior portion of the meta- 
thorax transversely striate; the tegule piceous; the wings 
hyaline, their nervures piceous; the legs black, the anterior 
tibiz in front, and the knees of the others, yellow, the tarsi 
piceous, with their basal joint yellow, the anterior pair simple, 
but all the tibize spinose. 
The abdomen black, subpubescent, shining 9. 
The ¢ Lam unacquainted with. 
¢ in Mr. Stephens’s Cabinet. 
+14 This is not described by St. Fargeau, but would 
come into his genus Crossocerus. 
M 
