198 CRABRONIDZ. 
Sectio 2. The petiole of the abdomen short, the second sub- 
marginal cell widest towards the marginal. 
Sp. 3. morio. V.d. Lind. 
ater, marginis metathoracis summo levi, abdominis petiolo brevi. 
length 24—3 lines. 
V. d. Linden, pt. 2. 82. 5. 
Entirely biack, head punctured, pubescent, shining ; an obtuse 
tubercle, slightly emarginate at the apex, in the centre of the 
face, just above the insertion of the antennz, and the face on 
each side between it and the eyes very prominent; the clypeus 
tridentate, the central tooth obsolete ; labrum large, prominent, 
triangular, convex, but canaliculated down the centre; mandi- 
bles bidentate at the apex, where they are rufescent. 
The thorax pubescent, shining ; the sides of the pectus rugose ; 
the peristethium obsoletely transversely wrinkled, and a deep 
longitudinal depression down the centre, in the middle of which 
there is an elevated line; metathorax rugose, excepting a broad, 
smooth, and shining margin to the subcordiform space; wings 
hyaline, or but slightly tinged, the nervures piceous ; the second 
submarginal cell not so square as in the P. /ugubris, and widest 
towards the marginal cell; legs entirely simple. 
The abdomen hirsute, especially the terminal segments ; the 
petiole very short, being about one half the length of the re- 
mainder of the first segment, rugose, canaliculated down the 
centre; the extreme margin of the two or three last segments 
frequently piceous ¢. 
The ¢ differs in the tubercle of the face being less obtuse 
and not emarginate, and in the mandibles being tridentate. 
é ¢ in my own Collection. 
+--+ Of this insect, which may be henceforth considered 
the type of the genus Ceratophorus, I have taken both 
sexes in Battersea Fields; but I have not been able to 
ascertain its habits, nor did I detect its being a British 
