XXI. CRABRO. 175 
central longitudinal incisure, broadest at its base, and narrowing 
towards its apex, where it dilates into a fossulet, the impression 
enclosing it consute; the posterior portion of the metathorax 
also smooth and shining, its lateral edges having highly raised 
ridges ; the posterior portion of the peristethium with a minute 
tooth on each side; the collar with a small yellow spot on each 
side, sometimes wanting; the tegule testaceous ; the extreme 
base of the wings yellow; the wings subiridescent, slightly 
clouded beyond their middle, their nervures piceous; the legs 
black, with the anterior and intermediate tibiz in front, and a 
ring at the base of the posterior ones, yellow; the tarsi rufo- 
piceous, their basal joint pale ; the anterior tarsi slightly ciliated, 
and the tibiz spinose. 
The abdomen elongato-ovate, slightly narrower than the tho- 
rax, black, subpubescent, shining, sometimes the margin of the 
posterior segments piceous, and the apex of the last ferru- 
ginous 9. 
The ¢ differs in sometimes wanting the yellow spots on the 
collar ; the intermediate femora having a yellow stain beneath, 
the yellow ring at the base of the posterior tibiz smaller, the 
four anterior tarsi piceous, and the posterior pair black. 
$ @ in my own Collection. 
+44 I have taken both sexes of this insect in Battersea 
Fields. It approaches a good deal to my C. spinipectus. 
Spe. 33. Brevis. V.d. Lind. 
miger, stemmatibus in lineam curvam positis, metathoracis basi 
levi, abdomine thoracis longitudine, basi subtruncato g @. 
: length 2—22 lines. 
V.d. Lind. pt. 2. 70. 32. 
Lindenius brevis. St. Farg. 3. 800. 10. 
Head wider than the thorax, black, shining, loosely but 
deeply punctured; the stemmata placed in a curve about the 
centre of the vertex, an oblique smooth depression on each side 
towards the front of the posterior ones, which have a short lon- 
