156 CRABRONID®. 
cation of the metathorax transversely striated; the wings hyaline, 
iridescent, their nervures piceous ; the legs black, with the four 
anterior femora and tibiz yellow in front, and the extreme base 
of the posterior tibiz pale; the tarsi piceous, and the calearia 
pale testaceous. 
The abdomen has a slight silvery pubescence, and the dorsal 
margin of the two basal segments are somewhat constricted @. 
The @ I am unacquainted with. 
@ in my own Cabinet. 
+47 Taken in the vicinity of London, where it is not 
uncommon : it occurs in company with the C. elongatulus, 
V. d. Lind., of which it is perhaps only a variety. 
Sp. 18. vroximus. N. Sp. 
niger, elongatus, metathorace antice obliqué striato, mandibulis 
testaceis, tebiis (quatuor anticis exlis nigris), tarsisque flavis 8 . 
length 21 lines. 
Head black, punctured ; the stemmata placed in an equilateral 
triangle in the centre of the vertex, an oblique smooth depres- 
sion on each side of the posterior ones, and a longitudinal im- 
pression between them extending just beyond, another in front 
reaching the face, which is canaliculated; the antenne simple, 
black, the scape in front yellow, and the clavolet fimbriated 
beneath ; the inner orbits of the eyes and clypeus covered with a 
dense silvery pubescence; the mandibles black at their base, 
then testaceous, and their apex rufescent. 
The thorax black, shining, with scattered minute punctures ; 
the dorsolum with two central parallel obsolete carinze extending 
to the disk; the metathorax with a consute cruciform incisure, 
its anterior portion obliquely striate, and posterior transversely 
so, a minute dot on each side of the collar, and the tubercles 
yellow; the tegule testaceous; the wings hyaline, iridescent, 
their nervures testaceous; the legs yellow, with the anterior 
