Cimicide. 187 
eyes prominent, antennee with the first joint short and 
thick, the second and third subequal in length, the fourth 
about two-thirds as long as the third, the third and fourth 
very thin and clothed with long, fine hairs ; pronotum with 
the anterior margin very deeply sinuate so as to receive 
the head nearly to the eyes, its sides rounded, dilated 
and reflexed, especially in front, and fringed with short 
hairs, base slightly sinuate, disc somewhat shining, very 
slightly convex longitudinally ; scutellum very short and 
transverse ; elytra in one piece, truncate posteriorly, twice 
as wide as long, about as long as the first abdominal seg- 
ment, very largely punctured; abdomen short, oval, flat, 
more finely punctured than the elytra; connexivum 
narrowly reflexed ; legs slightly paler than the rest of the 
body. 
L. 5-6 mm. 
Too common in dirty houses, especially in large towns. 
C. columbarius, Jen.—Very like the preceding, but 
rather smaller, the third and fourth joints of the antenne 
distinctly thicker and their pilosity not so long, the fourth 
being nearly three-fourths the length of the third; the 
second joint is also more thickened to the apex ; the pro- 
notum is more transverse and wider in proportion to the 
abdomen, and the sides of the latter diverge more rapidly 
from the base. 
L. 44-5 mm. 
In pigeon cots. Alford, Lincolnshire, abundant, J. B. 
Mason. 
C. hirundinis, Jen.—Smaller than either of the pre- 
ceding, with much longer pubescence and quite different 
in the shape of the pronotum and head. Pale testaceous 
or brown, eyes not prominent, central lobe of the face less 
narrowed posteriorly, antenne with the third and fourth 
joints subequal ; pronotum with the anterior margin nearly 
straight in the middle, produced at the angles, which touch 
or almost touch the eyes, sides narrowly reflexed through- 
