186 LTemiptera-THeteroptera. 
(5) 4. Antenne very long and thin, clothed 
with long hairs, third and fourth 
joints together twice as long as the 
first and second . Si CERATOCOMBINA. 
(4) 5. Antenne not very thin, not clothed with 
long hairs, and third and fourth 
joints not nearly twice as long as the 
first and second . . ANTHOCORINA. 
(1) 6. Rostrum four-jointed, tarsi two- jointed . Microrpysina. 
CIMICINA. 
CIMEX, Lin. 
Of this genus we have four British species, which may 
be known at once from those of any other genus by their 
flat, broad, oval form; the absence of ocelli; the broad, 
truncate central lobe of the face, the short, scale-like elytra. 
and the reflexed margined pronotum, whose greatest width 
is in front, and whose anterior margin is very deeply 
sinuate; rostrum short, reaching to about the anterior 
coxe, received in repose into a groove on the underside of 
the head ; antenne with the third and fourth joints much 
thinner than the first and second and filiform ; legs simple, 
tarsi three-jointed ; mesosternum with a trapeziform plate, 
the wide end of which projects over the metasternum 
between the posterior coxe, 
(4) 1. Clothed with short hairs, sides of pronotum 
widely dilated and reflexed, especially in 
front. 
(3) 2. Larger, fourth joint of antennz two-thirds as 
long as third. . LECTULARIUS. 
(2) 
3. Smaller, fourth joint ‘of antennw three- 
fourths as long as third. . COLUMBARIUS. 
(1) 4. Clothed with long hairs, sides of pronotum 
narrowly reflexed. 
(6) 5. Larger, clothed with silky hairs, third joint 
of antenne longer than fourth . PIPISTRELLL. 
(5) 6. Smaller, clothed with somewhat bristly hairs, 
third and fourth antennal joints subequal. HIRUNDINIS. 
C. lectularius, Lin.—Entirely of a reddish brown or 
brownish yellow colour, closely and deeply punctured, 
sparingly clothed with short, pale hairs. Head with the 
