162 Flenuptera-Fleteroptera. 
long and narrow; membrane very large, hardly differing 
from the corium in texture, its nervures enclosing two large 
cells; anterior femora slightly incrassated, their  tibize 
widened at the apex; coxee not very remote, but the pos- 
terior pair more so than the others; male with one genital 
segment visible, female with three. 
R. personatus, Linn.—Pitchy brown, inclining to black, 
clothed with fine hairs, shining. Antenne with the second 
joint about twice the length of the first, second and third 
subequal, fourth rather shorter ; ocelli prominent, yellowish ; 
pronotum with the anterior angles prominent, the anterior 
margin raised, considerably wider than the base of the head ; 
pronotum raised, rounded and smooth in front, transversely 
wrinkled behind ; transverse impression moderately deep, 
dorsal one wide posteriorly, and very deep; base rounded ; 
scutellum with a triangular impression at the base; elytra 
brown; legs with the extreme base of each tibia pale. 
L. 16-17 mm. 
Generally distributed, but apparently nowhere common. 
It is a destroyer of other insects, and is said to feed on 
Cimex lectularius, Diptera, ete. It is probably chiefly a 
night feeder, as it often flies to light in windows, etc. 
CORANUS, Curt. 
Head wide across the eyes, which are very prominent, 
gradually narrowing posteriorly to the pronotum ; face 
long, declivous in front; antenniferous tubercles situated 
in front of the eyes; antennz, first joint very short, second 
subequal to-the fifth, third and fourth together about 
equal to the first, third slightly shorter than the fourth ; 
between the eyes is a deep curved impression, behind which 
are placed the ocelli; rostram thick, curved, reaching to 
about the middle of the prosternum ; pronotum widened 
posteriorly, deeply constricted in the centre, its anterior 
margin straight; base sinuate; scutellum raised into a 
