CC 
British Hemip tera-Heteroptera. O55 
. Head much broader than long. 
a. Elongate, depressed, smooth fs .. TLeratocoris. 
b. Elongate, not depressed, covered with long 
hairs oe ye ee ae .. Leptopterna. 
AA. First joint of tarsi not longer than second .. Pantilius. 
II. Head not channelled or transversely impressed. 
A 
_ Thorax with the anterior margin raised and 
rounded, or constricted into a short, co!lar- 
like neck, or much constricted in front and 
much raised and widened behind, with the 
posterior margin largely emarginate, the 
callosities often very prominent. 
B. Thorax not much raised posteriorly, base not 
widely emarginate. 
C. Membrane with two cells. 
D. Sides of the thorax sharp in front .. .. Lops. 
DD. Sides of the thorax not sharp in front. 
KE. Neck more or less swollen, head not divided 
from the neck by a carina, or raised line. 
F. Membrane marbled .- ar .s .. Phytocoris. 
FF. Membrane not marbled. 
G. Rostrum extending beyond the posterior coxe. 
a. Posterior tibie long; nearly twice as long 
as the intermediate ones aie .. Miridius. 
b. Posterior tibize not so long; not more than 
once and a half as long as the posterior 
ones Sc Ac 20 56 .. Oncognathus. 
GG. Rostrum not extending beyond the posterior 
Coxe. 
H. Species not deeply punctured, or rugose. 
a. Second joint of antennx not clavate -. Calocoris. 
b. Second joint of antenne thickly clavate. . Rhopalotomus. 
TH. Species deeply punctured, or rugose. 
a. Species glabrous .- a0 ar -» Capsus. 
b. Species hairy > oe ae .. Bothynotus. 
EE. Neck not swollen, head carinated posteriorly. 
¥. Carina visible only near the eye on each side. 
a. Suboval, third and fourth joints of antennz 
subequal .. s aC er .. Liocoris. 
b. Subelongate, fourth joint much shorter 
than third at = se .. Dichrooscytus. 
FF. Carina visible throughout. 
. Species covered with golden, deciduous, 
scattered pubescence ee oe .. Paeciloscytus. 
. Species not covered with golden pubescence. 
. Species more or less pubescent. 
. Vertex very wide ne ae on -« Hadrodema. 
. Vertex not very wide. 
a. Thorax transyersely rugose ar .» Plesiocoris. 
b. Thorax not transversely rugose .. .. Lygus. 
