290 Mr. i*. Saunders’ Synopsis of 
ORTHOTYLUS. 
I. Elytra without black hairs. 
A. Species brownish-grey, with yellow markings.. Dilineatus. 
AA. Species green. 
B. Cell nerves of membrane green. 
C. First joint of antenne black beneath .. .. striicornis. 
CC. First joint of antennz not black beneath. 
D. Apical joint of antenne not nearly half so long 
as the third ae ar oe : +. prasinus. 
DD. Apical joint of antenne half as long as, or 
nearly half as long as, the third. 
a. Smaller, elytra very thin and diaphanous diaphanus. 
b. Larger, elytra not thin and diaphanous.. nassatus. 
BB. Cell nerves of membrane yellow or pale. 
C. Apical joint of antenne half as long as third.. flavinervis. 
CC. Apical joint of antenne not nearly half as long 
as third .. oe ee oe oe .. tenellus. 
YI. Elytra with black bristly hairs, mixed with the paler 
pubescence. 
A. Cells of membrane green 50 on .. flavosparsus. 
AA. Cells of membrane not green. 
A*, Species greenish-grey .. le oe -- Saundersi. 
A*A*, Species green. 
B. Third and fourth joints of antennz together not 
so long as second 50 es Oe -- Douglas. 
BB. Third and fourth joints of antenne longer than 
second. 
C. Rostrum not reaching the posterior coxe; 
posterior thighs not much thickened. 
D. Second and third joints of antennze subequal, 
not short and robust. Found on the furze 
and broom on heaths, &c. 
a. Head not very wide, not nearly so wide 
as the base of the thorax ae +» concolor. 
b. Head very wide, nearly as wide as the 
base of the thorax a oe -- chloropterus. 
DD. Second joint of antennz decidedly longer than 
third; short and stout; found in salt marshes.. vuwbidus. 
CC. Rostrum reaching beyond the posterior cox; 
posterior thighs much thickened an -. ericetorum. 
1. bilineatus, Fall. (Gen. torhinus, Dougl. & Scott.) 
Greyish-brown; covered with a short pale pubescence. 
Head yellowish, with the dorsal line and a spot in front 
brown. Thorax dark brown in front and narrowly so at 
the sides, paler posteriorly; sides slightly sinuate. Scu- 
