234 LLemiptera-fleteroptera. 
minent, round, face nearly vertical except in wlimi and 
varipes, basal joint of the antenne elongate, with a few 
bristly hairs on its inner margin, rostrum reaching beyond 
the base of the abdomen; pronotum trapezoidal, its anterior 
margin callosely raised; scutellum convex; elytra more or 
less elongate, parallel-sided or shghtly rounded. Membrane 
irrorated with fine black spots, giving it a mottled appear- 
ance; legs with the posterior femora elongate and slightly 
thickened, tibiae elongate, with a row of fine hair-like 
bristles along their outer margin. 
We have eight species in this country of the forty-one 
recorded by Puton as Palearctic; but the majority of 
these are meridional and quite unlikely to occur with us. 
(12) Intermediate tibiw with transverse bands. 
(3) Basal joint of the antenne with three 
longitudinal black stripes : POPULL 
(2) 3. Basal joint of the antenna marbled with 
black, but without black longitudinal 
lines. 
(7) 4. Black bands of the intermediate tibix 
narrower than the intervening white 
spaces. 
(6) 5. Sides of pronotum nearly always widely 
black, elytra not very long,clearly mottled 
with black except in extreme varieties, 
posterior femora normal . TILIA. 
(5) 6. Sides of pronotum not widely black, elytra 
very long and obscurely mottled, pos- 
terior femora very long and slender . LONGIPENNIS, 
(4) 7. Black bands of the intermediate tibiaw 
wider than the intervening white ones. 
(9) 8. First joint of the antennae longer than the 
9 
alo 
fourth DIMIDIATUS. 
(8) First joint of the antennz subequal to or 
shorter than the fourth. 
(11) 10. First joint of the antenne nearly as long 
as the head and pronotum together . ReEvreni. 
(10) 11. First joint of the antennz not nearly so 
long as the head and pronotum together. PINI. 
(1) 12. Intermediate tibiew without transverse 
bands. 
(14) 18. Basal joint of antennz with long bristly 
hairs not thickened . ULMI. 
(13) 14. Basal joint of antenna slightly thickened, 
bristles very short and fine. ; . VARIPES. 
