CATALOGUE 
OF 
HEMIPTEEA HETEROPTERA. 
PAKT IV. 
HEMIPTERA. 
A. Rostrum projecting from the front. Fore 
wings generally in two parts, the basal 
part coriaceous, the outer part mem- 
branous. ------ 1. Heteroptera. 
B. Rostrum projecting from the lower part of 
the head. Fore wings generally coriaceous 
or entirely membranous. ... 2. Homoptera. 
HETEROPTERA. 
A. Antennte prominent. - _ - - i, Geocorisa. 
B. Antennae hidden. ----- 2 . Htdrocorisa. 
GEOCORISA. 
A. Antennae inserted under a lateral rim of the 
head. Scutellum long. - - - 
B. Antennae inserted on the upper side of the 
head. Membrane of the fore wings always 
with more than five veins. - - - 
C. Antennae inserted on the lower side of the 
head. Third joint of the rostrum longer 
than the fourth. Membrane of the fore 
wings with not more than five veins. 
D. No ocelli. ------ 
E. No ocelli. Two last joints of the antennae 
setiform. Membrane of the fore wings 
with two basal areolets, and without any 
other veins. - 
2 . 
3. 
1. SCDTATA. 
SUPERICORNIA. 
Infericornia. 
4. Cecigena. 
5. Bicellula. 
B 
