HOMOPTERA. 
717 
also probably common, while one other species is recorded from 
Ceylon. 
HOMOPTERA. 
The front of the head is bent so as to be in contact with the fore 
coxae. The tegmina are of one consistence throughout 
and lie over the abdomen at an angle. 
While there is little doubt that from the field naturalist’s point of 
view there should be at least nine families in this sub-order, on structural 
Fig. 493—1, 2, Oioadidae. Three ocelli on vertex. 3, 4, Fulgoridse. Two ocelli beneath 
or near the eyes; Antennae beneath the eyes. 5, 6. Membracidae. Antennae 
in front of and between eyes; Ocelli between the eyes. 7, 8, 9. Cercopidae. 
Ocelli on vertex. Cluster of spinules at apex of tibia. 10, 11, 12. Jassid. Ocelli 
in line with front of eyes ; Double row of spines beneath posterior tibiae. 
grounds authorities are not agreed as to the number of families. We 
would divide the sub-order into two, keeping the old division Phytophthires 
for the last four families which are so sharply distinct in habits. 
' Cicadidce. 
Fulgoridae. 
Membracidce. 
Homoptera. 4 
j Cercopidae. 
I 
! Jassidce. 
Three ocelli on vertex. 
Ocelli two, placed beneath or very near 
the eyes, not on the vertex. Antennae 
beneath the eyes. 
Ocelli two, between the eyes. Antennae 
in front of eyes. Prothorax prolonged 
backwards. 
Ocelli two, on vertex. Hind tibiae with 
stout teeth, and with short spines at 
the tip. 
Ocelli two, on front margin or frons. 
Hind tibiae with a double row of spines. 
