HEMIPTERA HETEROPTERA 
spinulose beneath. Hind femora extending 
to the tip of the abdomen, 
ft Ocellilerous part of the head not elevated, 
B. Fore wings complete; discal areolet very large, 
almost triangular. 
a. First joint of the rostrum hardly shorter than the 
third and fourth together. Fore lobe of the 
prothorax with no spine on each side behind. 
b. First joint of the rostrum distinctly shorter than 
the third and fourth together. Fore lobe of 
the prothorax with a lobe on each side 
behind. - 
Subfam. 6. ECTRICHODIDA. 
A. Body not or slightly depressed. Second joint of 
the antennae simple. Middle and hind legs 
equally apart, or the former more remote than 
the latter. 
a. First joint of the rostrum shorter than or as long 
as half the length of the head, uot extending 
behind the eyes. 
* Scutellum broad or rather broad at the tip. 
f Scutellum with three or four points at the lip. 
+ Antennae 6-jointed. Scutellum with four apical 
points ; the middle pair very short. 
Antennae 8-jointed. Scutellum with three points 
at the tip, the middle one very short. 
ft Scutellum with two points at the tip. 
I Head oval or ovate, more or less deflexed. Second 
joint of the rostrum moderately long. 
§ First and second joints of the rostrum almost 
equally long, or the former a little longer or 
shorter than the latter. Antennae 6-jointed. 
X Head elevated about the antennae. Eyes rather 
prominent. First joint of the antennae not or 
little shorter than the head. 
X X Head not elevated about the ocelli. Eyes very 
slightly prominent. First joint of the antennae 
shorter than half the length of the head. 
§§ Antennae with seven or eight joints. 
X Antennae 7-jointed. - 
o First joint of the rostrum longer than the second. 
oo First and second joints of the rostrum almost 
equally long, or the second shorter than the 
first. - 
Head elongated, porrect. Second joint of the 
rostrum very long. - 
§ Scutellum narrow at the tip and furnished with 
two points at a little distance or almost con- 
tiguous. 
X Antennae 4-jointed. - 
X X Antennae 7-jointed or 8-jointed. 
79 
Spilalonius. 
Argolis. 
Thodelmus. 
Canthesancus. 
Centraspis. 
Larymna. 
Microstemma. 
Mendis. 
ScADRA. 
Cleptria. 
ClMBUS. 
ZlRTA. 
