HEMIPTERA HETEROPTERA. 
part of the head almost twice longer than 
the ante-ocular part, slightly sinuated as 
seen sideways beneath and in the middle; 
seat of the ocelli about equal to the ante- 
ocular part in height. - 
tt Membrane extending a little beyond the tip of 
the abdomen. - - . 
b. Prothorax with acute small fabereles: 
* Head with a spine behind the eyes ; ante-ocular 
part shorter than the post-ocular part. 
Cheeks not elongated. First joint of the 
rostrum longer than the second. First joint 
of the antenne longer than the head and 
prothorax together. Femora with two 
apical spines; fore femora somewhat 
thickened. 
+ Post-ocular part of the head very slightly 
tapering hindward as seen from above and 
sideways; ocelliferous part slightly raised, - 
+ Post-ocular part of the head as seen from above 
perceptibly tapering hindward, not tapering 
in a side view, suddenly straightened at the 
base beneath; ocelliferous part not or 
scarcely raised. Body very long. Scutellum 
acutely triangular. 
t Prothorax with four hinder spines. Some or all 
the abdominal segments with a spine on 
each apical angle. - - - - 
tt Prothorax unarmed hindward. - - 
* Femora unarmed at the tips. 
+ First and second joints of the rostrum equal in 
length, or the first longer than the second. 
t Post-scutellum not acutely prominent bebind 
the scutellum. 
§ Head oval, or oblong, or elongated, not gibbous 
beneath. 
X Ocelliferous part of the head not raised. Legs 
short; hind femora not reaching the tip of 
the abdomen. 
o Head almost cylindrical, very slightly tapering 
hindward; post-ocular part a liule longer 
than the ante-ocular. Antenne far from 
the eyes; first joint longer by half than the 
head. Eyes of moderate size. Body long. 
Abdomen slightly widened. Fore femora 
somewhat thickened. Fore wings sometimes 
shortened. 
oo Head gradually and perceptibly tapering hind- 
ward; post-ocular part hardly twice longer 
than the ante-ocular. First joint of the 
antenne as long as the prothorax. First 
joint of the rostrum as long as the third and 
61 
CaLLiLESTEs. 
CosMOLESTES. 
RIcouua. 
DoLpINa. 
HyGRomyYsrtTEs. 
Fircuta 
