HEMIPTERA HETEROPTERA. 
47 
§§ Fore half of the prothorax with five or six longi- 
tudinal furrows. - 
** No ocelli. - - - 
b. Fore lobe of the prothorax with no longitudinal 
furrow. - 
B. Rostrum extending beyond the fore coxae. Mem- 
brane of the fore wings with longitudinal 
veins. - 
Fam. 3. REDUVIOE. 
Reduvidae, Serv. Hist. Hem. 333. 
A. Hind angles of the prothorax spiny. 
a. Scutellum with three spines. ... 
b. Scutellum with one spine. 
* Disk of the prothorax spiny. 
f Hind part of the prothorax spiny, 
ff Hind part of the prothorax unarmed. 
** Disk of the prothorax unarmed. - 
B. Hind angles of the prothorax rounded, unarmed. 
a. First joint of the antennae not less than half the 
length of the head. - 
b. First joint of the antennae very short. 
* Head short. 
f Head not bifid. - 
tf Head bifid. Fore femora strongly dentate beneath. 
** Head long, mitre-shaped in front of the eyes. 
Fam. 4. ECTRICHODIDiE. 
Ectricbodidae, Serv. Hist. Hem. 342. 
A. Second joint of the antennae simple. 
a. Rostrum short, stout; second joint shorter than 
the first, tumid above. 
* Antennae six-jointed. - - - - 1 
** Antennae four-jointed. - 
b. Rostrum long, slender; first joint much longer 
than the second. .... 
B. Second joint of the antennae composed of many 
secondary joints. - - - - ‘ 
Fam. 5. MACROPIDiE. 
Macropidae, Serv. Hist. Hem. 346. 
A. Scutellum with one spine. 
B. Scutellum unarmed. - 
4. Rasahus. 
5. Pachynomus. 
6. Prostemma. 
7. Nabis. 
1. Platymeris. 
2. Tetroxta. 
3. Spiniger. 
4. Acanthaspis. 
5. Reduvius. 
6. Opinus. 
7. Durganda. 
^8. Tiarodes. 
. Phvsorhynchus. 
2. Ectrichodia. 
3. Pothea. 
. Hamaiatocerus. 
]. Macrops. 
2. Cethera. 
