HEMIPTERA HETEROPTERA. 47 
§§ Fore half of the prothorax with five or six te longi: 
tudinal furrows. - = - 4. Rasauvs. 
** No ocelli. - - - - 5. PacHyNomvs, 
b. Fore lobe of the prothorax with no longitudinal 
furrow. - - - - - 6. ProsteMMA. 
B. Rostrum extending beyond the fore coxe. Mem- 
brane of the fore wings with longitudinal 
veins, - - = - - 7. Nasis. 
Fam. 3. REDUVIDZ. 
Reduvide, Serv. Hist. Hem. 333. 
A. Hind angles of the prothorax spiny. 
a. Scutellum with three spines. - - - 1, PLatyMeEris. 
b. Scutellum with one spine. 
* Disk of the prothorax spiny. 
+ Hind part of the prothorax spiny. - - 2. TETROXIA. 
+t Hind part of the prothorax unarmed. - - 3. SPINIGER,. 
** Disk of the prothorax unarmed. - = 4, ACANTHAaSPIS. 
B. Hind angles of the prothorax rounded, eee 
a. First joint of the antenne not less than half the 
length of the head, - - : - 5. Repvvius. 
b. First joint of the antenne very short. 
* Head short. 
+ Head not bifid. - - 6. OpINus. 
+t Head bifid. Fore femora strongly dentate: beventt 7. DurGanpa. 
** Head long, mitre-shaped in front of the eyes. - 8. TraropeEs. 
Fam. 4. ECTRICHODIDE. 
Ectrichodide, Serv. Hist, Hem. 342. 
A. Second joint of the antennz simple. 
a. Rostrum short, stout; second joint shorter than 
the first, tumid above. 
* Antenne six-jointed. = - - - - 1. Paysoruyncuus. 
** Antenne four-jointed. - - - - 2. EorricHopta. 
b. Rostrum long, slender; first joint much longer 
than the second. - - - - 3. Pornea. 
B. Second joint of the antenne composed of many 
secondary joints. - - - - 4, HamMarocerus, 
Fam. 5. MACROPID. 
Macropida, Serv. Hist. Hem. 346, 
A. Scutellum with one spine. - - - 1. Macrops. 
B. Scutellum unarmed. - - = - 2, CerHERA, 
