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. ..... 



4. Rasahus. 

 5. Pachynomus. 



6. Pbostemma. 



7. Nabis. 



Fam. 3. REDUVID^E. 

 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, 

 ft 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. - - - - 



First joint of the antenna? very short. 

 Head short. 



Head not bifid. . - - - - 



Head bifid. Fore femora strongly dentate beneath. 

 Head long, mitre-shaped in front of the eyes. 



b. 



t 

 ** 



1. Platymeris. 



2. Tetroxia. 



3. Spinigeb. 



4. acanthaspis. 



5. Reduvius. 



6. Opinus. 



7. DrjRGANDA. 

 8. TlAKODES. 



Fam. 4. ECTRICHODID.E. 

 Ectrichodidae, Serv. Hist. Hem. 342. 



A. Second joint of the antennae simple. 



a. Rostrum short, stout; second joint shorter than 



the 6rst, tumid above. 

 * Antennae six-jointed. 

 ** 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. - 



1. Physobhynchcs. 

 2. ecxeichodia. 



3. POTHEA. 



4. Hammatocebus. 



Fam. 5. MACROPID^E. 

 Macropidae, Serv. Hist. Hem. 346. 



A. Scutellum with one spine. 



B. Scutellum unarmed. - 



1. Macbops. 



2. Cethera. 



