HEMIPTERA HETEROPTERA. 



47 



§§ Fore half of the prothorax with five or six longi- 

 tudinal furrows. .... 4. Rasahus. 



** No ocelli. ----- 5. Pachynomus. 



h. Fore lobe of the prothorax with no longitudinal 



furrow. ----- 6. Prostemma. 



B. Rostrum extending beyond the fore coxa?. Mem- 

 brane of the fore wings with longitudinal 

 veins. -.--_.- 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 antenna? not less than half the 



length of the head. - - - - 



b. First joint of the antenna? very short. 



* Head short. 



f Head not bifid. ..---- 

 ff Head bifid. Fore femora strongly dentate beneath. 

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



1. Platymeris. 



2. Tetroxta. 



3. Spiniger. 



4. acanthaspis. 



5. Reduvius. 



6. Opinus. 



7. DuRGANDA. 

 8. TlARODES. 



Fam. 4. ECTRICHODIDjE. 

 Ectrichodida?, Serv. Hist. Hem. 342. 



A. Second joint of the antennae simple. 



a. Rostrum short, stout; second joint shorter than 



the first, tumid above. 

 * Antenna? six-jointed. - - - - 1. 



** Antenna? four-jointed. - - _ - 



b. Rostrum long, slender; first joint much longer 



than the second. -- 



B. Second joint of the antenna? composed of many 



secondary joints. 



Phvsorhynchus. 

 2. ectrichodia. 



3. POTHEA. 



4. Hammatocerus. 



Fam. 5. MACROPID^. 

 Macropidae, Serv. Hist. Hem. 346. 



A. Scutellum with one spine. 



B. Scutellum unarmed. - 



1. Macrops. 



2. Cethera. 



