HE.MIPTERA HETEROPTERA. 



Fam. 2. ARADID.E. 



Aradidas, Serv. Hist. Hem. 307. 



A. Second joint of the antennas longer than all the 



others together. - 1. Aradus. 



B. Second joint of the antennae not longer than the 



third. 



a. Scntellum not very large. 



* Body not linear. ----- 2. Piestosoma. 



** Body linear. - - - - 3. Melanostesphus. 



b. Scutellura very large. - - - -4. Aradacanthia. 



The Bracbyrhynchidas and Aradidce are united in one family, and are 

 thus distributed in genera by Prof. Stal : — 



A. 

 B. 



h. 

 * 



++ 



§§ 

 X 

 o 



00 



Rostrum extending beyond the base of the head. 

 Rostrum not extending beyond the base of the 



head. 

 Scntellum large, extending far beyond the 



middle of tbe abdomen. - 

 Scntellum of moderate size. 

 Membrane veined. 

 First joint of the antennas longer than the 



second. 

 First joint of the antennas very long, with long 



and thick-set bristles. * - 



First joint of the antennas without long or thick- 

 set hairs. 

 Head with a spine on each side extending 



beyond the eyes. - 

 Head with no spine extending beyond the 



eyes. 

 Head extending much in front of the antenni- 



ferous tubercles. 

 Segments of the abdomen lobate. 

 Segments of the abdomen not lobate. 

 First joint of the antennas shorter than the head. 



Scutellura not tuberculate. 

 Sides of the prothorax bent, lobate in front of 



the band. 

 Head with a tooth behind the eye. Hind border 

 of the prothorax bent. - - - 



Head with no tooth behind the eye. Hind 



border of the prothorax straight. - 

 Sides of the prothorax slightly bent, not lobate 



in front of the bend. - 



First joint of the antennas as long as the head. 

 Scutellura with a tubercle. 



1. Aradus. 



2. Calisius. 



3. Alyattes. 



4. Arictus. 



5. Dvsomus. 



6. Cinyphus. 



7. Aktabanus. 



8. Hesus. 



9. Crimia. 



