HEMIPTERA HETKROPTERA. 



49 



§ Sides of the abdomen notched. 9. Montina. 

 §§ Sides of ihe abdomen not notched. 



X Disk of the prothorax with spiny tubercles. - 10. Pleogaster. 



XX Disk of the prothorax without tubercles. - 11. Harpactor, 



ft Fore femora with a spine at the base. - - 12. Acanthischia. 



The genus Oreada may be placed here at present; it is supposed to 

 be wingless. 



Fam. 9. ZELIDiE. 

 Zelidae, Serv. Hist. Hem. 367. 



A. Head without long and acute spines. 



a. Seutellum unarmed. 



* Disk of the prothorax without tubercles. 



f Hind angles of the prothorax unarmed. - - 1. Evagoras. 



ft Hind angles o! the prothorax with one spine. 

 { First and second joints of the rostrum equally long. 2. Isocondylus. 

 H First joint of the rostrum much shorter than the 



second. 

 § A tooth behind the sharp spine on each hind 



angle of the prothorax. ... 3. Diploda. 



§§ No tooth behind the above spine. - - 4. Darbanus. 



** Disk of the prothorax with pointed tubercles. - 5. Passalkutes. 



b. Seutellum with one spine. - 6. Saiga. 



B. Head with long and acute spines. 



a. Head with two spines. 



* Fore disk of the prothorax unarmed. 



f Hind angles of the prothorax not prominent. 



Fore wings entirely membranous. - - 7. Myocoris. 



ff Hind angles of the prothorax prominent and 

 spine-shaped. 



* Subapical joint of the antenna? not dilated in the 



male. Fore border of the prothorax with no 



spines nor tubercles. - 8. Zelus. 



J| Subapical joint of the antennae dilated in the 



male. Fore border of the prothorax with a 



prominent or spine-shaped tubercle ou each 



side. ----- 9. Atrachelus. 



** Fore disk of the prothorax with spines. - - 10. Heza. 



b. Head with many spines.- - - - 11. Sinea. 



Fam. 10. HOLOTKICHIDJ). 

 Holotrichida?, Serv. Hist. Hem. 376. 



Fore tibiae not dilated. 



Fore tibiaa dilated and membranous. 



1. Hoi.otrichia. 



2. Petalochira. 



