1915] Parshley — Sysfematic Papers on New England Hemiptera 173 



9. Frena extending just to middle of scutellum; bucculse increasing in height 

 posteriorly, ending abruptly; lateral margin of pronotum not explanate; 



rostrum extending a little beyond intermediate coxae 9. Hsrmenarcys 



Frena extending beyond middle of scutellum; bucculse decreasing in height 

 posteriorly, elevated anteriorly into an angle; lateral margin of pronotum 

 explanate in front ; rostrum extending beyond intermediate coxa; 1 3 . Menecles. 



10. Frena extending beyond middle of scutellum 11 



Frena shorter 2. Trichopepla 



11. Tibia; distinctly and broadly sulcate throughout their length 12 



Tibiae not so sulcate 1"* 



12. Lateral margins of pronotum crenulate, lateral angles prominent, rounded or 



acuminate: head rather elongate 7. Euschistus 



Lateral margins of pronotum not crenulate, lateral angles not prominent; head 

 shorter 13 



13. Form elongate; color olivaceous green; second and third segments of rostrum 



nearly equal, fourth shorter 4. Rhytidolomia 



Form broad; color clear green; second segment of rostrum longer than third, 

 third nearly equal to fourth 3. Chlorochroa 



14. Thorax armed on each side with a long anteriorly projecting spine; first segment 



of rostrum shorter than bucculse; form elongated; margin of scutellum con- 



colorous 6. Solubea. 



Thorax unarmed; first segment of rostrum longer than buccalse; form broad; 

 scutellum outlined with white 5. Mormidea 



15. Juga not longer than tylus 14. Thyanta 



Juga longer than tylus, almost or quite contiguous in front (somewhat as in 



fig. 5) 16 



16. Prothorax with conspicuous white impunctate margins extending around 



lateral angles 1 • Peribalus 



Prothorax without such margins, impimctate anteriorly onl^' 19. Dendrocoris 



17. Fifth antenna! segment more than twice the length of second; apex of scuteljum 



and anterior region of prothorax lighter; species olivaceous green in color 



18. Banasa 

 Fifth antennal segment less than twice length of second; scutellum and pro- 

 thorax concolorous; species clear green in color 18 



18. Orifices short, rather broad, not extending more than half way to lateral margins 



of metapleura, ending abruptly 17. Nezara 



Orifices continued in a long narrowing ruga, extending almost to posterior 

 lateral angles of mesopleura 16. Acrostemum 



1. Genus Peribalus Mulsant et Rey. 

 Holcostethns Kirk, in part. 

 Color brown, tip of scutellum and margins of body more or less pale; length 75-9 

 mm limbolarius Stal. 



2. Genus Trichopepla Stal. 

 Color brown with faint paler markings; coimexivum spotted; body pilose; length 

 6.5-8 mm semivittata Say. 



