4 John Todd Zinuner 



10. Tibiae sulcate above ; lateral pronotal margins entire ; humeral 



angles rounded, not prominent. Liodermion 



lo. Tibiae terete without a sulcus or else the cephalic portion of the 

 lateral pronotal margins crenulate; humeral angles prominent, 



either rounded or pointed 1 1 



II. Joint I of the rostrum extending a little posterior to the bucculae; 



tibiae terete without sulcus above Mormidea 



II. Joint I of the rostrum shorter than the bucculae or else the tibae sul- 

 cate above 12 



12. Lateral pronotal margins entire ; tibiae terete Solubea 



12. Lateral pronotal margins crenulate; tibiae sulcate above. 



Euschistus 



13. Scutellum broadly rounded at the apex, as long as or nearly as long 



as the corium; apical margin of the corium rounded, its apical 



angle obtuse Coenus 



13. Scutellum narrowed at the apex, not extending as far posteriorly 

 as the corium; apical margin of the corium nearly straight, its 



apical angle acute Hynienarcys 



14. Pronotum with three longitudinal ridges Aelia 



14. Pronotum without three longitudinal ridges 15 



15. Head triangular and convex dorsally; juga longer than the tylus. 



Neottiglossa 

 15. Head not triangular nor convex dorsally; juga not longer than the 



tylus Cosmopepla 



16. Lateral pronotal margins conspicuously explanate; no humeral 



proj ections Menecles 



16. Lateral pronotal margins not explanate but with a prominent proc- 

 ess bent slightly caudad at the humeral angles Prionosoma 



17. Odoriferous orifices elevated and with the sulcus continued laterally in 



a gradually disappearing wrinkle Thyanta 



17. Odoriferous orifices without a sulcus, scarcely elevated Murgantia 



18. Segment 5 of the antennae less than twice as long as segment 2. 



Nesara 

 18. Segment 5 of the antennae more than twice as long as segment 2. 



Banasa 

 Tribe HALYINI 



Genus Brochymena Amyot & Serville 



KEY TO THE SPECIES 



I. Humeral angles produced in a truncate lobe arborea 



I. Humeral angles rounded, serrate quadripustulata 



Brochymena arborea (Say). 



1825. Pentatoma arborea Say, Joiirn. Acad. Phil., IV, p. 311. 



1839. Halys erosa Herrich-Shaffer, Wans. Ins., V, p. 70. 



222 



