412 PROCEEDINGS OF THE ACADEMY OF [April, 



DD. — Supra-anal plate of male with apical portion arcuate, 



not trigonal. 



E. — Coloration uniform pale ochraceous. Size medium. 



F. — Costal field of tegmina moderate in width. Size 



medium. Pronotum rarely as wide as greatest 



width of tegmen borealis Brunner. 



FF. — Costal field of tegmina narrow. Size small. 

 Pronotum wider than greatest width of 



tegmen insolita n. sp. 



EE. — Color of pronotum usually more or less blackish 

 brown, often bimaculate with same, very rarely 

 uniform in color with tegmina. (Pronotum 

 strongly sulcate and less transverse ovate than in 



alternative category.) 



bolliana Saussure and Zehntner. 



Females. 



A. — Tegmina shorter than body. 



B. — Dorsal color uniform deep brownish or brownish black or 

 pronotum alone entirely of that color with tegmina ferru- 

 ginous. 

 C. — Tegmina subquadrate, attingent mesad. 



D— Size larger (12.5-17.5 mm. in length). Tegmina 

 uniform in color with or nearly uniform in color 



with remainder of dorsal surface 



lit ropeltiformis (Brunner). 

 DD. — Size smaller (12.5 mm. in length). Tegmina ferru- 

 ginous in color, distinctly contrasted with blackish 

 color of remainder of dorsum nigricollis Walker. 



CC. — Tegmina lobiform, acuminate, lateral, decidedly not 

 attingent mesad. 



D. — Size medium. Tegmina separated by less than width 

 of single tegmen, apex reaching to second abdominal 



segment johnsoni Rehn. 



DD. — Size small. Tegmina separated by more than width 



of single tegmen, apex hardly exceeding mesonotum, 



(Vide infra bolliana.) americana (Scudder). 



BB. — Dorsal color not uniform deep brownish or blackish-brown, 



pronotum having pale lateral margins if center is dark 



brown (except in boll tana). 



C. — Pronotum with decided central discal dark brown or 



blackish-brown area of variable size (or with at least 



more or less complete evidence of same) ; lateral margins 



translucent or hoary white. 



D. — Supra-anal plate rectangulate produced. (Pronotum 

 usually with pronounced and sharply denned discal 

 area.) 



