1910.] NATURAL SCIENCES OF PHILADELPHIA. 411 



Tegmina with pale proximal portions of costal field 

 strongly contrasted in none but darkest individuals.. 



pensylvanica (De Geer). 



DD. — Median area of pronotum uniform, sharply defined and 



broadly and solidly confluent with caudal margin; 



pale lateral portions broad. Tegmina with pale 



proximal portion of costal field decidedly contrasted 



with remainder of tegmina 



pensylvanica incequalis (Saussure and Zehntner). 

 CC. — Supra-anal plate with median produced portion narrower. 



(General color paler.) divisa Saussure and Zehntner. 



BB. — Pronotum without a very decided central dark brown discal 

 area on the pronotum 2 or when this area is dark it is occupied 

 by paired dark brown subarcuate bars. Tegmina pale red 

 brown or brownish with the costal region less translucent 

 (except in couloniana). 

 C. — Size large (cJ 1 tegmina 19-22 mm.). Supra-anal plate 



rotundato-trigonal couloniana Saussure. 



CC. — Size medium or small. 



D. — Supra-anal plate rotundato-trigonal or more or less 

 truncate or emarginate distad. 

 E. — Distal margin of supra-anal plate not obtuse emargi- 

 nate. 

 F.~ -Supra-anal plate rotundato-trigonal. 



G. — Pronotum transverse elliptical, rarely with 

 slight cephalic production, greatest width 

 of same distinctly less than greatest width 

 of single tegmen, whole pronotum small 

 in proportion to general size. Tegmina 

 distinctly wider one-third length from 

 apex than at one-third cf distance from 



base uhleriana Saussure. 



GG. — Pronotum always slightly produced and 

 narrowed cephalad, large, greatest width 

 of same, equal to the greatest width of 

 single tegmen, whole pronotum large in 

 proportion to general size. Tegmina hard- 

 ly wider one-third length from apex than 



at one-third of distance from base 



uhleriana fulvescens Saussure and Zehntner. 



FF. — Supra-anal plate produced and broadly truncate 



mesad with angles rounded, distal portion of 



plate distinctly depressed and forming an 



angle with proximal portion notha n. sp. 



EE. — Distal margin of supra-anal plate obtuse-angulate 

 emarginate occidentalis Saussure. 



2 Occasionally in /. couloniana the middle of the pronotum is quite dark, but 

 the color of the tegmina and remainder of the body shows the proper position of 

 these specimens. 



