428 PROCEEDINGS OF THE ACADEMY OF [April, 



1907. Ischnoptera incequalis Hart, Bull. 111. State Labor. Nat. Hist., VII, 

 art. VII, p. 230. [Devil's Neck, Devil's Hole and Havana, Illinois; 

 Iowa.] 



1909. Ischnoptera incequalis Tucker, Ent. News, NN, p. 296. [Piano, 

 Collin County, Tex.] 



Description. — d\ Size, shape and surface similar to /. pensylvanica 

 from which differential characters alone will be given. Tegmina 

 four to five times length of pronotum. the width as in pensylvanica. 

 Wings with from two to six complete and none to two incomplete 

 rami. Supra-anal plate similar to that of pensylvanica but with distal 

 margin more distinctly obtuse-angulate. 



General dorsal color varying from prout's brown to seal brown, 

 pale borders of pronotum and costal field buff, this color less extensive 

 on tegmina than in pensylvanica and much more contrasted. Pronotal 

 maculation solid, broadly confluent with caudal margin and narrowly 

 so with cephalic margin, lateral outlines of maculation sharply defined, 

 more or less sinuate mesad. Tegmina in paler specimens with humeral 

 trunk somewhat darker than general color. Abdomen varying from 

 burnt umber to seal brown, darker laterad and distad. Limbs varying 

 from pale ochraceous to burnt umber. 



9. Size, shape and surface similar to /. pensylvanica but tegmina 

 normally reaching only to middle of abdomen. 13 Pronotum with 

 even less trace of oblique sulci than in /. pensylvanica. Tegmina 

 from one and one-half times to twice 13 pronotal length, sub- 

 acuminate ovate or very rarely subquadrate, 14 costal margin rather 

 strongly arcuate, apex more or less narrowly rounded; anal sulcus 

 reaching to or slightly distad of middle of sutural margin; costal 

 field rather broad, reaching almost to middle of tegmen. Wings 

 very small, hardly more than half of pronotal length. Supra-anal 

 plate trigonal; cerci as in /. pensylvanica. 



General color seal brown, rarely burnt umber, pronotal maculation 

 very similar in shape to that of male, but margins usually less sinuate, 

 lateral borders pale ochraceous including also costal field of tegmina, 

 the latter strongly contrasted with remainder of dorsum; abdomen 

 uniform seal brown dorsad ; 15 venter vandyke brown ; limbs pale ochra- 



13 One female from Steuben County and two females from Crawford County. 

 Indiana, have tegmina reaching to within a very short distance of the apex of 

 the abdomen, but this is due to intergradation with typical /. pensylvanica. 



14 This is true of one female from Vigo County, Indiana. In this the tegmina 

 are obliquely sinuato-truncate distad. 



16 The single Steuben County, Indiana, female and three others of the same 

 sex from Crawford County, Indiana show an approach to true /. pensylvanica 

 in having the margins of the abdomen dull clay color. 



