438 PROCEEDINGS OF THE ACADEMY OF [April, 



width at third of length from apex, breadth there appreciably greater 

 than at one-third of length from base; costal margin arcuate, less so 

 mesad and distad than proximad, apex rotundato-acuminate, anal 

 sulcus reaching sutural margin one-third of length of latter from base. 

 Wings with from four to six complete and two to four incomplete 

 rami of ulnar vein. Supra-anal plate moderately produced, trigonal, 

 apex rather broadly rounded; cerci subdepressed, tapering distad, 

 subequal in width pr< ximad. 



General color ochraceous, varying toward tawny ochraceous in 

 some individuals, lateral portions of pronotum and costal field of teg- 

 mina frequently translucent, abdomen becoming prout's brown distad, 

 eyes blackish, face marked more or less solidly with prout's brown. 

 9. Size rather small; form elliptical-ovate, subdepressed; surface 

 subglabrous. Head almost completely hidden under pronotum ; 

 interspace between eyes slightly greater than that between antenna! 

 bases; antennas very slightly exceeding apex of abdomen. Pronotum 

 strongly arcuate laterad and cephalad, very narrowly subtruncate 

 dorsad of head, caudal margin truncato-arcuate, lateral angles rounded 

 rectangulate ; disk in section arcuate, oblique sulci absent. Tegmina 

 subquadrate, costal margin gently arcuate, discal margin slightly 

 oblique subtruncate, occasionally subsinuate, apex costal and well 

 rounded, disto-sutural angle rounded, anal sulcus reaching to disto- 

 sutural angle; costal field moderately broad. Wings as long as 

 tegmina. Supra-anal plate moderately produced, trigonal, lateral 

 margins more or less distinctly arcuato-emarginate, apex rounded, a 

 more or less decided medio-longitudinal carina present; cerci sub- 

 depressed, subfusiform. apex acute. 



General color ochraceous, abdomen with distal portions of segments 

 and often almost entire abdomen seal brown; eyes blackish. Tawny 

 occasionally suffuses disk of pronotum and entire tegmina aside from 

 costal field. 



Measurements. — d\ Length of body 13.5-17.5 mm.; length of 

 pronotum 3-3.2; greatest width of pronotum 4.2-4.8; length of teg- 

 men 15.5-19.5; greatest width of tegmen 5.5-6. 



< > ^\ T ^ J ?• Length of body 12-15; length of pro- 



notum 4-4.5; greatest width of pronotum 5-6.2; 

 ^plTVhleHana ^ngth of tegmen 3.8-4.5; greatest width of 



Saussure. Supra- tegmen 3.2-4.5. 



analglateof<^(^x5) Distribution.— Positive data for this species 



Delaware County, show the range to be more limited than is 



hurst f N 18 L' Lake " usuall y supposed to be the case. It is now 



known to range from Massachusetts, New York, 



