Scudder.l 212 



luteous (in life, yellowish-green in front, greenish-yellow behind) 

 edged on all sides with black, and crowned Avith a transverse comb 

 of long black hairs which extend along a black band bordering the 

 eyes on either side above ; except this the parts behind the eyes are 

 brownish-yellow (in life dirty pale green) ; the eyes in life are grass- 

 green ; thorax black, a little ferruginous along the middle of the dor- 

 sum ; dorsum with a large cuneiform stripe on either side, approxi- 

 mate above, pointed and divaricate below, rather pale green in life ; a 

 mesothoracic and metathoracic very broad oblique stripe lemon-yellow 

 in life, and midway between them a narrow, inconspicuous yellowish- 

 brown stripe (color in life not noted) ; wings hyaline, very slightly in- 

 fuscated ; pterostigma fusco-ferruginous ; membranule white ; legs 

 black, anterior femora with a ferruginous tinge on anterior surface ; 

 claws with a minute inferior median tooth ; abdomen black, a spot on 

 segment 2 below auricle and another upon genital lobe, an indented 

 stripe on sides of segments 1-3, a sub-triangular spot on the sides of 

 segments 4-8 in the middle, and a minute spot on side of segment 9 at 

 base yellowish tinged more or less with brown (in life bright lemon-yel- 

 low); abdomen a little inflated at the base, segment 3 a little constricted, 

 beyond nearly equal, but segments 7-8 expanding a little ; appendages 

 black, superior pair short, about three-fourths the length of segment 

 10, straight, parallel, subtrigonal at base, depressed and laminate at 

 apex, the apex slightly expanded interiorly, obhquely docked interi- 

 orly, pointed just before the middle, inferiorly, a pretty large recurved 

 tooth ; inferior appendage, broad, very short, a little rounded, the sides 

 strongly auriculated, the auricles extending backward, outward and 

 upward, obscurely bidentate. 18-21 antecubitals ; 14-16 postcubi- 

 tals ; two rows of discoidal areolets. 



Length 2.08-2.30; alar expanse 3.02-3.14; pterostigma .13-.14 in. 

 White Mts., (the Glen). 4 $. June 17, July 26 and middle of 

 August. 



JSschna constricta Say. 



I obtained both sexes of this species in abundance, differing in the 

 markings, especially of the abdomen, from Hagen's description. The 

 dorsal stripes of the thorax are interrupted or absent in the 9 as de- 

 scv'ihed by lla.gen in yE. multicolor, the pleural stripes are bordered 

 with black ; on the abdomen I find the following markings : segment 1 

 with a transverse apical blue band ; segment 2 with a narrow dorsal 

 median stripe, the sides with a transverse middle narrow stripe, ex- 

 panding below (upon the auricle in the 6 ) just failing to reach the 

 dorsal stripe, yellow or yellowish-green, the apex with a broad trans- 

 verse green or greenish-blue band; segments 3-10 with a quadrangu- 



