,S6 
PSYCHE 
[ June- August 
Perla kansensis n. sp. 
Pale yellowish, ocelli on black spots, a faint dark cloud on each side of the 
disk of pronotum, and the tip of the abdomen is brown; wings pale yellowish 
hyaline, venation wholly yellowish. Head broad, ocelli forming an equilateral 
triangle, and the posterior ocelli as close to eyes as to each other; pronotum 
narrowed behind, anterior angles acute, posterior ones rounded; legs short, the 
tibiae plainly broader than usual, slightly swollen in middle. Discal cell arising 
beyond the second cross-vein of median area; the radial sector usually twice 
forked beyond the cross-vein. In the male the tip of the abdomen has a large 
conical tubercle above base of each seta, which viewed from below and behind is 
seen to be bilobed at tip. E.xpanse ( ^ ) 35 nmi. Douglas Co., Kansas, .\ugust. 
Perlinella cinctipes n. sp. 
Head yellow, a broad, black intra-ocellar spot extending forward, and also 
laterally. Posterior ocelli as close to eyes as to each other, and fully as far from 
the anterior ocellus, .\ntenna; yellowish on basal part, beyond brown. Pro- 
thorax black, with a narrow median yellowish stripe; rest of thorax brown; legs 
yellowish, tarsi brown, femur I with a dorsal black streak, femora II and HI 
with a broad black band. Abdomen brown above, pale below, but darker before 
the tip; set® pale, joints tipped with brown, slender, and with a few long hairs 
at tip. Wings faintly brownish, venation pale, costal area yellowish, radial 
sector with one branch, arising farther out than in P. phiciiia Hag. Length 
10 mm., expanse 18 mm. Two specimens from Onaga, Kansas. Readily dis- 
tinguished from P. placida Hag. and P. decipiens Walsh, by the broad black bands 
on femora II and III. 
Atoperla n. gen. 
Caudal setae present, slender, with elongate joints, each tipped by a whorl 
of long hairs; with two ocelli, nearly as far apart as from the eyes; a folded anal 
space to hind wings; radial sector with but one branch beyond cross-vein, about 
three cross-veins beyond end of the subcosta. Type Pcrhi producta Walsh. By 
its two ocelli it is allied to Neoperla, but differs from that genus by the nature of 
the set® which are similar to those of Perlinella placida Hag., in fact I think the 
structure of the set® is of more value than the number of ocelli. Peltoperla, the 
other genus with two ocelli, has very short set® ; its one species, described from 
New York, also occurs in West Virginia. 
Taenionema n. gen. 
Set® practically absent, very short. Tarsi with three sub-equal joints, the 
second as long as first, and the third a little longer than others. In both pairs 
