HAGEN.] ZOOLOGY PSEUDO-NEUROPTEEA AND NEUROPTEEA. 577 



pale-brown ; costa, and its transverse veins, pale ; submedian areolet less 

 enlarged on the tip ; the anterior vein less incurved ; vulvar lamina simi- 

 lar to I. elongatns, but larger, subbilobed, the notch reaching nearly to 

 the basal furrow, and the apical margin nearly circular. 



Length, with the wings, 22 millimeters ; alar expansion, 38 millimeters. 



Hcibitat. — Snake Eiver, Idaho (C. Thomas). I believe that some speci- 

 mens from the Saskatchewan Eiver, from the Slave and Winnepeg Lakes, 

 all in my collection, belong here. The males are a little smaller, but 

 long-winged. The comparison of dry and alcoholic specimens is so 

 difficult that it seems more prudent to consider the identity of the speci- ; 

 mens as still doubtful. 



PERLA. 



P. sohria, sp. nov. 



Female. — Head dull-brown near the prothorax ; the anterior part 

 pitchy-black ; three large yellow spots between the eyes, each side one 

 near the border, and a middle rhomboidal one ; three smaller spots on 

 the clypeus between the antennae, each side, a pale, whitish one near 

 the border, and a middle quadrangular, yellow one just before the ante- 

 rior ocellus, bordered on each side by a shining-black stripe; antennae 

 black, brownish l^eneath at the base. Prothorax as broad as the head, 

 quadrangular, broader than long; hind angles less sharp, jiale-yellow 

 on each side, with a large, illdehned rugulose band ; a line, impressed, 

 median line with a spot in the middle, and a fine, transversal line just 

 before the anterior and one before the posterior margin, all black. Me- 

 sothorax and metathorax shining-black above ; abdomen brown on the 

 under side, paler at tip; head and thorax brown beneath, with a large, 

 black spot on each side before the second and third pairs of feet ; setae 

 pale-yellowish. Feet dark-brown ; wings hyaline, scarcely fumose; veins 

 strong, blackish-brown, finer in the costal space ; vulvar lamina large, 

 bifid, the outer edge of the two lobes rounded ; before them a small 

 tubercle. 



Length, with the wings, 14 millimeters; alar expansion, 26 millime- 

 ters. 



Hahitat. — Colorado Mountains, Pacific slope, August (Mr.. Carpenter). 

 One female, in poor condition. 



P. ehria, sp. nov. 



Female. — The single specimen, in bad condition, is very similar to P. 

 sobria in colors and in shape. The genital parts are well preserved and 

 the vulvar lamina is entirely different, a long oval lobe without any 

 notching of the apex. So far as known, this important part never varies 

 in such a manner, and it would be impossible to unite both specimens 

 in one species, notwithstanding their great resemblance. 



Habitat. — The same locality as P. sobria. 



P. (?),sp. 



There is a third species from the same locality in worse condition still. 

 It is a little smaller, the head and the prothorax somewhat different. As 

 the abdomen is wanting, I i>refer merely to indicate the occurrence of a 

 third undescribed species. 



CHLOROPERLA. 



A small Chloropcrla, of the size of C. cydippe, from the foothills of 

 Colorado, belongs to a new species, but is too much damaged to be 

 described. 



37 G s 



