AMERICAN NKUROPTICKA. 259 



EPHEMERIDJi:. 



Potamaiitliiis iii<>dius n. sp. — Pale yellowisli, a broad niediau retldisli 

 stripe on prothorax and vertex of head, and less distinctly on niesothorax; the 

 part on head is broader than elsewhere, and on the face it is broadened to reach 

 the eyes, or nearly so; tips of femur and tibia 1 are sli<;litly infuscated ; setre 

 narrowly annulate with brown at the tips of the joints, the median seta rather 

 smaller than the others; eyes of female scarcely if any more than two diameters 

 apart, hind margin of pronotum emarginate on middle. Expanse 22-24 mm. 



Douglas Co., Kansas, at electric light, July. 



Resembles P. myops, but is smaller, and the eyes much closer 

 together. 



CHRYSOPID^. 



Chrysopa placita n. sp. — Head greenish, a narrow black crescent under 

 each antennie, a black mark below each on clypeus, and one under each eye, 

 vertex with a rather broad brown streak each side, close to each eye, faint traces 

 of a pair of submedian rufous streaks; antennjE yellowish, basal joint greenish, 

 second not marked with black ; pronotum greenish, yellowish in middle, a small 

 black mark on each anterior side, and an indistinct rufous patch each side on 

 disc; thorax green, abdomen greenish, discolored with brown; legs pale green- 

 ish. Wings hyaline, with green venation, marked with black, the cross-veinlets 

 mostly black, the anal veins and its branches black, the upper side of the second 

 cubital cell and the divisory veinlet of third (mostly at least) black; also the 

 base of the radial sector; hind wings with venation mostly green ; the stigmal 

 region brownish in all wings. Forewings rather long and narrow, not very 

 acute at tips, the third cubital cell is long, and the divisory veinlet ends much 

 beyond the cross-vein; five veinlets in the inner gradate series, six or seven in 

 outer. Expanse 25 mm. 



Specimens from Clear Creek, and Chimney Gulch, Golden, Colo. 

 (Julv), (Oslar). The black marks on face and pale second antennal 

 joint are distinctive. 



.tieleoma verticalis n. sp.— Pale green; a long blackish stripe under 

 each eye toward mouth, mandibles blackish ; palpi lined with black ; basal joint 

 of antenna; below near tip is reddish, and the second joint has a blackish mark 

 beneath, vertex with a pair of short parallel reddish stripes; the horn is shorter 

 and wider than in 3/. innovata. the basal joint of antennte much swollen beneath 

 at tip, the third elongate, and very distinctly swollen on inner side. Thorax 

 green, with a pale yellow median stripe; abdomen green. Wings greenish 

 hyaline; venation green, many cross-veins black, all of the branches of the anal 

 and several basal costal veinlets wholly black, many others in part black, but 

 the gradate series green. Expanse 35-38 mm. 



Specimens from Chimney Gulch, Golden, August 3rd (Oslar); 

 Green Mt. Falls, July (Tucker) ; Cheyenne Canon, Colorado 

 Springs, July (Tucker), and Arboles, all Colorado; also White 



TKAN6. AM. ENT. .SOC. X.XXIV. SEPTEMBER. 190b. 



