BANKS! M.w \i .1 ROPTEROID [NSE< CS, 323 



Brown] top of head and sides by the eyes yellow, and a median extension 

 int<> the ocellar triangle, Lower part of Pace pule; antennae brown] palpi black] 

 pronotum brown on Bides, pale in middle, this pale stripe extending back over 

 rest of thorax] abdomen brown, the last few ventral segments with pale spots 

 on apical margins] setae Mack ; Legs black, femora more brown. Head broader 

 than prothorax, ocelli rather Large, the ocellar triangle Little broader than l<»n^, 

 the posterior ocelli about twice as close to the eyes as to each other, lateral 

 bosses about one half way from the posterior ocelli to antenna! ridges. Pro- 

 notuni one and one half times broader than Long, sides nearly parallel, Wings 

 brownish, rather darker on costal part, yellowish on extreme costal basej 

 veins dark brown] radial sector twice forked beyond anastomosis, two or 

 three cross-veins beyond end of subcosta, about seven or eighl median and 

 cubital cross-veins] anal cell very small. 



Expanse 22 mm. 



Differs from /. maadata in having ocelli much closer to eyes, from 

 /. brunneipennis in pale thoracic stripe. 



Alloperla fidelis, sp. nov. 



Type.— M. C. Z. 10,82:1 Calif.: Tahoe, Great Alpine (nek. 

 24 June (F. Grinnell). 



Pale greenish; no distinct marks on the head, but rather brownish in front , 

 antennae beyond basal portion blackish; pronotum with faint dark mark on 

 each lateral disc, and with the edges dark, meso- and metanotum with black 

 U-shaped mark around the scutelli, abdomen with a median black stripe above; 

 tips of tarsi dark. Wings hyaline, venation greenish. Ocelli form a triangle 

 broader behind than long, the posterior ocelli hardly closer to the eyes than to 

 each other; lateral bosses rather nearer to antennal ridges than to the posterior 

 ocelli. Pronotum more than twice as broad as long, sides rounded, and rather 

 narrowed behind. Female ventral plate with a distinct median emargination. 

 Radial sector nearer to the anastomosis than to tip; six or seven median, and 

 four cubital cross-veins; anastomosis disjointed. 



Expanse 22 mm. 



By marks of pronotum and absence of marks on the head it is allied 

 to . 1. pacifica, which is smaller, and has the ventral plate entire. 



Nemouka javanica, sp. nov. 



Type. — M. ('. Z. 10,825. Java: Batavia (Rosenberg). 



Dull black, pronotum rather paler, Legs pale, unmarked, tips of joints scarcely 

 darker: ocelli form an equilateral triangle, hind ocelli two thirds as far from 



