1914.] NATURAL SCIENCES OF PHILADELPHIA. 61 L 



From Belgaum, India, 2,000 feet, April. Its small size and blacic 

 head and pronotum distinguish it. 

 Neoperla bolivari n. sp. PI. XXVIII, fig. l. 



Yellowish; margin of pronotum brown; abdomen brown on base; 

 a brown, spot each side on mesonotum; antennae pale brownish; 

 last joint of tarsus, tip of tibia, and mark at tip of femur above black 

 or dark brown. Wings faintly brownish, veins pale, except radial 

 cross-vein is black. Ocelli about one and a-half times their diameter 

 apart, only half as far from the bosses,, the latter about their length 

 from the eyes; pronotum about one and a fourth times broader 

 than long, hardly narrowed behind, anterior corners sharp, posterior 

 ones rounded, surface rugose, three ridges near middle. Third 

 joint of maxillary palpi much longer than the fourth; legs stout, 

 femur I twice as broad as the tibia, last tarsal joint more than twice 

 as long as others together. Female ventral plate very large, emar- 

 ginate in the middle behind. Wings long; about 15 costal cross- 

 veins, four cross-veins beyond end of subcosta; three branches ta 

 radial sector beyond anastomosis, 8 to 10 median cross-veins, 6 or 7 

 cubital cross-veins, in hind wings the anal fork has five branches.. 

 Expanse 54 mm. 



From Monte Soccoro, Colombia, 3,600 m. (Fassl). 

 Isoperla texana n. sp. PI. XXVIII, fig. 3. 



Yellowish; a faint dark V-mark connecting the ocelli; palpi 

 yellowish brown, antennae pale on basal fourth, dark beyond; pro- 

 notum brown on the sides; abdomen yellow above and below, setae 

 pale yellow, the tips dark; legs yellow, a black streak on outer side 

 of femora and on basal outer part of tibse, and the tips of tarsi dark; 

 wings brownish, veins dark brown, costal area yellowish. Posterior 

 ocelli a little nearer to eyes than to each other, bosses about half 

 way from ocelli to bases of antennae; pronotum one and a half times 

 as broad as long, hardly broader in front, sides straight, corners 

 right-angled, sides coarsely rugulose; fore wings with two or three 

 cross-veins beyond the end of the subcosta; radial sector forked 

 twice beyond the anastomosis, about six median and five cubital 

 cross-veins. Expanse 23 mm. 



From Kerrville, 19 June; Dallas, 20 May; Victoria, 26 May; 

 and Devils River, 3 May, all Texas. Type in U. S. Natl. Museum. 



PSOOID^. 

 Psocus stigmosalis n. sp. PI. XXVIII, fig. IS. 



In general similar to P. semistriatus, but the stigma is more slender 

 and marked with black, mostly behind. Nasus lineated with black,. 



