NORTH AMERICAN NEUROPTERA. 213 



PSIIiOTRETA n. geij. 

 Spurs 2-4-4 ; subaijicul pair on intermediate tibise before the 

 middle ; palpi of male long, densely clothed with long hair in 

 rather vertical rows, those on second joint mask the face; basal 

 joint of antennae as long as head ; fore wings long and narrow, 

 hind pair shorter and with a folded anal region, discal cell in both 

 pairs very long, and open or indistinctly closed, third apical of fore 

 wings short pedicellate, first apical very much longer than the 

 second, third apical in hind wings pedicellate. 



Psilofreta frontalis n. sp. — Head brown, with black hair; second 

 joint of palpi with long and dense, black and gray hair on upper and inner sides; 

 rest of palpi less pilose; antennae yellowish; thorax and abdomen brown; legs 

 yellowisli ; wings gray hyaline, with sliort gray and yellow hairs, basal joint of 

 antenufe about as long as head, with short hair; fore wings long, slender, 

 rounded at tip, discal cell very long, three times as long as its pedicel, scarcely 

 closed, first apical cell extending nearly one-half way upon discal cell, third 

 apical short pedicellate, veinlet at base of suhapicals angulate, in hind wings 

 there is a large folded anal region, the hind margin is long fringed, the discal 

 cell is slightly narrowed at tip, but scarcely closed, twice as long as its pedicel, 

 third apical cell short pedicellate. Expanse 23 mm. 



Sea Cliff, New York, June. 



LEPTOCERIDtE. 



The principal section of tliis family is that defined by having the 

 spurs not more than 2 2-2. The genera of this section known to 

 me may be separated as below : 



1. Hind wings with fork five absent, thyridial cell absent, hind wings moder- 



ately narrow Triienodes. 



Hind wings with fork five present 2. 



2. Fore wiug bent transversely near tip, first apical cell long, hind wings quite 



broad, black species IVIystaciiles. 



Fore wings not so bent 3. 



3. Venation different in the sexes, in fore wings in the female the superior 



branch of upper cubitus is twice forked, making fourth and fifth 

 apical cells both pedicellate, in male ouly fourth apical cell pedicellate. 



hind wings very broad, spurs 2-2-2 I^eptoceriis. 



Venation not different in the sexes, fourth and fifth apical cells never both 

 pedicellate, spurs 1-2-2 or 0-2-2 4. 



4. Hind wings very broad, veins on costal portion of hind wings (before fork five) 



obsolete, in fore wings first and fourth apical cells both pedicellate, 



white or pale species I^eptoeella. 



Hind wings not so broad, veins on costal portion distinct, not white species. .5. 



5. Superior branch of upper cubitus simple in fore wings, hind wings broader. 



<Ecetina. 



Superior branch of upjjcr cubitus forked, wings very long and narrow, with 



acute tips Setodes. 



TRANS. AM. ENT. SOC. XXV. JANUARY. 1H99. 



