238 EXOTIC NEUROPTERA. 



wings the upper apex is blackish, and there is a small faint cloud be- 

 fore the fork of the radial sector. Body black, venter pale yellowish ; 

 face pale, but a large black spot on middle of front margin ; antennae 

 black, except yellow basal joints; femora yellow, tibia II and III 

 brown, tarsi II and III black; tibia I jet black, tarsi I pale; spurs 

 pale. Expanse 23 mm. 



Type. — cf. From Rio Negro, Colombia, 500 m. (Fassl). 



Centroinacronenia nigrifroiis n. sp. — Body black, as dark 

 beneath as above, head coal black and basal joint and two or three 

 others of antennae also coal black, beyond paler, and the annulations 

 so faint as almost invisible. Wings much as in C. apicale, the yellow 

 is a deeper and more reddish-yellow, and the apical black, which is 

 sharply limited, does not reach before the anastomosis ; in the hind- 

 wings the fifth fork barely reaches before the cross-vein. In shape the 

 fore-wings are plainly shorter and more truncate at tips than C. api- 

 cale. Expanse the same. 



Type. — c?. From Rio Negro, E. Colombia, 800 meters 

 (Fassl). 



Ceutroiiiacronenia exteiisiini n. sp. — Brown above, yellowish 

 beneath ; antennae yellowish ; fore-wings nearly uniform brown, like 

 some forms of C. aiiripenne, much of the hind-wings also similar, but 

 paler behind than in front. In venation similar to C. auripenne, ex- 

 cept the lower part of fork 5 is united for a short distance with the 

 next vein (not connected thereto by a cross-vein); in the hind-wings 

 the fifth fork extends much before the cross-vein. In shape the fore- 

 wings are longer and more slender than C. auripenne ; and the last 

 joint of the maxillary palpi, although very long, is not as long as in 

 C. auripenne and C. apicale. Expanse 44 mm. 



Type. — 6^. From Lino, Panama, 800 m. (Fassl). 

 CORDILLOPSYCHE n. gen. 



Related to Polycentroptis, with spurs 3, 4, 4 ; forks 1, 2, 3, 

 4, 5 in fore-wings ; forks 2, 3, 5 in hind-wings ; in hind-wings 

 discal cell is open; hind tibia nearly twice as long as hind 

 femora ; antennae not very slender ; stigma very long. 



Cordillopsyche costalisn. sp.— Pale yellowish, antennae almost 

 white; fore-wings with costal area nearly wholly brown, stigma dark, 

 rest of wing mostly pale brown, with many hyaline spots, one beyond 

 the anastomosis is in the form of a transverse band, a large dark spot 

 at the anal angle, and cubitus mostly dark bordered, a black dot in 

 thyridial cell below base of the discal cell ; hind-wings gray-hyaline, 

 with a long dark gray fringe. Expanse 15 mm. 



Type. — 9. From Cailon del Norte, Tolima, Colombia, 

 1700 m., March (Fassl). 



