44 AMERICAN NEUROPTERA. 



Two specimens from San Marcos, Nicaragua, and one from 

 Ormsby County, Nevada (Baker). Differs from M. moestus and M. 

 latus in smaller size, dark stripe on vertex and less dense venation. 



PSECTRA Hagen. 



Antennae moniliform ; wings with costal area narrow at base; no 

 true recurrent nervure ; two radial sectors ; and only one series of 

 gradate veins; margin entire ; in the only known species the female 

 lacks the hindwings. 



Type. — P. diptera Burm., the only species. 



Psectra diptera Burm. — Face shining black, vertex brown, antennse 

 brownish, thorax paler brown ; abdomen dark brown ; legs yellowish, brownish 

 on knees. Wings nearly hyaline; slightly marked with brown between the 

 veins; venation mostly brown; some of the longitudinal veins marked with 

 pale, a more or less distinct brown band on gradate series; pterostignia not dis- 

 tinct; hind wings nearly hyaline, costal margin darker on basal half; venation 

 pale, brown near tip. Basal joint of antennae rather large, vertex hairy, tibise of 

 legs swollen in middle; forewings rather slender, rounded at tip, subequal in 

 width throughout; costal area narrow at base; two radial sectors, the first soon 

 forked ; one gradate series, interrupted in the middle; hind-wings slender, three 

 radial sectors; no gradate series; female without hind wings. Expanse 5 to 6 mm. 



Specimens from Ithaca, New York ; Agricultural College Michi- 

 gan (Pettit) ; and Franconia, New Hampshire (Slosson). Fitch's 

 specimens were from northern Illinois, in October. It appears to 

 be more common in this country than in Europe. 



MICRO.^IUS Rambr. 



Antenme moniliform ; wings entire; subcosta ends in the mar- 

 gin ; costal area narrow at base, no recurrent vein ; three to five 

 radial sectors; two series of gradate veinlets. 



Type. — M. variegatus Fabr. 



A very easily recognized genus; there are two groups of our 

 forms, those with broad wings and those with slender wings. 



SYNOPSIS OP" SPECIES. 



1. The gradate veinlet of inner series that connects first radial sector to the me- 



dia!! is basad of the ojie above it, this series making an even gradate 



row ; wings rather short; five radial sectors aiigiilatns. 



This gi-adate veinlet is beyond the one above it, so that this series is b!-oken 

 and not even 2. 



2. Five radial sectors, the outer giadate series forming an even row 



inontaiiiis. 

 Four radial sectors or less 3. 



