12 NEUROPTERA OF NORTH AMERICA. 



tarsi fuscous ; wings hyaline, pterostigma large triangular, acute, 

 fuscous, internal angle paler ; posterior margin at base and a 

 discoidal nebula fuscous ; posterior wings hyaline. 



Length to tip of wings 6| niillim. Expanse of anterior wings 

 2 niillim. 



Hob. Nova Scotia (Redman) ; New York, Washington (Osten 

 Sacken, 1851) ; Pennsylvania (Zimmerman). 



10. P. quietus ! 



Psocus quietus Hag.! 



Luteous ; the nasus luteous lineated with black, a spot at base 

 and two anteriorly black; front luteous varied with black; antennae 

 pale ; thorax black ; feet pale luteous, tibise at base and apex 

 obscurer ; wings hyaline, veins luteous, pterostigma triangular, 

 inferior angle rounded, obscure. 



Length to tip of wings 5 millim. Expanse of anterior wings 

 9 millim. 



Hab. New York; Dalton, Georgia (Osten Sacken). 



* * Discoidal cellule open, absent. 



11. P. mobilis ! 



Psocus mobilis Hag.! 



Pale brown, hairy ; wings hyaline, pterostigma narrow, ovate ; 

 cellule at the posterior margin free, elliptical. 



Length to tip of wings 2J millim. Expanse of anterior wings 

 4| millim. 



Hab. Cuba (von Winthem). Described from a single damaged 

 specimen. 



12. P. madidus ! 



Psocus madidus Hag.! 



Pale luteous ; nasus brassy fuscous, lineated with obscure gray, 

 two spots upon the occiput and a third upon the front black; 

 antennae pallid ; tibiae obscurer at base ; wings pale gray, with two 

 paler obsolete bands, the veins luteous; pterostigma narrow, ovate; 

 no posterior marginal cellule. 



Length to tip of wings 3^ millim. Expanse of anterior wings 

 6 millim. 



Hab. New York ; Dalton, Georgia (Osten Sacken). 



