14 NEUROPTERA OF NORTH AMERICA. 



16. P. aurantiacus ! 



Psocus aurantiacus Hag.! 



Orange-colored, shining ; head bright orange, occiput in the 

 middle dusky; antennae pale, brownish-black at the apex; thorax 

 orange with four cloudy spots upon the dorsum ; feet yellow, tarsi 

 fuscous at the apex ; abdomen yellow ; wings yellowish-hyaline, 

 pterostigma bright yellowish green ; veins yellow, apical ones 

 fuscous ; cellule of the posterior margin orbicular. (Female.) 



Length to tip of wing 3^ millim. Expanse of wings 6 millim. 



Hob. Dalton, Georgia (Osten Sacken). 



Fam. IV. PERLINA. 



Body depressed, elongated, parallel; prothorax large; an- 

 tennas long, setaceous; wings unequal, posterior ones 

 broader ; tarsi three-articulate. 



"j" Tivo abdominal setce. 



* Wings charged with many irregular transverse veins. 



PTERONARCYS Newman. 

 Wings densely net-veined ; palpi setaceous ; mandibles mem- 

 branaceous. This genus is very abnormal on account of its imago 

 being furnished with external branchiae. 



1. P. proteus ! 



Pteronarcys proteus Newman! Entom. Mag. V, 177, 3. Walk.! Catal. 

 139, 1. Grosse, Canadian Naturalist, fig. — , p. 232. 



Fuscous, head broader than the prothorax ; antennse paler at 

 base ; sides of the prothorax emarginate, a little broader poste- 

 riorly, an interrupted yellow line upon the middle. (Is it so always ?) 

 Feet yellowish-fuscous, bnees yellow; abdomen beneath yellowish; 

 the caudal setae luteous, paler at base ; £ last ventral segment 

 yellowish, narrower, sparsely punctured ; 9 ? antepenultimate seg- 

 ment truncated, armed with two distant, conical, yellowish append- 

 ages ; wings pale grayish-hyaline, veins fuscous, clouded. 



Length to tip of wings 38 — 48 millim. Expanse of wings 

 73—90 millim. 



Bab. Trenton Falls, New York (Doubleday) ; Mackenzie River 

 district (Richardson) ; North Red River (Robt. Kennicott). 



