192 NEUROPTERA OF NORTH AMERICA. 



marked with brownish-black points ; appendages of the male stout, 

 oblique, obtuse. (£ and 9). 



Length to tip of wings 35 — 42 millim. Alar expanse 60 — 10 

 millim. 



Hab. Dalton, Georgia ; Berkeley Springs, Yirginia (Osten 

 Sacken) ; Northern Illinois (Robt. Kennicott). 



CORYDALIS Latreille. 



Prothorax quadrangular, much narrower than the head ; three 

 large, approximate ocelli; antennas filiform; mandibles of the 

 male often extremely long, incurved ; wings numerously veined ; 

 the transverse veins stout ; appendages of the male forcipated ; 

 tarsi cylindrical. 



The larva is aquatic, furnished with abdominal branchiae. 



1. C. cornuta ! 



Raphidia cornuta Linne, Syst. Nat. ed. XII, 916, 3. — Hemerobius cornutus 

 Linne, Syst. Nat. ed. X, 551, 14; De Geer, Mem. Ill, 559, 1; tab. 

 xxvii, fig. 1 ; Fab. Sp. Ins. I, 392, 1 ; Mant. Ins. I, 246, 1 ; Entom. 

 Syst. II, 81, 1; Linne, Syst. Nat. ed. XIII. V, 2639,20— Corydalis 

 cornuta Latr. Gren. Crust, et Ins. Ill, 199, 1 ; Palisot Beauv. Ins. 

 Neuropt. tab. i, fig. 1 ; Oliv. Enc. Meth. VII, 59 ; Burin.! Handb. 

 11,950,1 ; Cuvier, Icon. Regn. Anim. ed. Masson. tab. civ. — Corydalus 

 cornutus Haldem. Journ. Acad. Boston, 1848, 158 ; tab. i — iii. 



Luteo-fuscous ; mandibles of the male elongated ; head large, 

 broad, the sides convex ; the occiput with impressed, yellow spots 

 and streaks, which are surrounded with fuscous; beneath, each 

 side, with an oblique yellow stripe ; prothorax much narrower 

 than the head, a little longer than broad, behind in the middle, 

 with a hastiform streak, and each side with irregular, elevated, flat 

 points, yellow ; feet lurid, the knees, and the apex and incisures 

 of the tarsi fuscous ; the males have four appendages, the superior 

 ones forcipated, infracted at the apex, dolabrate ; wings subcinereo- 

 hyaline, the veins fuscous, middle of the transverse ones, on the 

 anterior row of costal spaces, pale, the areoles each with two white 

 dots ; those of the disk with white points. 



Length to tip of wings 75 millim. Alar expanse 100 — 135 

 millim. 



Hab. Canada; Pennsylvania; New York ; Madrid; Carolina; 

 Northern Illinois (Kennicott) ; Maryland (Uhler). 



