1 86 AXEL LEONARD MELANDER 



four downward offshoots within the wing-area, of which the first 

 and fourth are basally furcate, and one from the anal angle. All 

 the veins are connected by rather distant cross-veins or scrobi- 

 culi, which are strongly oblique, though in a sense opposite to 

 those anterior to the mediastinal. 



Found in an ironstone nodule six miles southeast of Danville, 

 111., at Grape creek, by Mr. W. F. E. Gurley. 



Type. Pal. Coll. No. 9240. 



This species, while clearly belonging to the genus Dictyo7iejira 

 in the restricted sense of Scudder, not of Brongniart, is markedly 

 distinct from its congeners in the great development of the anal 

 vein. This vein has over twice as many branches as in any of 

 the other species. This is the first American form, all the others 

 being European from the Saarbruck basin. 



Section NEUROPTEROIDEA Scudder. 

 Family Homothetidae Scudder. 



14. Didymophleps contusa Scudder, 



Mejn. Boston Soc. Nat. Hist., Vol. III. pp. 330, 331, Plate 29, Fig, 6. 

 Type. Pal. Coll. No. 6392. 



15. Cheliphlebia extensa sp, nov, (Plate VI, Fig. 2 ; Plate VII, Fig, 9). 

 Body elongate, slender, subcylindrical, of moderate size. 



Head narrow, comparatively small. Prothorax narrow and pro- 

 longed. Legs rather robust. Wings large, overlapping on the 

 abdomen, broadest at the beginning of the outer fourth ; costal 

 margin nearly straight ; apex of wing broadly rounded ; medias- 

 tinal vein very short ; scapular vein long, extending to near the 

 tip of the wing, parallel with the costa, connected with the mar- 

 ginal by a series of moderately close, oblique, curved, simple 

 cross-veins. Externomedian vein first forked at the middle of 

 the wing; its lower stem simple, its upper again forked, and each 

 branch again dichotomizing, the upper twice, the lower once. 

 Internomedian vein emitting a number of gently curved, rather 

 distant, oblique branches from its lower side, parallel with those 

 of the externomedian, and filling the hinder portion of the wing. 

 Cross-veins feeble or possibly wanting altogether, except those 

 on either side of the scapular vein. 



Head subquadrate, small, slightly longer than broad, and 



