. I MJ'JIUCAy VALKOZOK ' INSFJ TS—HAXDJJRSl J/. 



(>83 



Family .ENIGMATODID^E, new faniil.v. 



T here place a new paheodictyopteran form from the middle of 

 the Upper Carboniferous of North America, which does not (11 tie i- 

 essentially from all other forms of this yroiip. 



The wing- is strong!}' ai'ched and apparently of firmer texture, 

 broadly rounded at the apex. 'Vho anal area is not eidarged. 



yENIGMATODES, new genus. 



The subcosta reaches nearly to the apex of the wing'. Radius 

 simple; radial sector divided into 8 members. Media seimrating into 

 4 V)ranches. Below the media follows an oblique vein directed to 

 the inferior margin and terminating' in a short fork; then 3 simple 

 veins. Avhose strongly cui'\ed ends merge into the lower liorder. The 

 last 2 of these veins prol)ai)ly belong to the anal grouj). Th(^ inter- 

 calai'v venation consists in })art of regulai" stout cross veins and in part 

 of a polygonal network. 



.EMIGMATODES DANIELSI, new species. 



L(Hy(//'ff/. Mazon Creek, near Moi-ris. Illinois. Pennsylvanian; 

 Kittanning ( (Allegheny) stage. 



Fir. 9.— .Enigmatodes danielsi. 



Leng'th of the preserved fragment. IS mm.; ])robable length of the 

 entire wing, 20 mm. 



Daniels collection. Reverse of holotype in the U. 8. National 

 Museum; Cat. No. 35578. 



PAL.l^:ODlCTY()FPERA INCERT.E SEDIS. 



The following' forms are too imi)ert'ectly preserved for accurate 

 description, but most probabl}' the\' all belong in the order Paheo- 

 dictyoptera. 



