NO. 14-11. 



A M ERICA N PA LEOZOIC INSECTS— HA XD L IRSCII 



707 



the niifldlc of the win^-. Radius continued far toward the apex. 

 Radial sector with f) nearly paraHel branches, the third of which 

 divides into 3 twigs. Above the radial sector only 1 straight brancli 

 issues from the radius. Media, 

 however, twice forked. Cul)itus 

 furcate, with numerous veinlets 

 extending" to the margin. Anal 

 area limited by an arcuate fold, 

 with several nearly straight lon- 

 gitudinal veins. Cross veins in 

 the costal area oblique, as well as 

 in tiie distal portion of the space 

 above the radius; l)ut in the basal 

 part of the wing they are straighter 



Pig. 34.— Blattinopsis anthracina. 



Between the branches of the 

 radial sector and the media, as well as in the post(aiV)ital area and 

 below the radius, are polygonal cells. In the smaller areas, these 

 cells are arranged in two rows, so that their connecting veins become 

 almost like accessory sectors, as in other species. 

 fTolot,/pe.—C^t. No. 38629, U.S.N.M. 



GLAPHYROPHLEBIA, new genus. 



In this genus the muuber of veins is much more reduced than in 

 those preceding. The media is free and forms a simple fork; the 

 radial sector has 5 simple branches, and the cu))itus sends out a series 

 of inclined branchlets which are directed backward without presenting 

 a typical forking. Anal area small, with few veins, and marked oil' 

 b}^ a nearl}^ straig-ht fold. Intercalary veins well developed. Cross 

 veins not very close; in the larger areas united in a net-like manniu-. 



GLAPHYROPHLEBIA PUSILLA, new species. 



Locality. — From a coal mine 150 feet deep, at Braceville, Grundy 

 County, Illinois, Pennsylvanian; Kittanning- ? (Allegheny) stage. 



Length of the front wing, 10 

 mm. Anterior margin moder- 

 ately curved, apex very broadly 

 rounded. Costal area broad, 

 Subcosta reaching not far be- 

 yond tlie middle of the wing. 

 Radial sector emerging above 

 the middle of the wing and 

 sending out successively to 

 the apical border 5 simple 

 branches, which diverge in a fanlike manner. Media free, divided 

 into a large fork about in the middle of the wing. Cubitus vaulted, 

 not furcate, sending out backward about 5 branches with accessory 

 sectors lying between them. Anal area small, defined anteriorly by 



Fl<i. Sf). — GLAPHYROPHLEBIA PUSILLA. 



