760 PROCEEDING,^ OF THE NATIONAL MUSEUM. vol. xxix. 



SYSCIOBLATTA, new genus. 



Very similar to the two preceding o-enera. Costal area band shaped, 

 extending- one-half to two-thirds the length of the wing. Radius 

 divided into 2 main offshoots, the superior of which sends out anteriorl}^ 

 at least 4, l)ut usually more twigs, while the inferior one branches off 

 in various ways. Media with few branches directed forward. Culiitus, 

 anal area, and form of the wing like those in the foregoing genera. 

 Veins usually distinctly bordered. 



Type of genus, Syxdohlatta (loJirtiii (Scudder). 



SYSCIOBLATTA EXSENSA (Scudder). 



Etohlati'ma exsensa Scudder, Bull. U. S. Geol. Surv., No. 124, 1895, p. 8(i, pi. vi, 

 figs. 7, S. 



Loealtty. — Richmond, Ohio. Conemaugh formation; shales above 

 the Ames limestone. 



SYSCIOBLATTA OBSCURA, new species. 



Etoblattina maledicta Scudder (part), Bull. U. S. Geol. Surv., No. 124, 189.5, p. 

 83, pi. VI, fig. 2 (not figs. 1, 3). 



Zocaliti/. -^Richmond, Ohio. C^onemaugh formation; shales a))ove 

 the Ames l»imestone. 



SYSCIOBLATTA ANOMALA, new species. 



Locality. — Wills Creek, near Steubenville, Ohio. Conemaugh foi-- 

 mation; shales above the Ames limestone. 



A fragment of a very slender front wing, about 25 mm. long. The 

 superior branch of the radius separates into at least 6 (probably more) 



Fig. 63— SYSCIOBLATTA ANOMALA. 



twigs. Near its extremity the media first sends out anteriorly 5 short 

 simple branches. The cubitus forms about 10, almost entirely simple 

 offshoots. Veins distinctly bordered. 

 Holotype.—i^^i. No. 38653, U.S.N.M. 



SYSCIOBLATTA MINOR, new species. - 



Locality.— V\^\\\ii Creek, near Steubenville, Ohio. Conemaugh for- 

 mation; shales above the Ames limestone. 



