744 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xx:x. 



shoots reaching forward to the apical border. The cubitus with its 6 

 branches takes up the greater part of the posterior margin. No cross 

 veins are to be seen. Perhaps this genus will be combined with 

 PhyloMatta. 



PAREINOBLATTA EXPUNCTA (Scudder). 



Etoblattina e.vpimcUt Scudder, Bull. U. S. Geol. Siirv., No. 124, 1895, ]>. 79, ])1. 

 V, fig. 6. 



Lomlity. — Oassville, West Virginia. Dunkard formation; Lower 

 Permian. 



Rolotype.—OAt. No. 38192, U.S.N.M. 



SYMPHYOBLATTA, new genus. 



Front wing similarly shaped as in PhyloUatta, about 2i times as long 

 as wide. Costal area broad, reaching two-thirds the length of the wing. 

 Radius extending in a nearly- straight course to the upper part of the 

 apical margin, with about 6 to 7 regular simple branches. As in 

 Pareinoblatta ., the media and the radius are united almost to the first 

 third of the length of the wing, then the latter advances obliquely to 

 the extremit}^ of the inner margin, with 3 (or 4 ?) simple offshoots 

 directed toward the apical border. Cubitus wdth its 3 (or 4 ?) in part 

 furcating branches taking up the greater part of the posterior edge. 

 AnaJ area large, with 8 veins. Cross veins present. Perhaps this 

 genus also will be combined with Phylohlatta. 



SYMPHYOBLATTA DEBILIS (Scudder). 



Etoblattina drbilif! Scudder, Bull. IT. S. Geol. Surv., No. 124, 1895, p. 71, pi. iv, 

 fig. 8. 



Locality. — Cassville, West Virginia. Dunkard formation; Lower 

 Permian. 



6%pfts'. -Cat. No. 38197, U.S.N.M. 



APEMPHERUS, ne^^^ genus. 



Front wing shaped like that in Pliylohlatta., 2^ to 2| times as long 

 as broad, costal area extending one-half to two-thirds the length of 

 the wing. Radius slightly vaulted and fusing with the end of the 

 anterior margin, with 4 to 7 branches. Media continuing obliquel}" to 

 the extremity of the inner border, with 3 to 5 branches running oti' 

 forward toward the apical margin and some running off backward to 

 the posterior border. Cubitus reduced, with its about 5 veins taking 

 up onl}^ the middle portion of the posterior margin. Anal area witii 

 tuunerous veins. No cross veins to be seen. 



Type of genus, ApempJierus coinplexinervU (Scudder). 



