740 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxix. 



the wino-. The intercalary venation consists of irregular cross veins, 

 thus causing- the wing to appear reticulat(\ 



This Form is closely connected with Plujlohlattd^ and ditlers princi- 

 pally in the form of the costal area. 



METAXYS FOSSA fScudder). 

 EtohlaUina fosm Sccddek, Bull. V. S. Ueol. Siirv., No. 124, 1895, ]>. 70, pi. iv, 



Locality. — Richmond, Ohio. Conemaugh formation; shales al)o\'e 

 the Ames limestone. 



AMOEBOBLATTA, new genus. 



This genus stands ver}^ close to PJtylohlatta.^ l)ut difiers in the expan- 

 sion of the radius, vt^hich spreads over a large part of the apical mar- 

 gin, together with a reduction of the anastomosing- media. Costal 

 area extending almost four-fifths the length of the wing. Radius with 

 ?> furcate and 1 simple braiK-hes, which occup}^ the larger part of the 

 apical border. Media with but 1 short branch. Cubitus normal, with 

 7 simple offshoots. Anal area large, with 7 veins. The form of the 

 wing appears to be like that in Phylohlatta., about 2^ times as long as 

 broad. Cross veins are present. 



AMOEBOBLATTA PERMANENTA (Scudder). 



Oerablatt'ma permanenta Scvdqer, Bull. U. S. Geol. Surv., No. 124, 1895, p. 121, 

 pi. X, fig. 12. 



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

 Permian. 



LLolotype.^C^i. No. 3806J:, U.S.N.M., 



LIPAROBLATTA, new genus. 



Related to Pitylohlatta, but differing- in the broader, more oval form 

 of the wing's, which are not quite twice as long as wide. The costal 

 area extends nearly four-fifths the length of the wing and is band- 

 shaped. The radius sends 3 to 4 variously branched members for- 

 ward and takes up the upper part of the apical margin. The media 

 proceeds obliquely to the end of the inner border and sends out 2 to 4 

 branches forward to the apical margin. The cubitus, with its 4 to .') 

 offshoots, occupies the greater portion of the posterior border. Anal 

 area large, but short, with a limited luimhei- of branches. Cross veins 

 are to be seen. 



Typti of g-enus, LijxinMatta orata (Scudder). 



