NO. 1441. AMERICAX PALPJOZOIC INSFJ TS—HANDLIRSCH. 7^5 



developed cubital vein, and also in the pointed form of the front wing, 

 which i.s almost 3 times as long- as Iji-oad. The anal area is propoi-- 

 tionall}' short, and its veins run parallel with t\\o anterior mai-gin. 

 Cross veins appear to be wanting-. No intercalary veins. 



EPHEBOBLATTA ATTENUATA ( Scudder. ) 



JVeorthroblaithut attenuata Sci-udek, Proc. .Vrail. Xat. Sci. I'liila., 1885, \i. 110; 

 Mem. Boston Soc, IV, 1890, pp. 4H7, 4BS, pi. xlii, fi-r. 1. 



Locality. — Fairplay, Coh)rad(). Lower Permian. 



SCUTINOBLATTIN A Scudder. 



A somewhat doubtful genus. The front wings are pointed. The 

 costal area is reduced and is replaced by the radius, which still reaches 

 out to the posterior border somewhat across the tip. The media 

 appears very much reduced; the cubitus, on the other hand, is nor- 

 mally developed. Anal area large, with numerous veins. Cross and 

 intercalary veins appear to be wanting. 



SCUTINOBLATTINA BRONGNIARTI Scudder. 



Hcatinuhlattiud brongnidrti Scudder, Proc Acad. Nat. Sci. Phila., 1885, p. 110; 

 :Mem. Boston Soc, IV, 1890, ]>. 4(59, j)!. xlii, fig. 5. 



LoeaUty. — Fairplay, Colorado. Lower Permian. 



Family DIECHOBLATTINID.F, new family. 



This family agrees with the mesoblattinids in the striking reduction 

 of the costal area, but is distinguished fi'om them by a marked degen- 

 eration of the media; consequently, in place of the subcosta, the cu])itus 

 follows immediately after the encroaching radius, and thus the entire 

 surface of the wing, aside from the normally preserved anal area, is 

 tilled up with the ])ranches of these two main veins. The forms of 

 this group are found in small numbers in the Permian and Jura 

 formations. 



NEPIOBLATTA, uew genus. 



Front wing lancet-shaped, more than 2^ times as long as wide. 

 (Postal area restricted to a small swelling at the base of the anterior 

 margin, without veins. Radius gently vaulted, extending to the tip, 

 with al)out 7 in part compound branches directed forward. Cubitus 

 parallel and passing near the main stem of the radius, with about 5 

 normal, in part furcate, branches running out posteriori}'. Anal area 

 large, marked oli' by a curved suture, in which the majorit}' of the 

 veins fuse. Intercalar}' veins wanting; cross veins are % not preserved. 



NEPIOBLATTA INTERMEDIA (Scudder). 



Scutinoblattina intermedia Scudder, Proc. Acatl. Nat. Sci. Phila., 1885, p. Ill; 

 Mem. Boston Soc, IV, 1890, p. 469, jtl. xlii, fig. 4. 



Locality. — Fairplav. Colorado. Lower Permian. 



