A MERK 'A X PA L KOZO IC INSECTS— HA XDL IRSCH. 729 



area extends two-thirds to three-fourths the leng-th of the wino-. 

 and forms a \'erv pointed trian<^l(\ The branches of the subcosta 

 are luiited into several groups and ve y obliipiely placed. The radius 

 forks near the base of the wing-, and its superior branch, divided 

 into several twigs, advances obliquely to the anterior border, while 

 the posterior twigs of the copiousl}" branched main inferior off- 

 shoot fuse in the apical margin. The media stretches obliquely to the 

 lower extremity of the apical edge, and sends out forward a series of 

 simple or compound branches in a nearly horizontal direction toward 

 the apical luargin. The cubitus gives off a larger luimber of mostly 

 simple branches toward the inner border x\\\d{\n E((iNorj>Jiohlatt<ihei'()s) 

 one furcate oifshoot forward to the lower edge of the apical margin. 

 The anai area occupies more than one-third the length of the wing. 

 Cross veins are delicate and regular, very thickl}^ crowded. 



Type of gemis, Euynorplioblaita Ji.eroa (Scudder). 



This g-enus is also represented in Europe. 



EUMORPHOBLATTA HEROS ( Scudder) . 



Necymylacrln heros Scudder, Mem. Boston Soc, 111, 1879, ]>. 54, pi. v, &g. 9. 



locality. — Cannelton, Pennsylvania. Allegheny formation; Kit- 

 tanning g-roup; roof of the Middle Kittanning coal. 

 IIo/ot(/j>e.~Ct\t. No. ;-^8<)5<), U.S.N.M. 



METAXYBLATTA, new genus. 



Front wing elongate-ovat(\ only a little more than twice as long as 

 ))road. Costal area the length of half the wing, wider at the l)ase, 

 anil of more triangular form, with 5 (to (V^) mostly compound veins. 

 Tne radius runs out nearly straight from the base to the end of the 

 anterior border, and sends out 7 luostly forked oblique branches for- 

 ward to the anterior margin; l)y dichotomous forking, the first of 

 these offshoots separates into -l twig's. The slightly vaulted media, 

 with its 6 in part compound branches running ott' forward, takes up 

 the entire apical margin. The cubitus advances obliquely to the end 

 of the posterior border, and sends otf to it 7 simple, reg-ular branches. 

 The small anal area contains few veins and is defined by a very slightly 

 curved fold; it reaches about three-sevenths the length of the wing. 

 I was able to make out nothing either of structure or cross veins. 



