748 



PROCEEDINGS OF THE NA TIONAL MUSEUM. 



VOL. XXIX. 



METACHORUS STRIOLATUS, new species. 



Locality. — Indian Territory. Ponusylvaniuii; t Allegheny stage. 



Length of the front wing, 15 mm. Costal area somewhat shorter 

 than in Metachonix tei^firdo. Fine, close cross stripes are distinctly 

 to be seen. 



Fl<;. 53.— METACHORUS STRIOLATUS. 



Holot(/j>f'.— Cat. No. 35886, U.S.N.M. 



Collector, J. A. Tati', of the U. S. Geological Survey. 



OXYNOBLATTA, new genus. 



Front wing cordate, twice as long as wide, and running oti' rather 

 pointed. Costal area broad, not reaching quite two-thirds the length 

 of the wing, with about -i to 5 obli({ue veins, issuing successively from 

 the subcosta. Radius divided into 2 main branches, and each of these 

 into 4 twigs, all of which end in the front margin. The strongly 

 arcuate media sends otf 2 compound and 1 simple branches forward 

 to the tip of the wing and to the extremity of the posterior margin. 

 Like the media, the cubitus is vaulted and sends out 1 compound 

 and 4 simple branches to the inner margin. The anal area occupies 

 about two-tifths the length of the wing. Structure leathery. 



Type of genus, (J.f//noNatta (dutacer/, new^ species. 



OXYNOBLATTA ALUTACEA, new species. 



Locality. — Furnace Hollow, near mouth of Labor Creek, Wayne 

 County, West Virginia. Allegheny series. 



Fig. 54.— OXYNOBLATTA ALITTACKA. 



Length of the front wing, about 14 mm. 

 remarkably pointed shape. 



Distinguished by the 



