AMERICAX PA LKOZnlC INSEVTS—HANDLIRSCH. 



747 



STYGETOBLATTA LATIPENNIS, new species. 



Locahiiii. —Wills Creek, near Steal )euvi He. Ohio, Conemaugh for- 

 mation; shales above the Ames limestone. 



Fig. 62. — STYGETOBLATTA LATIPENNIS. 



Length of the front wing, about 16 mm. 

 noloty2je.—OAt. No. 38642, U.S.N.M. 



METACHORUS, new genus. 



Front wijiig of nearly coixlatt^ outline, about twice as long as broad. 

 Costal area short, triangular, and not extending beyond half the 

 length of the wing, with about 4 to 5 veins issuing successively from 

 the subcosta. Radius divided into 2 main branches almost eijually 

 compound, the tirst of which sends out its twigs to the anterior bor- 

 der, while the twigs of the main inferior ])ranch fuse in the apical 

 margin. Media with 1 to 2 branches extending forward toward the 

 lower portion of the tip. Cubitus strongly vaulted, with only 3 or 4 

 branches. The large anal area, defined by a strongly curved fold, 

 reaches nearly half the length of the wing. In one species I discern 

 distinct, delicate cross lines V)etween the veins. 



Type of genus, Metachorus testndo (Scudder). 



METACHORUS TESTUDO (Scudder). 



Proini/lac7-is testudo .Scuddek, Mem. Boston Sor., IV, 1890, p. 403, pi. xxxir 

 Hg. 6. 



Locality. — Mazon Creek, near Morris. Illinois. Pennsylvanian: 

 Kittanning^ (Allegheny) stage. 



rieslotyjjc— Cat. No. 88158, U.S.N.M. 



