1906.] NATURAL SCIENCES OF PHILADELPHIA. 367 



eastern States and New Jersey, appears to be slenderer with longer 

 wings. However these differential characters are only averages, 

 numerous specimens which cannot otherwise be separated from the 

 usual pratorum type being intermediate in proportions. 



The species was found in short marshy grass growing about a shallow 

 pond in the prairie. Considerable search was required to find the ten 

 specimens captured. 

 Orphulella salina Scudder. 



Grand Junction, Colorado, Aug. 15, 1 6^. 



This species has previously been recorded from Grand Junction and 

 Montrose, Colorado, by Caudell,* and Grand Junction and Delta by 

 Gillette.^ 



This specimen was taken in short grass near the Grand river, in a 

 locality which had been recently inundated. No other specimens of 

 Orthoptera were seen about this location. 



DICHROMORPHA Morse. 

 Dichromorpha viridis (Scudder). 



Table Rock, Pawnee Co., Nebraska, Aug. 25, 1 c?, 1 9 . St. Louis, 

 Missouri, Aug. 27, 2 9 . 



In both localities plentiful among thick grass and weeds. 



CHLOiiALTIS Harris. 

 Chloealtis abdominalis (Thomas). 



Summit of foothill of Gallatin Range, Mammoth Hot Springs, 

 Yellowstone Park, 7,000 feet, Aug. 5, 4 d", 7 9 . Manitou, Colorado, 

 6,300-6,900 feet, Aug. 23, 7 d", 4 9 . 



The male individuals are inseparable from a specimen of the same 

 sex from Pequaming, Michigan, while the females are similar to 

 individuals of that sex from Manitoba and Truchas Peak, New 

 IMexico. The Truchas Peak specimen is slightly smaller with rather 

 slenderer caudal limbs. 



This species was doubtfully recorded from Colorado by Cockerell ^ 

 as taken at Willow Creek, Cusack Ranch, Custer County, in September. 



At Mammoth Hot Springs I found this species in a small glade at 

 the top of the foothills. Here in the thick grass growing about a 

 clump of aspen the series listed above was taken with little difficulty. 

 The males of this species are ^-ery quick and wary, but the females are 



* Proc. U. S. Nat. Mus., XXVI, p. 782. 

 5 Bull. 94, Colo. Agr. Exp. Sta., p. 26. 

 « Trans. Amer. Ent. Soc, XX, p. 337. 



