1906.] NATURAL SCIENCES OF PHILADELPHIA. 415 



the steep hillside near the cog-wheel railway station. Orthoptera 

 were not very abundant, but sufficiently plentiful to make collecting 

 among the moimtain-loving plants interesting. 

 Melanoplus diiferentialis (Thomai?). 



Knob Hill, Colorado Springs, Colorado, Aug. 18, 1 ?. Roggen, 

 Weld Co., Colorado, Aug. 24, 1 d^ . Fort Morgan, Morgan Co., Colorado, 

 Aug. 24, 1 9 . St. Louis, Missouri, Aug. 27, 2 d^ . 



Very few specimens of this species were seen in Colorado. At St. 

 Louis, however, the weeds in every vacant field were filled wdth them. 

 Melanoplus bivittatus (Say). 



Gray Cliff, Sweet Grass Co., Montana, Aug. 4, 1 c?. Livingston, 

 Park Co., Montana, Aug. 4, 1 (5^. Muir, Bozeman Tunnel, Gallatin- 

 Park Co., Montana, Aug. 12, 1 (d . Sappington, Gallatin Co., Montana, 

 Aug. 12, 1 (d. Mammoth Hot Springs, Yellowstone Park, Aug. 5, 

 1 cJ*, 1 9 . Summit foothill of Gallatin range, 7,000 feet. Mammoth 

 Hot Springs, Aug. 5, 1 9 . Alfalfa field, five miles south of Salt Lake 

 City, Utah, Aug. 13, 4 d" , 3 9 . Knob Hill, Colorado Springs, Colorado, 

 Aug. 18, 1 d^. Garden of the Gods, Colorado, Aug. 19 and 23, 1 d", 1 

 9 . Fort Morgan, Morgan Co., Colorado, Aug. 24, 4 d^ , 2 9 . Roggen, 

 Weld Co., Colorado, Aug. 24, 1 9. 



This species was more widely distributed than any other taken. 

 Although nowhere found in swarms, it was almost invariably plentiful 

 about the grasses and weeds growing in somewhat damp locations. 



DACTYLOTUM Charpentier. 

 Dactylotum piotum (Thomas). 



Garden of the Gods, Colorado, Aug. 17, 1 d^, 5 9 , 4 nymphs. Aug. 

 19, 4d',l 9, 3 nymphs. 



This species was found in a slightly moist grassy meadow. Con- 

 siderable time was occupied in searching for specimens and all adults 

 and nymphs met with were taken. 



TETTIGONID-ffl. 

 SCTIDDERIA St&l. 

 Soudderia furcata Brunner. 



Manitou, Colorado, 6,900 feet, Aug. 23, 2 d", 3 9 . 

 Taken in the oak thickets on the hillside. The species was quite 

 plentiful, but took to flight very readily. 



ORCHELIMUM Serville. 

 Orchelimum vulgare Harris. 



St. Louis, Missouri. Aug. 27, 8 d^. 



