1906.] NATURAL SCIENCES OF PHILADELPHIA. 405 



Springs, Colorado. Aug. 17 to 22, 7 d", 11 ? . Austin Bluffs, Colorado 

 Springs, Aug. 18, 1 9 . Prairie land, Colorado Springs, Aug. 18, 4 cJ^, 

 5 ?. Garden of the Gods, Manitou, Colorado, Aug. 17, 2 cJ", 8 9. 

 Pike's Peak, Colorado, Aug. 20, 1 d at Mountain View, 9,700 feet, 1 9 

 at 10,100 feet, 1 9 at Middle Hudsonian, 10.500 feet. 



The specimens here recorded from Emigrant, Montana, are, as far as 

 known, the most northern definite record except one from Bismarck, 

 North Dakota. The species has been recorded by Gillette from locah- 

 ties up to an altitude of 8,000 feet, and in view of the Pike's Peak 

 records here given it will be seen to extend to an elevation of at least 

 10,500 feet, and to be truly an alpine species. In size these Pike's 

 Peak individuals do not appear appreciably smaller than specimens 

 from the vicinity of Colorado Springs, and are considerably larger than 

 others from Durango, Colorado. 



From the material collected this species appears to frequent a 

 variety of habitats, from a distinctly arid region at Emigrant to a 

 grassy gully in the Garden of the Gods. On the whole this form 

 frequented the more sterile sections of the regions in which it was 

 collected. 

 Melanoplus flabellifer Scudder. 



Knob Hill, Colorado Springs, Colorado, Aug. 18, 2 o' . Garden of 

 the Gods, Manitou, Colorado, Aug. 17, 4 c^. 



These specimens are identical with Scudder's flabellifer in the form 

 of the cerci, but the validity of the species is, in the authors' opinion, 

 questionable. As Gillette has shown ,^5 a large series of specimens 

 will contain forms referable to true occidentalis, flabellifer and cuneatus, 

 and have a number of intermediates between these types as well. A 

 number of the specimens referred in this paper to occidentalis are not 

 typical of it, but were placed there as it is the older species and has 

 priority over flabellifer in case the latter is synonymized. This action 

 appears to us to be inevitable, but the material at hand is not extensive 

 enough to take such action. No specimens of the cuneatus type are in 

 the series. 



The specimens of this species were taken in the same localities as 

 M. occidentalis. 

 Melanoplus bowditchi Scudder. 



Grand Junction, Mesa Co., Colorado, Aug. 15, 3 d'. Newcastle 

 Garfield Co., Colorado, Aug. 16, 2 d" . 



These specimens are quite peculiar in appearance and not at all 



=>= Bull 94, Colo. Agr. Exp. Sta., pp. 53-54. 

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