1907.] NATURAL SCIENCES OF PHILADELPHIA. 55 



These specimens have the coloration much subdued and with gray- 

 hrowns the predominating color value. The Palmerlee specimen is of 

 a warmer brown than the others, and in the Carr Canyon series the 

 yellows usually have a greenish cast. 



Melanoplus regalis (Dodge). 



Carr Canyon, Huachuca ]\Iountains, August, 1905 (Skinner), 2 9 . 

 September 23 and 24, October S, 16-17, 1905 (Biederman), 4 d', 14 ? . 

 Palmerlee, June 13, 1905 (Schaeffer), 1 9 . 



A pair of this form was submitted to Prof. Bruner, who was respon- 

 sible for the transference of Dodge's species from /Eoloplus to this 

 genus," and his opinion confirmed the author's suspicion that they 

 represented Dodge's very poorly described species. It belongs to the 

 jemur-rubrum series and must have a very great superficial resemblance 

 to M. sanguineus Bruner,^^ judging from the description of the latter, 

 and in a number of ways also suggests M. corpulentus, which, however, 

 is very different structurally. 



The coloration of the series examined is very interesting and shows 

 considerable variation in the intensity of purplish-reds and greens, 

 which on a yellowish ground and varied with umber markings con- 

 stitute the main color features. In by far the majority of the speci- 

 mens the green is conspicuous. In all the specimens the crimson 

 ventral sulcus of the caudal femora and the glaucous tibise are marked, 

 and very little variation in the color of the same is noticed. 



Melanoplus corpulentus Scudder. 



Carr Canyon, Huachuca Mountains, September 21, 23 and 24, 

 October 8, 16-17, 1905 (Biederman), 9 d", 7 9. Palmerlee, August 7, 

 1905 (Schaeffer), 1 d', 1 9. 



This series varies considerably in size and somewhat in the intensity 

 of pattern and general shade of the coloration; a few individuals have 

 their general color more grayish than the average, others more yellow- 

 ish. The caudal tibise are glaucous in five of the series. The length 

 of the tegmina and wings varies considerably and is more pronounced 

 in the male than in the female. 



Melanoplus thomasi Scudder. 



Douglas, August, 1905 (F. H. Snow), 1 d. 



This striking species is here recorded from Arizona for the first, this 



"> In Gillette, Bull. 94, Colo. Agr. Exp. Sta., p. 55. 



" Two specimens from the Garden of the Gods, Colorado, recently recorded 

 by the author (Proc. Acad. Nat. Sci. Phila., 1906, p. 406) as sanguineus prove on 

 second examination to be regalis. The superficial resemblance between these 

 two is so great that -n-ithout authentic material the two are liable to be confused. 



