NEW GENERA AND SPECIES OF THE MELANOPLI 



FOUND WITHIN THE UNITED STATES 



AND CANADA 



(ORTHOPTERA: ACRIDIDAE) 

 PARTS X TO XIV 



BY MORGAN HEBARD 

 (Plates X and XI) 



In completing the arrangement of the brachypterous species 

 of the genus Melanoplus three new species and a new geographic 

 race have been located. In order to consider these properly, 

 I have treated here the Mancus and Texanus Groups and have 

 included supplements to my studies of the Femur-nigrum and 

 Indigens Groups already completed in the present series of 

 papers, 1 while a brief review of the Saltator Group is given in 

 order to clear up the existing confusion. 



My work on the North American Melanopli began in 1917 

 and the first contribution to the present series appeared the 

 following year. Including the present paper, two new genera, 

 fifty-six species and fifteen subspecies of this category will have 

 been described. Two species only, Melanoplus foxi and Mela- 

 noplus beameri have been treated outside this series and one of 

 the species has been synonymized. 



In the first sections only new species or races were consid- 

 ered, but later all the species of the Groups involved have in 

 many cases been included in order to gain greater clarity. I 

 would here reiterate my statements, made in 1919, that Scud- 

 der's grouping of many of the forms has been found incorrect 

 and that, particularly in the genus Melanoplus, his " Series " 

 are in so many cases composed of widely separated species that 

 a complete rearrangement was found necessary. I had there- 

 fore rearranged the species of Melanoplus into " Groups ", 

 these " Groups " not in any way corresponding to Scudder's 



1 The first of these the second section of part VI, Trans. Amer. Ent. Soc, 

 lx, p. 368, (1935) and the second of these part VII, Trans. Amer. Ent. Soc, 

 lxii, p. 168, (1936). 



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TRANS. AMER. ENT. SOC., LXIII. 



