NEW GENERA AND SPECIES OF THE MELANOPLI 



FOUND WITHIN THE UNITED STATES 



AND CANADA 



(ORTHOPTERA, ACRIDIDAE). 

 PARTS V AND VI 



BY MOKGAN HEBARD 

 (Plates XXII-XXVII) 



Unless otherwise noted the material here studied is in the 

 collection of the author, deposited at the Academy of Natural 

 Sciences of Philadelphia. Duplicates of all series, however, col- 

 lected jointly by Rehn and Hebard belong to that Institution. 



V. THE GRACILIS, VIRIDIPES AND TRIBULUS GROUPS 



Over twenty years ago the author decided upon specializing on 

 the Group Melanopli as found in North America, and a number 

 of papers dealing with this subject have already been published. 1 

 It is now realized that years must elapse before sufficient material 

 can be assembled and studied to make the treatment of certain 

 groups as definite and final as is already possible for the majority. 

 The literature on certain species is highly unsatisfactory and this 

 is particularly true of Melanoplus viridipes and its nearest 

 relatives. We therefore present at this time a study of the 



1 1917. Notes on Mexican Melanopli. Proc. Acad. Nat. Sci. Phila., 

 1917, pp. 251-275. 



1918. New Genera and Species of Melanopli found within the United 

 States. Trans. Amer. Ent. Soc, xliv, pp. 141-169. 



1919. New Genera and Species of Melanopli found within the United 

 States. Part II. Trans. Amer. Ent. Soc, xlv, pp. 257-298. 



1920. New Genera and Species of Melanopli found within the United 

 States. Part III. Trans. Amer. Ent. Soc, xlvi, pp. 355-403. 



1922. New Genera and Species of Melanopli found within the United 

 States and Canada. Part IV. Trans. Amer. Ent. Soc, xlviii, pp. 49-66. 



1923. An Interesting New Species of the Genus Melanoplus from Central 

 Georgia. Ent. News, xxxiv, pp. 260-262. 



(337) 



TRANS. AM. ENT. SOC. LX. 



