No.lli4. HEVISIOX OF THE MELAyOPLJ—SCUDDEIL 7 



able that the fully eqiiijiped form is here the normal, although, so far as 

 we now know, it is nuieh less eommonly found tlian the braehy])tei'ous 

 forms. Other instances where there is considerable but not so marked 

 nor ijerhaps so uniform a difference in wing length is in Varoxya Jiori- 

 dnnu and jjcrhaps HeHperofettix riridis^ in both which genera the length 

 (►f the tegniinais variable. In these two species the tegmina are not 

 sipically broad in the macropterous forms, and differ only in length from 

 the brachypteroas forms. 



Materials, etc. — The si)ecimens forming the basis of the present study 

 ure in my own cabinet, which contains, often in large series, the greater 

 portion of the species, collected in large part by myself in different 

 sections of the country, but supplemented by specimens secured from 

 the Texan collections of Boll and Belfrage, a large series from Iowa 

 and Illinois obtained by Doc _ir J. A. Allen, and others from the S<uith- 

 western States and Mexico by Edward Palmer; besides the entire col- 

 lection of Mr. P. R. Uhler, who many years ago generously turne<l over 

 to me his own private collection, containing among other things many 

 8})ecimens obtained from the early exi)lorers of the West. 



Through the favor of the Assistant Secretary of the Smithsonian 

 Institution, in charge of the United States National ^Museum, Doctor (f. 

 Brown (ioode, and the Honorary Curator of Insects in the same insti- 

 tution, Doctor C. V. liiley, I have had the Museum's entire collection of 

 Melnnopli in my hands during this study. The collections of the 

 Museum of Comparative Zoology in Cambridge, Massachusetts, have 

 also been open to me. My neighbors and colleagues, Mr. Samuel Hen- 

 shaw and Mr. A. P. Morse, have also placed all their Melanopli in my 

 hands; and from Professor Lawrence Bruner, of Lincoln, Nebraska, I 

 have received a complete series of all the forms known to him, which has 

 been on the whole the Liost imimrtant aid I have received. Professor 

 Jerome McNeill, who had begun a study of the Melanopli, mainly of the 

 National Museum,not only generously transferred the work to my hands, 

 but gave me free use of his notes and sent me several species otherwise 

 unknown to me. The University of Kansas sent me a series of interest- 

 ing western forms in its museum, Mr. W. S. Blatchley a series of the 

 Indiana species known to him. Professor C. P. Gillette interesting forms 

 from Colorado, and Professor II. E. Weed a few from Mississippi. All 

 of these gentlemen have freely answered many inquiries made of Vuem, 

 and any failing in the present paper must be laid at my dod. In this 

 way I have seen the tj pes of nearly all the species described from 

 North Ameri( a, and while in England Mr. Samuel Henshaw kindly 

 examined for me several of Walker's types at the British Museum. I 

 have been further aided for the European species by Ilofrath Brunner 

 von Wattenwyl, Doctor Chr. Aurivillius, and Mons. A. de Bormans. 



In all, I have examined for the purposes of this paper nearly eight 

 tliousand specimens, of which about seven thousand belong to the 



