322 iiKi'oirr of siwi'm ciiolocist. 



Measurements: Length of body, male, 20 mm., female, 22 mm.; 

 of antennas, male, 9.5 mm., female, 8 mm.; of pronotum, male and 

 female, 5 mm.; of tegmina, male, 17 mm., female, 16 mm.; of hind 

 femora, male and female, 12 mm. 



This is one of the most common locusts about the south shore of 

 Lake Michigan occurring in company with M. atJanis (Riley), 

 Spharagemon wyomingianum (Thos.), and others over a large part of 

 the sandy area within five miles of the lake. It seems to prefer 

 such barren localities to those more promising in plant food, since 

 Bruner mentions its partiality for "old breakings and well-fed pas- 

 tures of many years' use." It probably begins to reach maturity 

 some time in June, as numerous specimens have been found mating 

 in late July. 



The hind tibias of at least a third of the specimens noted were red 

 instead of blue. Scudder* has based his separation of his nominal 

 species coccineipes on the color of the tibire and degree of maculation 

 of the tegmina, two extremely variable characters. The cerci and 

 furcula of the red-legged male are the same in form as of the blue- 

 legged one, and I have therefore combined the two species. In this 

 view I am supported by Prof. A. P. Morse, who has kindly compared 

 specimens from northern Indiana with Scudder's types. 



Angustipennis is a western species, and has not been noted east of 

 Kansas and' Iowa, except in the sand dune region of northwestern 

 Indiana. According to Bruner, it ranges from North Dakota to 

 Texas, and west to Yellowstone, Montana. He also states that it 

 is increasing rapidly in numbers, and is likely in places to become a 

 serious pest. The vegetation of the area which it at present inhabits 

 in Indiana is not sufficient in quantity and value to enable it to do 

 much damage. Several successive favorable seasons might, however, 

 enable it to so increase in numbers as to cause it to migrate into the 

 richer agricultural regions to the south and east. 



72. Melanoplus >unor (Scudder). 



Caloptemis minor Scudd., 152, XVH, 1875, 478; Id., 15 3, IV, 1875, 

 77; Id., 164, 1879, 22. 



Melamplus minor Scudd., 164, 1879, 84; Id., 179, XXXVI, 1897, 29, 

 35; Id., 18 1, 1897, 137, 337, Plate 22, Fig. 9; Id., 188, 19()0, 

 61; Bl., 4, XXni, 1891, 81; McN., 88, VI, 1891, 74; Beut., 3, 

 VI, 1894, 307; Lugg., 84, 1898, 201, Fig. 127; Morse, 100, 

 ^^^, 1898, 256, 259, 293, Plate 7. Fig. 42. 



Size, medium. Vertex but little elevated above the pronotum; the 

 interspace between the eyes nearly twice (male) or three times 



■•■'"Revision of the Melanopli," p. 136. 



