114 PROCEEDINGS OF THE ACADEMY OF [March, 



Length of Length of Length of Length of 

 body. pronotum. tegmen. caudal femur. 



Glen, Nebraska 41 6.4 29.7 23.2 



North Platte, Nebraska 37.8 5.8 26 21 



North Platte, Nebraska 42 6.5 30.2 23.9 



West Point, Nebraska 38 6.4 27.8 22 



West Point, Nebraska 42 6.7 29 23.5 



Syracuse, Kansas 48.4 7 32 26 



Hollister, Missouri 34 5.5 27 21.2 



Muscatine, Iowa 37 6.3 30 23.2 



Onawa, Iowa 37.7 6.5 28.5 22.5 



Lone Rock, Wisconsin 32.7 5.4 23.8 19.5 



Havana, Illinois 39.5 5.5 25.6 22.2 



Maple Peak, Utah 43 7 30.5 25.4 



Maple Peak, Utah 42.5 6.5 29.2 25 



Atypical 



Clarendon, Kansas 29.5 5 20.5 17.4 



Clarendon, Kansas 30.3 5.3 24.2 19.5 



9 



Clearwater, Kansas 42.8 7.5 32 25 



Barber County, Kansas 43 7.6 34 26.5 



From these measurements it is evident that while the maximum 

 sized individuals are from the more southern portion of the range 

 of the race, as would be expected from the average larger size of 

 Mer. mac. maculipennis, the smallest specimens are, as might be 

 inferred, from the more northern localities. Unfavorable environ- 

 ment may be responsible for the minimum sized individuals occur- 

 ring in the sand-hill regions of Nebraska and Illinois, and the 

 high plains region of northeastern Colorado, but peripheral de- 

 pauperation may be as responsible for the Illinois cases, as well 

 as the remarkably small size of the Hollister, Missouri; Onawa 

 and Muscatine, Iowa and Lone Rock, Wisconsin, specimens. 



Color Notes. — The color description of the race as a whole, based 

 on all of our typical material, is as follows: 



Base color ranging from dirty cream-buff through ivory yellow 

 and honey yellow to olive-yellow on one hand, and through pinkish 

 buff, cinnamon-buff and vinaceous-cinnamon to clay color on 

 the other hand. This base color is often clearer and purer ventrad 

 of the lateral bars on the sides of the body, slightly or distinctly 

 suffused on the dorsum. The paired lateral bars range in tone 

 from sepia, through bister and bone brown to brownish black. 

 Antennae varying in tone from pale zinc orange and dull och- 

 raceous-buff, to ferruginous and cinnamon-brown, always some- 

 what darkened distad; eyes ranging from hazel and dresden brown 

 to chestnut brown; face rarely infuscate, and then not strongly 

 so, with the adjacent portions of the genae equally or more de- 



