120 R. W. Dawson 



Margin of clypeus narrowly reflexed; elytra with a more or less 

 well marked greenish or purple luster 3 



3. Elytra with a darker stripe near the sides, more pronounced 

 at the extremities; inner spur of hind tibiae of male with sides 

 nearly parallel, and the tip blunt; hind tibiae iesta.ceo\x?>.. suhvittata 



Elytra without a darker stripe; inner spur of hind tibiae of 

 male similar to the outer spur; hind tibiae more or less black- 

 ened at the apex elongata 



Dichelonyx elongata Fabricius. 



1792. Melolontha elongata Fabricius, Entomologia systematica, i, pt. 

 2, p. 170. 



Specimens examined: 6 5 , 11 5, from Omaha, Belle- 

 vue and Lincoln, collected during the month of May. This 

 is a common eastern species the range of which probably 

 does not extend across Nebraska to the westward. 



Dichelonyx subvittata Le Conte. 



1856. Dichelonycha subvittata Le Conte, Journ. Acad. Nat. Sci. 

 Phila, (2), iii, p. 279. 



Specimens examined : 6^,5$, from Rulo, South 

 Bend, Lincoln, and West Point, collected from May 22 to 

 July 2. Subvittata. like the preceding species is of eastern 

 distribution. 



Dichelonyx testacea Kirby. 



1837. Dichelonycha testacea Kirby, Fauna Boreali-Americana, iv, 

 p. 135. Ibid. Can. Ent., iii, p. 213. 



Specimens examined: 16 <? , 12 $, from West Point, 

 "Pine Ridge", Warbonnet and Monroe canyons in Sioux 

 Co., collected from May to July. Testacea ranges in Ne- 

 braska from the north. 



Dichelonyx truncata Le Conte. 



1856. Dichelonycha trKucata Le Conte, Journ. Acad. Nat. Sci. 

 Phila., (2), iii, p. 281. 



Specimens examined: 71 S, 4 9, from Mitchell and 



226 



