Scarabaeidae of Nebraska 125 



Strigoderma arboricola Fabricius. 



1801. Melolontha arboricola Fabricius, Systema Eleutheratorum, 

 ii, p. 174. 



Specimens examined : 50 from South Bend, Louisville, 

 Meadow, Cedar Bluffs, West Point, Neligh, Keya Paha Co., 

 Brown Co., Cherry Co., Halsey, Dismal River, Haigler and 

 Imperial, collected from June 16 to July 6. There is an in- 

 constant tendency for the fourth and eighth elytral ridges 

 to become stronger than the others. 



Pelidnota Mac Leay 



1819. Mac Leay: HOrae Entomologicae, p, 157. 

 1915. Casey: Memoirs on the Coleoptera, vi, pp. 68-76. (Descrip- 

 tive table to 16 forms). 



Pelidnota punctata Linnaeus. 



1758. Scarabaeus punctatus Linnaeus, Systema Naturae, ed. x, 



p. 350. 

 1910. Pelidnota punctata Blatchley, Coleoptera of Indiana, p. 986. 



Specimens examined : 20 5 , 24 $ , from Rulo, Nebras- 

 ka City, Omaha, and Lincoln, collected from June 16 to 

 August 24, on grape vines, Virginia creeper and at lights. 

 In the series at hand the length varies from 18 to 24 mm., 

 the color from pale yellow to reddish brown, and the three 

 elytral, black spots from small or partially obsolete to very 

 heavy. 



Cotalpa Burmeister 



1844. Burmeister: Handbuch der Entomologie, iv, pt. i, p. 423. 



1867. Horn: "Descriptions of New Genera and Species of Western 

 Scarabaeidae, with Notes on Others Already Known", Trans. 

 Amer. Ent. Soc, i, pp. 163-170. (Table to 4 species). 



1871. Horn: "Descriptions of new Coleoptera of the United 

 States, with Notes on Known Species", Trans. Amer. Ent. 

 . Soc, iii, pp. 325-344. (Table to 5 species). 



231 



