126 R. W. Dawson 



1905. Wickham: "The North American Species of Cotalpa", 

 Journ. N. Y. Ent. Soc, xiii, pp. 1-4. (Table to 7 species), 



1915. Casey: Memoirs on the Coleoptera, vi, pp. 88-98. (Descrip- 

 tive table for 18 forms). 



SYNOPSIS OP THE SPECIES 



1. Head smaller, width including the eyes about 4 mm.; punctures 

 of elytra coarser and more closely placed, showing a strong 

 tendency to be connected by shallow grooves or wrinkles, 

 especially at the inner basal portion; scutellum more narrowly 



triangular suhcribrata 



Head larger, width including the eyes about 5 mm.; punctures 

 of elytra distinctly smaller, and more sparsely placed, and not 

 irregularly connected by shallow wrinkles; scutellum more 

 broadly triangular lanigera 



Cotalpa subcribrata Wickham. 



1905. Cotalpa subcribrata Wickham, Journ. N. Y. Ent. Soc, xiii, 

 pp. 2-3. 



Specimens examined: 37, from Omaha, Brady Island, 

 Cherry Co., Halsey and Oshkosh, collected from May 19 to 

 June 7. Subscribrata was described from Mendora, Kansas, 

 and is apparently common in our Sand Hills region. 



Cotalpa lanigera Linnaeus. 



1758. Scarabaeus lanigera Linnaeus, Systema Naturae, ed. x, p. 350. 



Specimens examined: 14, from Meadow, Nebraska 

 City, South Bend, Fremont, West Point, Richland, Neligh, 

 and Grand Island, collected from May 22 to July 3. 



Dynastini 

 Claws of the tarsi, except the front ones of many males, 

 equal; front coxae transverse and not prominent; labrum 

 usually hidden under the clypeus; head and pronotum often 

 more or less armed. 



Cyclocephala Latreille 

 1829. Latreille: Cuvier's Regne animal, ed. 2. 

 1863. Le Conte: "New Species of North American Coleoptera", 



Smithsonian Miscellaneous Collections, pt. i, pp. 79-80. 



(Table and descriptive notes for 7 species). 



232 



