WICKHAM: FOSSIL ELATERIDAE OF FLORISSANT. 495 
sant district, the only North American Tertiary Elateridae thus far 
made known are these:— 
Green River, Wyo. Oligocene. 
Corymbites velatus Scudd. 
White River, Colorado-Utah. Oligocene. 
Epiphanis deletus Scudd. 
Fossil, Wyo. Oligocene. 
Adocetus buprestoides Scudd. 
Similkameen River, B. C. Miocene. 
Limonius impunctus Seudd. Elaterites sp. 
Nicola River, B. C. Miocene. 
Cryptohypnus (?) terrestris Seudd. 
These five records (since that of Elaterites cannot be considered as 
having any special value) are even less illuminating than those of 
Europe. Three of the genera are now recognized from Florissant. 
Years ago, Scudder announced that he had about forty species of 
Florissant Elateridae but he never gave them detailed study and it is 
probable that the number was somewhat overestimated. At any 
rate, when I looked through his collections in 1912 I was unable to 
distinguish so many and of those in his cabinet a good proportion was 
too poor for identification. Later explorations have brought in about 
as many specimens as were known to Scudder and by a study of the 
material belonging to the Museum of Comparative Zodlogy, the 
United States National Museum, the Princeton University Geological 
Museum, the Museum of the University of Colorado and the Peabody 
Museum of Yale University, supplemented by a collection of my own, 
I have separated forty-three species with some degree of certainty 
as to their generic and specific affiliations. For convenience in making 
comparisons, this list is appended. Excepting four which I have 
described in earlier papers, all are new and are characterized in the 
body of this article. 
Eueneminae. 
Eucnemis antiquatus. Microrhagus miocenicus. 
Deltometopus fossilis. Microrhagus vuleanicus. 
Fornax relictus. 
