FOSSIL COLEOPTERA FROM FLORISSANT IN THE UNITED 

 STATES NATIONAL MUSEUM. 



By H. F. WiCKHAM, 



Professor of Entomology in the State University of Iowa, Iowa City. 



INTRODUCTION. 



In furtherance of a plan for completing the study of all the 

 accessible fossil Coleoptera from the Miocene shales of Florissant, 

 I have been ifitrusted with the unworked material in this group 

 contained in the collections of the United States National Museum. 

 Several interesting novelties have been met with in examination 

 of the specimens, the most remarkable of which is the beautifully 

 preserved example of Miostenosis lacordairei, apparently most closely 

 related to a tribe of Tenebrionidse not now occurring in North 

 America. The present report does not exhaust the material, but 

 contains descriptions and figures of most of the species of immediate 

 importance, the balance of the collection, consisting principally of 

 more obscure insects, can be handled better in a comparative study 

 with others now in hand from different sources. 



SYSTEMATIC LIST OF SPECIES STUDIED. 



Carabid^. 



Pterostichus walcotti Scudder. 

 Amara veterata Scudder. 

 powellii Scudder. 



Dytiscid^e. 

 Agahus florissantensis, new species. 



SlLPHID^ . 



Anisotoma sibylla, new species. 



Staphylinid^. 

 Aleocharopsis caseyi, new species. 



secunda, new species. 

 Quedius chamherlini Scudder. 

 Staphylinus vulcan, new species. 

 Philonthus marcidulus Scudder. 

 Stenus morsei Scudder. 

 Miolithocharis lithographica, new species 



Proceedings U. S. National 



CUCUJID^. 



Lithocoryne arcuata, new species. 



Cryptophagid^ . 

 Cryptophagus bassleri, new species, 



Temnochilid^. 



Tenebroides corrugata, new species. 



Byrrhid^e. 



Nosotetocus debilis Scudder. 

 Amphicyrta inhxsa Scudder. 

 Byrrhus romingeri Scudder. 



BUPRESTID^. 



Anthaxia exhumata, new species. 



Museum Vol. 45— No. 1982. 



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