PROCEEDINQS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. II, pp. 523-537. December 20, 1900. 



PAPERS FROM THE HARRIMAN ALASKA 

 EXPEDITION. 



XVIII. 



ENTOMOLOGICAL RESULTS (12) : 



COLEOPTERA. 



By E. a. Schwarz. 



The Coleopterous fauna of Alaska is much better known than 

 that of any of the other orders of insects of that territory, at least 

 so far as the region along the southern and southeastern coasts 

 is concerned, and Count C. G. von Mannerheim, in his often 

 quoted series of papers,^ enumerates and describes (in conjunc- 

 tion with Professor F. W. M^klin) not less than 540 species. 

 Subsequently to these early investigations by Russian explorers 

 only a few additional species have been discovered in these 

 regions. In 1894 the late Dr. John Hamilton^ published a sys- 

 tematically arranged catalogue of the Coleoptera from Alaska 

 which brings the total number of species to about 580. This in- 

 cludes, however, a small number of imperfectly known or not yet 

 identified species described by the earlier authors. Owing to the 

 large number of species already known from southern Alaska, 

 and also to the difficulty in thoroughly exploring the Coleopterous 



iBeitrag zur Ksefer-fauna der Aleutischen Inseln, der Insel Sitka und Neu- 

 Californiens. Bull. Soc. Imp. Nat. Moscow, vol. 16, 1843. Nachtrsege zur 

 Kffiferfauna d. Aleut. Inseln und d. Insel Sitka, i-iii, 1. c. vol. 19, 1846, vol. 25, 

 1852 ; and vol. 26, 1853. 



2 Catalogue of the Coleoptera of Alaska, with the synonymy and distribution. 

 Trans. Amer. Entom. Soc, vol. 21, 1894, pp. 1-38. 



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