ENTOMOLOGY OF COLORADO. 325 



HYDROPHILID^. 



56. Laccobius agilis Randall. E. to Iowa (Wickham) and New Jersey. 



57. Philhydrus diffusus Lei-. West Cliff. 



58. Hydrobius subcupreus Say. West Cliff. 



These three species all extend East to New Jersey. Three species found 

 by Mr. Wickham at Canon City are all of genera different from ours. 

 viz., Limnocharis picens, Cymhiodyia morata and Ochthebius interruptus. 

 It is significant that two of these genera, and all of the species, are 

 absent from the New Jersey list. 



SILPHID^. 



59. Necrophorus marginatus Fab. N. to Canada. 



60. " g-uttula Mots. (=/ieca<e Bland). E. to New Jersey (Smith). 



61. Silpha lapponica Herbst. Down to Denver (Wheeler Report). 



62. " ramosa Say. Also plains S. of Denver (Wheeler Report). E. New 



Mexico (LeConte). 

 S. lapponica is boreal in all three northern continents. 



PSELAPHID^. 

 I did not meet with any. In the sub-alpine, Mr. Wickham found a new Bryaxis 

 (B. wickhamii Brendel MS.) at Canon City. 



STAPHYLINID^. 



63. Falagria dissecta Erichs. E. to New Jersey (Smith). 



64. Aleochara biraaculata Grav., Willow Cieek, Cusack Ranch. E. to New 



Jersey (Smith). 



65. Heterothrops fumigatus Lee. West Cliff. E. to New Jersey (Smith). 



66. Quedius prostans Horn. 



67. Creophilus villosus Grav. This species goes North to Alaska (Wickham) 



and Newfoundland (Gosse), and was found by Gosse in Jamaica! 



68. Philonthus sereus Rossi. 



69 " furvus Nord. Also at Salida (Wickham) and Red Cliff (id.). 



70. " puberulus Horn. West Cliff. 



71. " ferreipennis Horn? West Cliff. [At Canon City Mr. Wick- 



ham found P. virilis, P. microphthalmus and P. semiruber.] 



72. Xantholinus emmesus Grav. E. to New Jersey (Smith). 



73. " obscurus Er. E. to New Jerse.v (Smith). 



74. Stenus colon Say? S. coton occurs in Iowa (Wickham). [At Canon City 



Mr. Wickham found S. incuUus and >S. dives.] 



75. Psederus littorarius Grav., Ula, July 30, and common generally; West 



Cliff, April 5. N. to Canada. [At Canon City Mr. Wickham found 

 P. compotens. 



76. Tachyporus chrysomelinus L. Also at Red Cliff (Wickham). [T. joco- 



sus is sub-alpine.] 



77. Platystethus americanus Erichs. West Cliff. Also bigh-alpiue, and N. 



to Glenora. B. C. (Wickham). 



78. Oxytelus pennsylvanicus Erichs. West Cliff. N. to Canada. 



79. " nitidulus Grav. Extends to Canada (Kilman) and is no doubt 



circumpolar. 



80. Lomechusa cava Lee. 



TRANS. AM. ENT. SOC. XX. NOVEMBER, 1893. 



