188 Journal New York Entomological Society. [Voi xviii. 



83. Gyrinus picipes Aube. 



Red Bay, West St. Modest, Cape Charles, Hopedale. Blanch- 

 ard writes: "It seems as though your Labrador Gyrinus ought to 

 be picipes. of which Le Conte remarked he had three from Labrador 

 * one of which does not seem to differ from Alaska types sent by 

 Chaudoir.' Description of opacits Sahib, however fits much better. 

 Le Conte had Greenland examples of opacns." 



Gyrinus picipes occurs from Alaska to Labrador. 



84. Helophorus lineatus Say. 



85. Helophorus inquinatus Mannh. 



Ungava Bay (Turner: Schwarz list). Mr. Schwarz states that 

 these are not to be considered definite determinations, as the genus 

 requires thorough investigation. Both of the above species are on 

 the Bowditch list of Mt. Washington, N. H., species. H. inquinatus 

 Mannh. is recorded from Alaska and Lake Superior. 



86. Philhydrus bifidus Lee. 



Caribou Island (Packard) ; Lake Superior, New England States. 



87. Hydrobius fuscipes Linn. 



Ungava (Turner: Schwarz list) ; West St. Modest, not rare. Mt. 

 Washington, N. H., summit (Bowditch). Hamilton says: "Very 

 variable and widely distributed in temperate and boreal America ; 

 general in Europe ; Kamtschatka, east and west Siberia, Turkestan."' 



88. Silpha lapponica Linn. 



Caribou Island to Hopedale (Packard); Ungava Bay (Turner: 

 Schwarz list) ; West St. Modest, Red Bay, Nachvak; interior of Lab- 

 rador (Fletcher list). Schwarz says: "Occurs all over North 

 America except in the southeast, being still common as far south as 

 San Diego, Cal. In Europe it is strictly arctic and does not occur 

 even in the alpine regions." Fall mentions its occurrence at Cape 

 Blossom, Alaska, within the Arctic circle. 



89. Choleva luridipennis Mannh. 



West St. Modest, a few. Described from Alaska ; occurs east- 

 ward to New England States. 



90. Agathidium obsoletum Lee. 



Square Island (Packard). No such name appears in Henshaw's 



