1920] Lutz and Cockerell, Notes on American Beet 607 



(?) B. borealis Cresson, 1876, p. 210. Eknpire, Colorado. 



Cockerell, 1910(/, p. 128. New Castle, Colorado; atCarduus; (Robbins). 



Tucker, 1909, p. 277. Buffalo, Colorado; VIII. 



Franklin, 1913, p. 285. "Appears to be confined to the mountain ranges 

 and higher lands of the western United States and to the southwestern portion 

 of Canada (probably the lower lands)." Washington. Chino, southern 

 California. Western Montana. Wyoming. 



Cockerell, 19156, p. 483. Corona, Colorado; above timber line; at 

 Trifolium dasycarpum; (Kenoyer). 



Sladen, 1919, p. 126. Connects borecUis with the Eurasian dislinguendus. 



Sec borealis. 



[K.] arcticus Kirby, 1821, p. 216. 9, cT. Boothia Felix, Arctic 

 America. (See Meade- Waldo, 1916, p. 469.) 



For various probable but uncertain references in synonomy see Franklin, 

 1913, p. 302, and DaUa Torre, 1896, pp. 511, 524. 



B. grcenlandicus (Westermann) Smith, 1854, p. 393, 9 . Greenland. 



(?) B. hyperboreus Schmiedeknecht, 1882, p. 308. Arctic regions of Europe 

 and Siberia. 



B. hyperboreus Fox, 1892, p. 135. Disco Island, lat. 69 10', West Green- 

 land; VI, VIII; (Mengeland Hughes). 



Bremus hyperboreus Frison, 1919, p. 456. 76" 30' N. to 78 20' N. ; Crocker 

 Land Expedition. Believes that arcticus = hyperboreus Schonherr, 1809, p. 57. 



Sladen, 1919a, p. 28g. cf, 9 . Bernard Harbour, Northwest Terri- 

 tories and Herschel Island, Yukon Territory; (Johansen). CoUinson 

 Point (Johansen), Barter Island (Jenness), Alaska; '"Cape Ross, Melville 



Island, Northwest Territories, by Emiu (Eskimo),' (V. Stefansson) 



Bombiis arcticus is probably the B. hyperboreus of European authors, found in 

 Greenland and Arctic Eurasia." 



asptoni. See Psithyrus ashtoni. 

 astragali. See rufocinctus. 

 atrifasciatus. See kirbyellus. 

 aztecus. See fervidus dorsalis. 



[A.] auricomus Robertson, 1903, pp. 176, 177. (Bombias) 9, 8, cf 

 Carlinville, Illinois. 



B. pennsylvanicus Cresson, 1863, p. 94. 9 (part), 8 (part), cT. 

 B. nevadensis Handlirsch, 1888, p. 245. cT . 

 B. pennsylvanicus Robertson, 1890, p. 40. 



B. pennsylvanicus Robertson, 1891a, pp. 571, 573, 574, 580, 589, 591. At 

 Asdepias incamata, cornuti, and suUivanlii, Mertensia virginica, Collinsia 

 vema, and Pentstemon laevigatus digitalis. 



B. pennsylvanicus Robertson, 1894, pp. 438-475. Macoupin County, 

 Illinois; at Rubus villosus, Pyrus coronaria, Cratagus crusgalli, Vemonia 

 fasciculata (printed Jioveboracensis but changed by the author in copies sent 

 out), Eupatorium purpureum, Helianthns grosseserratus, and Cnicus altiMimus, 

 aUissimus discolor, and lanceolatus. 



B. pennsylvanicus Robertson, 1895a, p. 143. At Phlox pilosa. 



