1926] European Subgenus Actedium in North America 
35 
in the gulf of St. Lawrence region and in Alaska, though it had 
not been recorded from Siberia up to 1896 (5). 
The following papers have been referred to, by number, in 
the preceding pages: 
1. Casey, T. L. — Bembidiinse; Memoirs on Coleoptera, VIII, 
Lancaster, 1918, p. 46-85, for Peryphus. 
2. Champion, G. C. — List of Coleoptera common to Britain 
and North America; Ent. Month. Mag., ser. 2, VI, 
1895, p. 150-155. 
3. Hamilton, John — Catalogue of Coleoptera common to North 
America and northern Europe and Asia; Trans. 
American Ent. Soc., XXI, 1894, p. 345-416. 
4. Hayward, Roland — On the species of Bembidion of America 
north of Mexico; Trans. American Ent. Soc. XXIV, 
1897, p. 32-143. 
5. Hey den, Lucus von — Catalog der Coleopteren von 
Siberien; Deutche Ent. Zeits. (special no.), 1881; 
N'achtrag I, 1893; Nachtrag II, 1896. 
6. Hey den, Lucus von — Reise nach Spanien; Berlin, 1870, p. 
63. 
7. Jacquelin-Duval. Camille — De Bembidiis Europaeis; Ann. 
soc. ent. France, ser. 2, IX, 1851, p. 441-576; 1852, 
p. 101-236. 
8. Motschulsky, T. Victor von — Enumeration des nouvelles 
especes, IV; Bull. Moscou XXXVII, 3, 1864, p. 
181 (Princidium ) ; p. 182 {Actedium). 
