48 CHAPTER I 



PTEROSTICHIUS STRENUUS Panz. 



Brit. Isl., Eur., Cauc, Sib. E to Amur, f Nfld. 



PTEROSTiCHUS VERMICULOSUS Men. (tnnuitorum Bwn.) 



NE Russ. (Petchora), Sib. E at least N. W. Terr, 



to R. Lena. 



SOMOTRICHUS ELEVATUS F. 



Cosmopolitan, 

 t W Eur. t Wash. 



STOMis PUMicATus Panz. 



Brit. Isl., Eur. E to Ural, Cauc, Asia f Queb. 

 Minor. 



TACHYS PARVULUS Dej. 



S Engl., C & S Eur. f Wash. 



TACHYTA NANA Gyll. 



/. typ. sbsp. inornata Say 



Eur. {not Brit. Isl.), N Afr., Hither Wash.-New York, S to Flor. 



Asia, Sib. E to Amur. 



TRECHUS DISCUS F. 



Brit. Isl., Eur., Asia E to Japan. f E Can. 



TRECHUS OBTUSUS Er. 



Icel., Brit. Isl., W, C & S Eur., N Afr. f Oreg., Wash. 



TRECHUS RUBENS F. 



Icel., Brit. Isl., N, W & C Eur., Sib. f E Can., Nfld. 

 E to Lena R. 



TRICHOCELLUS COGNATUS Gyll. 



Icel., Brit. Isl., N, W & C Eur., Sib. Alas.-Labr., Nfld., Greenl. 



E at least to Lena R. 



Elateridae — Click-Beetles 



Dr. E. C. Becker, Department of Agriculture, Ottawa, kindly gave information 

 on this family as a supplement to the records in Leng's Catalogue. For Asia, 

 besides Heyden (1880-98), Jacobson (1905-15) has been used. 



