FOREWORD 



The following work is sin attempt to give a systematically arranged 

 presentation and sufficiently detailed description of the IfeLnish genera and 

 species of the beetle family Staphylinidae , our so-called Rove-Beetles. 

 This work is designed to serve as a manual whereby accurately, and as easy 

 as the subject permits, to determine all the rove-beetles to group, genus 

 and species, which heretofore are found or reasonably may be expected to 

 be found within the scope of our fauna. Inasmuch as collections from vari- 

 ous parts of the country, especially during the last 50 years, have provi- 

 ded very good material with survey of the extensiveness of the family, and 

 the numerousness of species in this country, and since records, from vari- 

 ous hands, of species found, until very recent years, describing habitat, 

 mode of living etc. are now available (see Literature p. 655), it has been 

 nade possible to prepare such a work. It should seemingly also be well re- 

 ceived, as no former extensive work dealing with Denmark's rove-beetles is 

 found in our faunistic literature. Vith the exception of a few shorter trea- 

 ties and scattered articles in periodicals (see li-fcerature index), ,je have 

 heretofore in treating of our Ptaphylinidae fauna by necessity exclusively 

 resorted to the works dealing with Middle and North f^ropean Staphylinids, 

 which are available in German, French, Swedish and English, among the au- 

 thors which especially must be mentioned are Srichson, Kraatz, r^anglbauer, 



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