194 ENTOMOLOGICAL SOCIETY 
From the multitude of introduced species the cosmopolitan 
Coleoptera can be isolated as a tolerably well circumscribed group. 
Owing to the increased facility for obtaining and comparing speci- 
mens of the various faunal regions our knowledge of these cosmo- 
politan species has in recent years been greatly advanced. Among 
them the coprophagous Staphylinidce, various families of Clavi- 
corn beetles (notably Cucujidce, Cryptophagidcc, and Lathri- 
diidce), and the Ptinidce predominate over all others. The Car- 
abidce are represented by two species, and the large phytophagous 
families, viz., the phytophagous Scarabceida^ Buprestidcc, 
Elateridce (if these may be called phytophagous Coleoptera), 
Cerainbycidce, and Chrysomelidce are absent, onlv the Briichidce 
and Rhynchophora being represented by a few species. The 
Palasarctic fauna furnished, no doubt, a large proportion of the 
cosmopolitan species. Other species maybe assigned, with more 
or less probability, to the faunal regions, while the origin of some 
remains uncertain. 
The remaining portion of the introduced species I have in vain 
attempted to arrange in various groups. I tried to arrange them 
according to the probable method of introduction e.g., with do- 
mestic animals, with hay, straw, layers or cuttings of living plants, 
and other articles of commerce, etc. ; but here I had to make so 
many divisions and subdivisions and so many species remained 
unprovided for that I had to abandon my scheme. I also at- 
tempted to arrange them according to the probable place of im- 
portation from which they had spread over a larger or smaller 
area ; but while quite a number of species can clearly be assigned 
to certain ports, it was found that in many species, and more es- 
pecially those which are now widely distributed, the original place 
of importation could no longer be ascertained.* 
* POSTSCRIPT. It had been the intention of the writer to append classi- 
fied lists of the species common to North America and other countries ; but 
the plan has been abandoned in view of the fact that since the reading of 
this address two such lists have appeared in print, to which the reader is 
now referred, and ,more especially to Mr. Fauvel's list, which is the later 
and more complete of the two. I cannot refrain, however, from transcrib- 
