The Insect Fauna of Van Dieme7i's Land. 307 



Unless where its introduction can be traced to human 

 influence. This assertion is not contradicted by the ap- 

 pearance of Calosoma^ Harpahis, Pterostichus, CypJion, Lim- 

 niclms, Cercyon, Ontlwplmgus, Aphodius, Tenehrio, Mordella, 

 Anthicus, Bro7ites, Graptodera,Pkalacrus, Scymnus, Corylo^Jms, 

 and Batrisus, for these genera are spread over the whole 

 world 'y but the appearance of Attains, Saljnngus, GrypJialuSy 

 DendropJiagus, Psyllioides, ^'c, is remarkable^ for they are 

 more peculiar to the European Fauna. 



Geographical peculiarities are most distinctly exhibited in 

 the order of the Coleqpter^e ; one-third of their genera 

 appears both in Europe and New Holland ; one-fifth is 

 distributed in other parts of the world_, so that less than one- 

 half is restricted to New Holland ; certainly a favourable 

 example of the peculiarity of this Fauna. It is not so 

 in other orders : about two-thirds of their genera are 

 common to both Europe and New Holland ; one-sixth is 

 excluded from the European Fauna^ but found in other parts 

 of the world; and only one-sixth is peculiar to New Holland. 

 The Blptera and Hymenoptera show a greater degree of 

 peculiarity than the Hemiptera, the Orthojptera show least. 

 The Lepidoptera are not included in my summary^ none 

 having been forwarded by Mr. Schayer^ but I believe their 

 relations similar to those of the last-mentioned. The affinity 

 of the Fauna of Van Diemen's Land to that of New Holland 

 is the same as Robert Brown has assigned to the Floras 

 of the two countries^ viz. — that those forms which are 

 peculiar to this part of the world_, and characteristic of it, are 

 common to both countries. I am not sure that the genera 

 Carenum, Pamhorus, Byssonottis, Tragocerus, 8fc., appear in 

 Van Diemen^s Land : no doubt we are still unacquainted with 

 manymodifications of the character of theFauna caused by the 

 appearance and disappearance of genera^ which are confined 



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