156 



the confusion has originated in consequence of 

 Entomologists attending too rigidly to the tarsal 

 system : a better classification can only be satisfac- 

 torily attempted when the larvse of the different 

 genera are more accurately known. 



AnisotomidyE, Stephens. 



Genera. 



Count?*i/. 



Typical Species. 



1. 



Tritoma, Fabricius 



Europe 



T. Bipustulatum, Fabricius. 



2. 



Alexia, Stephens 



England 



T. Pilifera, Mull. 



3. 



Fhalacrus, Paykull 



Sweden 



Ph. Coruscus, Paykull. 



4 

 5. 



Epliisternus, Westwood. 

 \ Anisotoma, Fabricius 

 X Leiodes, Latreille 



England 

 Denmark 



Der. Gyrinoides, Marsham. 

 Anis. ferruginea, Fab. 









G. 



{ Agathidium, Illiger 

 X Volvoxis, Kugellan 

 c Clambus, Fischer 

 X Ptilium, Schuppell 



England 



Silpha seminulum, Linn. 



7. 



Sweden 



Der. Armadillo, De Geer. 









8. 

 9. 



{ Corylophus, Leach 

 X Clypeastev, Anderson 

 Oi'thoperus, Stephens 



( England 

 England 



Der. Cassidoides, Marsh. 

 Der. Punctum, Marsh. 



10. 



Serieoderus, Stejihens 



England 



Scap. dubium, Marsh. 



Anisotoma, Fabricius. 



Sp. 1 . Ferruginea.— I retain the Fabrician name 

 of Anisotoma in the place of Leiodes ; and instead 

 of changing the family name to Agathidiidse, as 

 Mr. Westwood has done, I prefer that of Anisoto- 

 midee. True Anisotoma seems attached to northern 

 regions ; it occurs in the New as well as in the 



