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APPENDIX. 



The following list of Ants'-nest Beetles is obligingly supplied 

 by Dr. J. A. Power, who has most diligently collected these in- 

 teresting insects for several years, and has thus been enabled to 

 refer all the species of Beetles to those Ants in whose nests they 

 are exclusively found, or most frequently met with. The arduous 

 investigation of the connexion between the different species of 

 Ants and the Myrmecophilous Coleoptera having for a long 

 time engaged the attention of Dr. Power, renders this list highly 

 valuable. 



Myrmecophilous Beetles found in the nests of Formica rufa. 



Lomechusa strumosa, Fabr. 



Myrmedonia humeralis, Grav. 



Aleochara ruficornis, Grav. 

 (perhaps not truly Myrme- 

 cophilous). 



Thiasophila angulata, Erichs. 



inquilina, Mark. 



Dinarda Maerkellii, Kiesen. 



Oxypoda formiceticola, Mcerk. 



haemorrkoa, Sahib. 



Homalota anceps, Erichs. 



flavipes, Grav. 



Quedius brevis, Erichs. 



Leptacinus formicetorum, 

 Mcerk. 



Xautholinus ochraceus, Gyll. 

 (abundant in some nests, but 

 possibly not Myrmecophi- 

 lous). 



Dendrophilus pygmseus, L. 



Saprinus piceus, Payk. 



Monotoma angusticollis, Gyll. 



cornicicollis, Aube. 



The larvae of Cetonia aenea. 



The larvae of Cetonia aurata. 



The larvae of Clythra 4-punc- 

 tata. 



Formica fusca. 



Hetaerius sesquicornis, Preyssl. 

 Atemeles emarginatus, Payk. 

 Homceusa acuminata, Mcerk. 

 (taken by T. V. Wollaston, 



Esq.). 



Dinarda dentata (taken by J. J. 



Reading, Esq.). 

 Atemeles paradoxus (taken by 



J. J. Reading, Esq.). 



