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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. Leptacinus formicetorum, 



Myrmedonia humeralis, Grav. Mark. 



Aleochara ruficornis, Grav. Xantholinus ochraceus, Gyll. 

 (perhaps not truly Myrrne- (abundant in some nests, but 

 cophilous). possibly not Myrmecophi- 



Thiasophila angulata, Erichs. lous). 



inquilina, Mark. Dendrophilus pygmseus, L. 



Dinarda Maerkellii, Kiesen. Saprinus piceus, Payk. 



Oxypoda formiceticola, Mark. Monotoma angusticollis, Gyll. 



haemorrhoa, Sahib. cornicicollis, Aube. 



Homalota anceps, Erichs. The larvae of Cetonia aenea. 



flavipes, Grav. The larvae of Cetonia aurata. 



Quedius brevis, Erichs. The larvae of Clythra 4-punc- 



tata. 



FORMICA FUSCA. 



Hetaerius sesquicornis, Preyssl. Dinarda dentata (taken by J. J. 



Atemeles emarginatus, Payk. Reading, Esq.). 



Homoeusa acuminata, Mark. Atemeles paradoxus (taken by 



(taken by T. V. Wollaston, J. J. Reading, Esq.). 



Esq.). 



