328 THE MYRMECOPHILOUS COLEOPTERA 



nature are most constant to their true hosts, and it is only singly, and by 

 chance, that a species is found with another kind of ant. 



Homoeusa acuminata, Mark. Formica fusca, Lasius fuliginosus and niger. 



I once took it in a mixed nest of L. niger and flavus. 

 Aleochara ruficornis, Gr. Formica rufa and fusca and Lasius fuliginosus. 



Microglossa fulla, Gyll. Lasius fuliginosus. I once took it with Formica 

 rufa. Though it also occurs in carrion, and Dr. Joy has shown it breeds 

 in birds' nests ; still it is regularly found with L. fuliginosus. 



Microglossa gentilis, Mark. Lasius fuliginosus. Also occurs in birds' nests, 

 but is frequently abundant with this ant. 



Oxypoda vittata, Mark. Lasius fuliginosus. 



Oxypocla formic eticola, Mark. Formica rufa. 



Oxypoda recondita, Kr. Formica rufa. I have also taken it with F. san- 



guine.a. 

 Oxypoda hcemorrhoa, Sahl. Formica rufa. I have also taken it with F, 



sanguinea, F. exsecta, and Lasius fuliginosus. 



ThiasopJiila angulata, Er. Formica rufa. 

 Thiasophila inquilina, Mark. Lasius fuliginosus. 



Ilydbates glabriventris, Rye. Lasius fuliginosus. 



Dinarda miirkeli, Kies. Formica rufa. 



Dinarda dentata, Gr. Formica sanguinea. 



Dinarda hagensi. Wasni. Formica exsecta. 



Dinarda pygmcea, Wasm. Formica fusca, v. fusco-rufibarhis. 



Lomechusa strumosa, F. Formica sanguinea. 



Atemeles emarginatus, Pk. Primarj' hosts : Myrmica scahrinodis, Icevinodis, 



ruginodis and sulcinodis. Sscondary, Formica fusca. 

 Atemeles paradoxus, Gr. Primary hosts : Myrmica scahrinodis, Icevinodis and 



ruginodis. Sscondary — Formica fusca, v. fusco-rufibarhis. 



Myrmedonia haivorthi, Steph. Lasius fuliginosus. 



Myrmedonia collaris, Pk. These two and the following species are not so 



truly myrmecophilous as the other Myrmedonias. It has been taken with 



Myrmica species, and I found it in numbers with its larvae in company with 



Myrmica Icevinodis. 

 Myrmedonia limbata, Pk. Lasius fuliginosus and flavus, and Formica fusca. 



I have also taken it with Formica sanguinea, Lasius niger and 2Iyrmica 



species. 

 Myrmedonia funesta, Gr. Lasius fuliginosus. 



Myrmedonia Juimeralis, Gr. Formica rufa, and Lasius fuliginosus. 

 Myrmedonia cognata, Mark. Lasius fuliginosus. 

 Myrmedonia lugens, Gr. Lasius fuliginosus. 

 Myrmedonia laticollis, Mark. Lasius fuliginosus. 

 Myrmoecia plicata, Er. Tapinoma erratica. 



