312 



BRITISH ANTS. 



and seven larvae present June 1st all larvae in cocoons June 8th 

 the rufibarbis queen with a small packet of eggs in her jaws, only 

 five cocoons and one empty case, but no worker, present June 21st 

 only four cocoons and a bunch of eggs present, the empty cocoons 

 being buried in a small hole dug in the earth and filled up again 

 July 1st three small fusca callows hatched July 4th a fourth 

 callow present, four small larvae and three larger ones July 10th 

 four of the larvae in cocoons, only one other larva present July 

 15th the rufibarbis female had her head bitten off. This would seem 

 to show that fusca and rufibarbis females will not found colonies 

 together, and in this instance the latter 's brood was not allowed to 

 develop. 



The under-mentioned species of myrmecophiles have been taken 

 with Formica fusca in Britain : 



Coleoptera : Homoeusa acuminata Mark., Aleochara ruficornis 

 Gr., Atemeles emarginatus Pk., Myrmedonia limbata Pk., Drusilla 

 canaliculata F., Lamprinus saginatus Gr., Neuraphes carinatus 

 Muls., Batrisodes venustus Reich., Trichonyx miirkeli Aub., and 

 Hetaerius ferrugineus 01. 



Formicidae : Ponera coarctata Latr., Myrmecina graminicola 

 Latr., Stenamma westwoodi West., and Leptothorax acervorum F. 



Braconidae : Spilomma falconivibrans Morley, and Chasmodon 

 apterum Nees. 



Proctotrupidae : Antaeon brevifilis K., Gonatopus striatus K., 

 Lagy nodes pallidus Boh., Plesiobaeus hospes K., Synopeas sp. ?, 

 Trichopria formicaria K., and Embolemus ruddi West. 



Cynipidae : Rhoptromeris formicaria K. 



Diptera : Microdon mutabilis L. (larvae and pupae), Platyphora 

 lubbocki Verrall, Aenigmatias blattoides Mein. var. highlandica Schm., 

 and Limosina rufilabris Stnh. 



Heteroptera : Alydus calcaratus L., Nabis lativentris Boh., 

 Pilophorus per plexus D. and S., Systellonotus triguttatus L., and 

 Ceratocombus coleopteratus Zett. 



Aphidae : Trama radicis Kalt., For da formicaria Heyd., Pentaphis 

 marginata Koch., Lachnus nudus Retz., Brysocrypta ranunculi Kalt., 

 Tetraneura uhlmi Geoff., and Schizoneura corni F. 



Coccidae : Riper sia tomlini Newst., R. europaea Newst., and 

 Newsteadia floccosa West. 



Collembola : Cyphodeirus ( = Beckia) albinos Nic., and Smyn- 

 thurus caecus Tull. 



Myriapoda : Polyxenus lagurus L. 



Araneina : Thyreosthenius biovata Camb., Evansia merens Camb., 

 Cryphoeca recisa Camb., Phrurolithus minimus O.K., Harpactes 

 hombergi Sep., Micaria scintillus Camb., and M. pulicaria Sund. 



Acarina : Discopoma pulcherrima Berl., Uroobovella notabilis 

 Berl., Trachyuropoda coccinea Mich., T. coccinea var. sinuata Berl., 

 T '. laminosa C. and B., Laelaps myrmecophilus Berl., L. myrmopJiylus 



