TETRAMOR1UM. 177 



present September 9th several callows hatched September 25th 

 many callows now present March 2nd, 1912, very few deaths 

 have taken place, a small packet of eggs present ; fed with raw 

 meat, bits of which were placed by the workers on the larvae 

 March 29th fed with F. rufa larvae and pupae March 31st very 

 young larvae, which are whiter than the older ones, have hatched 

 June 1st callows again present June 23rd fresh eggs laid 

 July 19th many of the larvae are hung on to the plaster walls of 

 the nest (by their anchor-tipped hairs) July 24th and 25th 

 experiments with Anergates females (previously recorded under 

 Anergates atratulus) September 15th all well, callows and larvae 

 present January 31st, 1913, numerous larvae hanging on the 

 walls, have not increased in size during the winter June 1st pupae 

 present June 17th introduced a number of Paracletus cimiciformis 

 taken in T. caespitum nests on Lundy (these did not live longer 

 than a month) June 24th introduced some large dark T. caespitum 

 workers, with larvae and pupae (from a colony found in the New 

 Forest on June 23rd), a little fighting took place June 25th all 

 well, no dead ants, the strange larvae and pupae have been collected 

 with the old ones, and the strange workers are mixed with the 

 smaller old ones and no further fighting takes place July 10th a 

 few small callows present, a worker observed to milk a Paracletus, 

 she stroked the hind body of the " Plant-louse " with her antennae 

 and then sucked the anus September 1st a number of medium - 

 sized and small larvae present February 1st, 1914, only a few 

 dead ants present, medium and small larvae, the female and large 

 and small workers all well. 



The nest is still under observation. 



The following myrmecophiles have been found with this ant 

 in Britain : 



Coleoptera : Drusilla canaliculata F. ; and Staphylinus sterco- 

 rarius 01. 



Formicidae : Anergates atratulus Schenck. 



Proctotrupidae : Tetramopria donistkorpei Kieffer ; T. donis- 

 thorpei var. femoralis Kieffer ; Loxotropa tritoma Thos. ; and 

 Gonatopus sociabilis Kieffer. 



Aphidae : Paracletus cimiciformis Heyd. ; Trama donisthorpei 

 Theob. ; For da formicaria Heyd. ; Pentaphis marginata Koch. ; 

 P. trivialis Pass. ; and Tetraneura ulmi Geoff. 



Coccidae : Riper sia subterranea Newst. 



Collembola : Cyphodeirus ( = Beckia) albinos Nic. 



Araneina : Acartauchenius scurrilis Cbr. ; and Micaria pulicaria 

 Sund. 



Acarina : Trachyuropoda laminosa C. and B. ; Laelaps equitans 

 Mich. ; L. laevis Mich. ; L. myrmophilus Mich. 



Crustacea : Platyarthrus hoffmanseggi Brandt. 



