68 THE entomologist's RECORD, 



Ar/i'lcnidac, Ti-trili(s arietiniis, Thor. One of these examples was 

 domiciled in the nest of F. nifa, the other in that oi Lasi us fuliiiinosus. 

 The spider was first described from ants' nests in Sweden, by the late 

 N. Westring, under the name of Hahnia i>ratemis, C. L. Koch .... 

 This is its first record as a British spider." I took these specimens at 

 Oxshott in the nests of the ants mentioned by Mr. Cambridge. 

 Wasmann [loc. cit., p. 194) gives the same two hosts. 



Drassus tronloiJi/teiit, C.K. — I took a very young 5 Drass)(s, prob- 

 ably this species, in the nest of Lasius fuli<iinosns at Oxshott. Was- 

 mann {lite, cit., p. 194) records it from ants' nests. 



P/irHrolithtis featirus, C.K. — 1 have taken this spider in the nests 

 of Foniiica riifa and Lasius fiiliiiijiosiis at Oxshott. Wasmann [lor. cit., 

 p. 184) gives L. nif/ey, L. hnnnicus and L. fiilininosiis as its hosts. 



flarpavtcs hombciiii, Sep. — I continually take this species in all its 

 stages and both sexes, in the nest of J^siiis fiiliijinDsus at Oxshott. 

 Wasmann {Inc. cit., p. 195) records it as being found with the same 

 ant. 



( 'n/phdcca dirisa, C'duihnd'^e. — I took a J of this very rare spider 

 in the nest of Lasius ftdii/inosKs at Oxshott. Mr. Cambridge tells me 

 that only one other example, a ? , is known. 



Micaria sriutillus, Cambridge. — Cambridge {Spiders af 1 husct, p. 

 13) writes : " The grassy slopes where this spider occurs (at Portland) 

 are also numerously frequented by a large blackish ant, to which the 

 spider bears so close a resemblance that, even after much practice, it 

 requires a close examination to distinguish (before capture) between the 

 ant and the spider, both have also a similar habit of running hurriedly 

 now and then up a grass stem, as if to get a larger range of view — or 

 it may be that both are in search of the same prey; both again, on the 

 first inkling of danger, betake themselves to the shelter of the tangled 

 grass, and to the stems and roots of other low herbage." I would 

 suggest that this is a case in Avhich the ant is mimicked by the spider, 

 the mimicry being largely dependent on the similarity of the movements 

 of the two creatures (active mimicry). 



Micaria pidicaria, Saund. — I took several specimens of this spider 

 in the nest of Lasins ni'icr at Mickleham. It is also very like the ants 

 Avith which it occurred. The spiders were rapidly running about in 

 the nest and the " runs " of the ants, and were very difficult to dis- 

 tinguish from them. 



Micruncta innotabilis, Camb. — I have taken this species with both 

 Lasiusfidii/inosKs and Furmica rii/a at Oxshott. 



Microncta riaria, Bl. — I have taken this spider many times in the 

 nest of J.asiHs /tilii/intisiis at Oxshott, and also with F. rufa in the 

 same locality. 



AcAKiNA. — (Jli/j}/i(i/isis c(jcciiu'a, Mich. — Michael (" Notes on the 

 Uropudinac," Jmir. J!. Micro. Sac, 1894, p. 810) records the capture 

 of several specimens by Bostock at Buxton, in the nest of Furiiiica 

 fiisca, as well as by himself and Bostock with the same ant at the 

 Land's End, Cornwall. 



Glijphojisis lamcUosa, Canestrini. — Michael (Zor. cit., p. 304) records 

 taking a considerable number of this species in the autumn of 1892, 

 in a nest of Forniica fnsca near the Land's End. 



(jli/jdivpsis bostuchi, Mich. — Michael (Zoc. cit., p. 303) mentions that 

 Bostock took a pair, S and ? , in the nest of Lasius jiavns near 

 the Land's End. 



