1985] 
Porter — Masoneus in harvester ant colonies 
149 
Table 1 . Symbiotic spiders and their ant hosts. 
Spider 
Ant Host 
Source 
Gnaphosidae 
Eilica 
Camponotus 
Noonan 1982 
Clubionidae 
Phrurolithus 
Crematogaster 
Emerton 1911 
Salticidae 
Cotinusa 
Tapinoma 
Shepard and Gibson 1972 
Agelenidae 
Tetri/us 
Formica 
Donisthorpe 1927 
Linyphiidae 
Masoneus 
Cochlembolus 
Evansia 
Thyreosthenius 
Acartauchenius 
Pogonomyrmex 
Formica 
Formica 
Formica 
Tetramorium 
Porter 
Dondale and Redner 1972 
Donisthorpe 1927 
Acknowledgements 
1 thank A. F. Millidge and W. J. Gertsch for identifying the 
spiders. Voucher specimens have been deposited with H. W. Levi at 
the Museum of Comparative Zoology at Harvard University. R. J. 
Snider kindly identified the springtails and P. Hunter identified the 
mites. 
Literature Cited 
Bristowk, W. S. 
1939. The comity of spiders. Ray Society (London) No. 126, 228 pp. 
Dondalk, C. D. and Redner, J. H. 
1972. A synonym proposed in Periniones, a synonym rejected in Walckenaera, 
and a new species described in Cochlembolus (Araneida: Erigonidae). 
Canadian Entomol. 104 : 383-407. 
Donisthorph, H. StJ. 
1927. Guests of British Ants. London. 244 pp. 
Emkrton, J. H. 
1911. New spiders from New England. Connecticut Acad. Arts Sci. 16 : 
383-407. 
Hunter, J. E. and Farrier, M. H. 
1976. Mites of the genus Oplitis Berlese ( Acarina: Uropodidae) associated with 
ants (Hymenoptera: Formicidae) in the southeastern United States; 
Parts I and II. Acarologia 17 : 595-624 and 18 : 20-50. 
