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Spider studies on Fair Isle

by Edward Milner and Nick Riddiford

Prior to the mid 1980s, knowledge of spiders on Fair Isle was restricted to observations by three specialists on short visits in the 1950s-early 1960s. No systematic work had been done and little or nothing was known about the occurrence of spiders during the winter months.

Indeed, there was much still to learned of spider distribution and occurrence in the other northern islands of Shetland, and Orkney. Pioneer work by Ed Milner (Shetland, including Fair Isle) and Nick Riddiford (Fair Isle) has changed all this. The residence of the latter on Fair Isle permitted an in-depth study to be carried out over a three-year period, concentrating mainly on the isle’s montane spiders. This has extended massively our knowledge of the spider fauna of one of Britain’s most isolated islands (40 km from the nearest land) and led to a number of interesting discoveries.

The results of this study have been written up (Milner & Riddiford, in press, Spider Studies on Fair Isle (Shetland) over a three-year period: distribution, phenology and the zoogeographical context) and will appear in a forthcoming issue of the Bulletin of the Amateur Entomologists’ Society. In the meantime, we are pleased to be able to make available here a list, with a brief indication of status, for those species known to occur on Fair Isle.

Species recorded for Fair Isle

as of 16/01/99

date given is date of first record

The categories are as designated by JNCC: Comm = common

s/An = synanthropic, Loc = local, Nb = Notable B etc

Meioneta saxatilis has recently been split into two species and only one (M.mossica) has definitely been identified from Fair Isle. The Meioneta "saxatilis" record was almost certainly a M mossica.

Authors are:
jc = John Cloudsley-Thompson
em = Edward Milner
nr = Nick Riddiford
rc = Richard Carpenter

  1. AMAUROBIIDAE
    Comm Amaurobius fenestralis   em 10/09/84

     

  2. PHOLCIDAE
    S/an Pholcus phalangioides   nr 17/08/98

     

  3. GNAPHOSIDAE
    Comm Drassodes lapidosus   em 04/09/87
    Loc Haplodrassus signifer   em 24/06/88

     

  4. CLUBIONIDAE
    Loc Clubiona phragmitis   em 20/07/85
    Comm Clubiona trivialis   ct 01/09/54

     

  5. THOMISIDAE
    Comm Xysticus cristatus   ct 01/09/54
    Comm Ozyptila trux   rc 01/07/57

     

  6. LYCOSIDAE
    Comm Pardosa palustris   ct 01/09/54
    Comm Pardosa pullata   ct 01/09/54
    Comm Pardosa nigriceps   em 20/07/89
    Loc Xerolycosa miniata   em 08/06/88
    Comm Alopecosa pulverulenta   em 24/06/88
    Comm Trochosa terricola   ct 01/09/54
    Loc Pirata piraticus   ct 01/09/54
    Loc Pirata tenuitarsis   em 20/08/89

     

  7. AGELENIDAE
    Comm Textrix denticulata   ct 08/10/55
    Comm Tegenaria domestica   ct 01/09/54
    Comm Cryphoeca silvicola   rc 01/07/57

     

  8. HAHNIIDAE
    Loc Hahnia nava   em 12/05/88

     

  9. THERIDIIDAE
    Comm Robertus lividus   em 10/09/84
    Loc Robertus arundineti   em 20/07/85

     

  10. TETRAGNATHIDAE
    Comm Tetragnatha extensa   ct 01/09/54
    Comm Pachygnatha degeeri   ct 01/09/54
    Comm Metellina segmentata   ct 01/09/54
    Loc Metellina merianae   ct 01/09/54

     

  11. LINYPHIIDAE-E
    Comm Ceratinella brevipes   em 10/09/84
    Comm Walckenaeria acuminata   em 10/09/84
    Comm Walckenaeria antica   em 04/09/87
    Comm Walckenaeria nudipalpis   em 20/07/85
    Loc Walckenaeria clavicornis   em 04/09/87
    Comm Walckenaeria cuspidata   em 05/09/87
    Loc Walckenaeria vigilax   em 29/07/88
    Loc Dicymbium brevisetosum   em 20/07/85
    Nb Entelecara errata   em 20/07/85
    Comm Hypomma bituberculatum   em 20/07/85
    Loc Metopobactrus prominulus   em 03/06/89
    Comm Gonatium rubens   ct 08/10/55
    Comm Pepanocranium ludicrum   em 12/05/88
    Comm Oedothorax fuscus   ct 01/09/54
    Loc Trichopterna thorelli   em 24/06/88
    Loc Silometopus elegans   em 06/09/87
    Loc Cnephalocotes obscurus   em 15/09/87
    Comm Tiso vagans   em 01/09/87
    Loc Monocephalus castaneipes   em 31/08/87
    Loc Lophomma punctatum   em 05/09/87
    Comm Gongylidiellum vivum   em 04/09/87
    Comm Erigonella hiemalis   em 12/05/88
    Comm Savignia frontata   em 10/09/84
    Comm Diplocephalus permixtus   em 10/09/84
    Loc Araeoncus crassiceps   em 20/07/89
    Loc Scotinotylus evansi   em 20/07/85
    Loc Typhochrestus digitatus   em 29/11/87
    Comm Erigone dentipalpis   ct 08/10/55
    Comm Erigone atra   ct 01/09/54
    Loc Erigone promiscua   em 20/07/85
    Loc Rhaebothorax morulus   em 20/07/85


  12. LINYPHIIDAE-L
    Comm Leptorhoptrum robustum   em 20/07/85
    Loc Drepanotylus uncatus   em 04/09/87
    Loc Leptothrix hardyi   em 01/10/87
    Loc Hilaira frigida   em 20/07/85
    Loc Halorates reprobus   em 01/09/87
    Loc Porrhomma montanum   em 20/07/85
    Comm Agyneta subtilis   rc 01/07/57
    Loc Agyneta decora   em 08/06/88
    Comm Meioneta "saxatilis"   em 28/10/87
    (Loc) Meioneta mossica   em 24/06/88
    Comm Centromerus prudens   em 01/09/87
    Comm Centromerus dilutus   em 08/07/88
    Comm Centromerita bicolor   em 01/09/87
    Comm Centromerita concinna   em 10/09/84
    Comm Bathyphantes gracilis   ct 08/10/55
    Comm Bathyphantes parvulus   em 01/09/87
    Loc Poeciloneta variegata   em 10/09/84
    Comm Bolyphantes luteolus   em 31/08/87
    Comm Lepthyphantes tenuis   ct 01/09/54
    Comm Lepthyphantes zimmermanni   em 10/09/84
    Comm Lepthyphantes mengei   ct 08/10/55
    Comm Lepthyphantes ericaeus   em 20/07/85
    Loc Allomengea scopigera   em 10/09/84
 

 

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Copyright © 1999 Fair Isle Marine, Environment & Tourism Initiative
Last modified: February 05, 2002