OPILIONES
(harvestmen)

Subtaxon Example images Rank Featured
subtaxa
No of
images
No of
ID refs
 (Click to open)
Suborder 3 subtaxa 22 images
 (Click to open)
Suborder 14 subtaxa 178 images 5 ident. refs
Taxonomic hierarchy:
OrderOPILIONES (harvestmen)
ClassARACHNIDA (mites, spiders, false scorpions, harvestmen etc.)
SubphylumCHELICERATA (a subphylum of arthropods)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)

Identification Works

AuthorYearTitleSource
Anon. Spider and Harvestman Recording Scheme website srs.britishspiders.org.uk/portal.php/p/Locate
Cloudsley-Thompson, J.L. & Sankey, J. 1961 *** Land Invertebrates, a guide to British worms, molluscs and arthropods, excluding insects ***(Superseded) 156pp, Methuen & Co. Ltd.
Hillyard, P.D. & Sankey, J.H.P. 1989 *** Harvestmen (ed 2) ***(Superseded) Synopses of the British Fauna (New Series) , 4, 2nd edition edition, 76pp, Field Studies Council
Hillyard, P.D. 2005 Harvestmen (ed 3) Synopses of the British Fauna (New Series) , 4, 3rd edition edition, 167pp, Field Studies Council
Jones, D. 1983 The Country Life Guide to Spiders of Britain and Northern Europe Country Life Guides, 320pp, Country Life Books
Oger, P. Les araignees de Belgique et France - Opiliones arachno.piwigo.com/index?/category/697-opiliones
() Richards, R. 2010 Guide to Harvestmen of the British Isles
Sankey, J.H.P. & Savory, T.H. 1974 *** British Harvestmen ***(Superseded) Synopses of the British Fauna (New Series) , 4, 76pp, The Linnean Society of London
Savory, T.H. 1955 *** The World of Small Animals ***(Superseded) 160pp, University of London Press
Wijnhoven, H. 2009 De Nederlandse hooiwagens (Opiliones) 118pp

OPILIONES (harvestmen) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for OPILIONES (harvestmen)
BioInfoBioInfo (www.bioinfo.org.uk) has 3 host/parasite/foodplant and/or other relationships for OPILIONES (harvestmen)

The male or female genitalia are sometimes required for identification.

They can be made to extrude by lying the spider on its back, then gently pressing/squeezing the body with finger and thumb. Maintain the pressure as the organ everts to its full length - they are surprisingly long.

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