Rod Williams / Male Crab Spider (Xysticus cristatus) Lewisham, London, England, UK. June

MYN / Tim Hunt / Crab spider (Xysticus cristatus) Barnt Green, Worcestershire, UK, June. meetyourneighbours.net project

Bernard Castelein / Encounter between Robber fly (Eutolmus rufibarbis) and Crab spider (Xysticus audax) on a dew-covered thistle, Inslag, Brasschaat, Belgium, July.

Bernard Castelein / Encounter between Robber fly (Eutolmus rufibarbis) and Crab spider (Xysticus audax) on a dew-covered thistle, Inslag, Brasschaat, Belgium, July.

Bernard Castelein / Encounter between Robber fly (Eutolmus rufibarbis) and Crab spider (Xysticus audax) on a dew-covered thistle, Inslag, Brasschaat, Belgium, July.

Niall Benvie / Crab spider (Xysticus cristatus) on white background. Inverness-shire, Scotland, February.

MYN / Piotr Naskrecki / Ground crab spider (Xysticus ferox) Concord, Massachusetts, USA, June. meetyourneighbours.net project

Nick Upton / Crab spider (Xysticus cristatus) feeding on a smaller Crab spider (Synema globosa) on a Crown daisy (Chrysanthemum coronarium) flower, Corsica, France, May.

Alex Hyde / Crab Spider {Xysticus cristatus} female on flower. Austrian Alps, June 2009.

Stephen Dalton / Crab spider (Xysticus cristatus) on sand dune, UK, Thomisidae

Stephen Dalton / Crab spider (Xysticus ulmi) on grass, UK, Thomisidae

Stephen Dalton / Crab spider (Xysticus ulmi) on grass with insect prey, UK, Thomisidae