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Gypsonoma dealbana
find out more... Gypsonoma dealbana Copyright: Peter Furze

Essex Field Club
Essex Field Club
registered charity
no 1113963
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EFC Centre at Wat Tyler Country ParkWe are open today

We are normally open to the public at our centre at Wat Tyler Country Park every Saturday, Sunday and bank holiday 11am-4pm. We are also open on Wednesdays 10am-4pm.
Autumn recording Record Grey Squirrel Record Fly Agaric
Record Ivy Bee
Record Wild Teasel
Record Sloe, Blackthorn
Record Garden Spider Record Nigma walckenaeri spider

Crab spider Misumena vatia

Misumena vatia Copyright: Peter Harvey
© Peter Harvey

Misumena vatia-white form Copyright: Peter Harvey
© Peter Harvey
Misumena vatia is a crab spider sometimes found in gardens, as well as in tall open grassland, woodland edge and open scrub habitats in the countryside. It may be found in the vegetation, or sitting on a flower head waiting for prey. In these situations its camouflage make it difficult to see until it moves, especially as the colouring may vary through white, yellow and greenish to match the flower. Only mature females can undergo background-matching colour changes. Some females have red anterior, dorso-lateral lines or spots which appear to be genetically determined and are unaffected by the background colour. Mature males are much smaller and with predominantly brown legs (below).
Misumena vatia male Copyright: Peter Harvey
Adults of both sexes have been recorded between May and August, but mainly in May and June.

The best distinguishing features are the body shape, legs and habit of sitting camouflaged in flower-heads. There are several different colour forms, not always as in the illustration. Also bear in mind that other crab spiders have similar legs and move in a similar way.

Misumena map
In Britain it has a strongly southern distribution (see map taken from the Provisional atlas of British spiders (Arachnida, Araneae), 2002).

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