Thomisidae: True Crab Spiders (ambush predators on flowers).
Bassaniodes – B. robustus
Diaea – D. dorsata (Green Crab Spider)
Misumena – M. vatia (Flower Crab Spider)
Ozyptila – claveata
Pistius – P. truncatus (Truncated Crab Spider)
Synema – S. globosum
Thomisus – T. onustus (Heather Crab Spider)
Xysticus – X. cristatus ✓; X. ulmi; X. audax; X. kochi; X. sabulosus; X. bifasciatus; X. luctuosus; X. luctator; X. lanio; X. erraticus;
Xysticus cristatus. Photo by Samantha Batty
Habitat and ecology (X. cristatus)
X. cristatus occurs in almost every habitat type, but is shade intolerant and rare in woodlands and closed canopy habitats. Large numbers can be found in grasslands and habitats which have undergone some degree of disturbance such as quarries and agricultural fields. In grasslands, this spider exploits a flexible hunting position either at the tips of vegetation or on the ground surface. As a consequence, the diet is extremely varied and comprises flying insects, including bees and butterflies, when positioned in flower-heads, or ants, spiders and other soft bodied prey when ambushing prey on the ground (Nyffeler & Breene 1990). Immatures have been found ballooning, particularly between the months of July to September (Freeman 1946). Adults have been recorded from February to December, with a male activity peak in May and June (Merrett 1967; Bell 1999).
https://srs.britishspiders.org.uk/portal.php/p/Summary/s/Xysticus+cristatus/u/4990/x/7d4772c5