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Heather Spider, Thomisus onustus Loading image. Please wait
Heather Spider (Thomisus onustus) :: 2001/08/25 :: Horton :: © A.Papadopoulos
Heather Spider (Thomisus onustus) :: 2001/08/25 :: Horton :: © A.Papadopoulos
Heather Spider (Thomisus onustus) :: Close-up Shot :: 2001/08/25 :: Horton :: © A.Papadopoulos
Heather Spider (Thomisus onustus) :: Face Shot :: 2001/08/25 :: Horton :: © A.Papadopoulos
Heather Spider (Thomisus onustus) :: Full View :: 2001/08/25 :: Horton :: © A.Papadopoulos





Heather Spider


Thomisus onustus

This spider may be pink, yellow or white, depending on the color of the flower on which it was found. Individual spiders can slowly change color, to match their surroundings. T. onustus does not spin a web; it typically sits among the pink blooms of heather (hence its common name) and patiently waits for prey, pouncing on it when it arrives.

Like other crab spiders that ambush their prey, the first two pairs of legs are used for grabbing insects and are, therefore, much longer and stronger than the last two.

The female, depicted in the pictures above, has a broad angular abdomen and the i carapace has two horn-like projections near the eyes (this feature is particularly evident in the second and fourth pictures).

Females are up to 6-7mm (1/4"), whereas males are about half that size, ranging between 2.5-3.5mm (1/8"). Males are orange-brown, with blackish legs, and are less variable in color than females.

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Fact Sheet

Food
Insects.

Web
None.

Active
Adults are active from April till around September.

Habitat
Heathers and other flowers in heathland, meadows and edges of cultivation.

Distribution
Europe, N. Africa, Asia, and Japan.

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Taxonomy


Superkingdom: Eukaryota; Kingdom: Metazoa; Phylum: Arthropoda; Subphylum: Chelicerata; Class: Arachnida; Order: Araneae; Suborder: Araneomorphae; Family: Thomisidae; Subfamily: Misumeninae; Genus: Thomisus; Species: onustus.

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