| Misumenops tricuspidatus (Fabricius, 1775) |
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Scientific name: Misumenops tricuspidatus (Fabricius, 1775) Common name: Other names: Other scientific name: Ebrechtella tricuspidata. French name: Order: Araneae Family: Thomisidae Size: Between 2.5 and 3.5 mm for males and between 5 and 6 mm for females. Biotope: Mainly on flowers and on low growing vegetation. Web: No web, spiders of this family are used to lying in wait to chase preys. Observation period: You can observe adults from May to August. Geographic area: Europe, Asia. |
Misumenops tricuspidatus is one crab spider species. There is an important sexual dimorphism. On males, the four fore legs are dark brown with paler rings. They are much longer than the other legs. The cephalothorax is pale brown with two lateral dark brown stripes. The hind legs, which are shorter, are almost translucent green. The upper side of the abdomen is pale green with white marks on the outer margin and dark green lines in the centre. The under side is dark brown. On females, the legs and the cephalothorax are pale green. The four fore legs are much longer too. This is one typical characteristic of the crab spiders which enables them to walk in almost all directions. The abdomen, which is larger than the males' one, is white. It can show three brown reddish marks resembling a face. There is a possible confusion of the female with Diaea dorsata which is mainly found sitting on leaves on woodland edges or in bushy places. Diaea dorsata shows a well marked, oval-shaped, beige or brown patch on the upper side of the abdomen. |
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Here is one male Misumenops tricuspidatus. This spider is easy to tell apart but it is not often seen because of its small size. |
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I have tried to take pictures of Lady Beetles while they were feeding on aphids on my Rose bushes. I have not been able to take a single picture because of the continuous wind. Then I saw this spider close to a large stem, in a more stable place. I have been to approach it and take one picture. Rose aphids (Macrosiphum rosae) are not only eaten by Lady Beetles. This male Misumenops tricuspidatus will have aphid for lunch today. |
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I have observed this Misumenops tricuspidatus on an umbelliferae flower on a woodland edge. This spider species is rather easy to recognize, though I had first thought to Diaea dorsata before noticing my error. The mark on the upper side of the abdomen does not let any doubt. This one is a female. Females greatly differ from males! |
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I have observed this female on Buddleia flowers. |
André Bon September 2013