5832 x 3888 px | 49,4 x 32,9 cm | 19,4 x 13 inches | 300dpi
Date de la prise de vue:
2007
Lieu:
north america
Informations supplémentaires:
a fishing spider guarding a cocoon of young spiders Dolomedes is a genus of spiders of the family Pisauridae. They are also known as fishing spiders or dock spiders. Almost all Dolomedes species are semi-aquatic, with the exception of the tree-dwelling D. albineus in the southwestern United States and the grassland spider D. minor in New Zealand. They capture prey by grappling with them using their foremost legs, which are tipped with small claws, and then injecting venom when they bite. Like all pisaurids, female Dolomedes carry their egg sacs in their chelicerae, and use silk to build a nursery web. These nursery webs are built shortly before the spiderlings emerge from the eggsac. The female places the egg sac in the nursery web, and the spiderlings emerge within twenty-four hours. The spiderlings of most North American Dolomedes species remain in the web for one week, and then disperse en masse. D. triton, the six-spotted fishing spider, lives primarily in small lakes and ponds. This spider consumes mostly water striders, but like all Dolomedes, is an opportunistic ambush hunter that will eat anything that it can capture. Other Dolomedes species include D. scriptus, the dark fishing spider (D. tenebrosus), the raft spider (D. fimbriatus) and the great raft spider D. plantarius.
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