![]() ![]() When it is cold or to chase prey, this spider will slip through a crack to come indoors to seek shelter. They tend to stay hidden under rocks and in woodpiles. The black widow spider is venomous and is black and shiny with a characteristic red hourglass shape on its underside. doi: 10.1636/0161-8202(2002)0302.0.CO 2.Did you know that there are 38 known species of spiders located in Georgia? Here are twelve of the most common eight-legged creatures invading Georgia homes, and they may pose a threat to you and your family. "Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)" (PDF). "Verified bites by the woodlouse spider, Dysdera crocata". "The Black Widow and Five Other Venomous Spiders in the United States". ![]() A Photographic Guide to Spiders of New Zealand. "Systematic aspects of the external morphology of Dysdera crocata and Dysdera erythrina (Araneae, Dysderidae)". The Spiders of Great Britain and Ireland. These hiding places serve as a nest for the female's sac which can carry up to 70 eggs. The female lays her eggs in a silken sac and is believed to look after her young after hatching. ![]() The courtship of these spiders is typically aggressive and mates risk injury from each other's large chelicerae. Like many other Dysdera spiders, it frequently dominates, and sometimes kills, other spiders and centipedes. This small but relatively large-fanged spider is very well equipped to prey on underground invertebrates of almost any kind.īecause of its relatively large fangs and wide gape, the woodlouse spider is an unusually dominant predator for its size. crocata include silverfish, earwigs, millipedes, burying beetles and crickets. crocata will take other invertebrates, and shows no particular preference for woodlice these are simply the most common prey in its habitat. Although the Woodlouse Spider is a dangerous predator to woodlice, it is not known to be a health hazard to humans or smaller animals. The Woodlouse Spider’s powerful jaws are made to impale the thick armor of woodlice and are strong enough to give humans a painful bite. Their diet consists principally of woodlice which-despite their tough exoskeleton-are pierced easily by the spider's large chelicerae the spider usually stabs and injects venom into the woodlouse's soft underbelly while avoiding any noxious defensive chemicals. Rather than spinning their webs at night, they use this time to search warm places for prey. Woodlouse spiders hunt at night and do not spin webs. They spend the day in a silken retreat made to enclose crevices in, generally, partially decayed wood, but sometimes construct tent-like structures in indents of various large rocks. Woodlouse spiders are usually found under logs, rocks, bricks, plant pots and in leaf litter in warm places, often close to woodlice. Dysdera crocata is difficult to distinguish from the much less common Dysdera erythrina, although this species is not often found near human habitation.ĭysdera crocata, which originated in the Mediterranean area, now has a cosmopolitan distribution (see map), ranging from Eurasia to parts of North and South America, South Africa, Australia, and New Zealand. Notably, they have disproportionately large chelicerae for a spider of this size. They have six eyes, a tawny orange to dark-red cephalothorax and legs, and a shiny (sometimes very shiny) pale beige to yellow-brown abdomen, sometimes dark grey. ![]()
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