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The giant house spider has been treated as either one species, under the name Eratigena atrica, or as three species, E. atrica, E. duellica and E. saeva. As of April 2020, the three species view was accepted by the World Spider Catalog. They are among the largest spiders of Central and Northern Europe.
Eratigena is a genus of spider in the family Agelenidae.Most of its species were moved from the genus Tegenaria in 2013, of which the genus name is an anagram. [2] Two species that frequently build webs in and around human dwellings are now placed in this genus: the hobo spider (Eratigena agrestis), native to Europe and Central Asia and introduced to North America, and the giant house spider ...
If the spider instead has three or four pairs of light spots on the lateral portions of the sternum, then it is one of the other two related Eratigena species. However absence of spots is not conclusive proof that the spider is a hobo spider, since the spots on other Eratigena species may be extremely faint and not readily visible. [8]
Eratigena duellica, the giant house spider, is a species of funnel weaver in the spider family Agelenidae. It is found in Canada, the United States, and Europe. [1] [2] The related species Eratigena atrica is also called the giant house spider. Eratigena atrica was transferred from the genus Tegenaria in 2013.
The Agelenidae are a large family of spiders in the suborder Araneomorphae.Well-known examples include the common "grass spiders" of the genus Agelenopsis.Nearly all Agelenidae are harmless to humans, but the bite of the hobo spider (Eratigena agrestis) may be medically significant, and some evidence suggests it might cause necrotic lesions, [1] but the matter remains subject to debate. [2]
This page lists all described genera and species of the spider family Agelenidae. ... Eratigena Bolzern, Burckhardt & Hänggi, 2013. Eratigena agrestis (Walckenaer, ...
The majority of these were moved to Eratigena, [3] including the giant house spider (Eratigena atrica) and the hobo spider (Eratigena agrestis). [1] They can be difficult to identify because they resemble wolf spiders and other funnel-web spiders in their area, [4] unless found in an area where they do not occur naturally. [5]
The hobo spider, Eratigena agrestis, may wander away from its web, especially in the fall, and thus come into contact with people. The Centers for Disease Control [ 45 ] blamed the hobo spider in three reports of necrotic "bites" in the Pacific Northwest of the United States between 1988 and 1996.