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The scaffold web spiders of the family Nesticidae, are closely allied with the Theridiidae, or tangle web spiders. Like the Theridiidae, these spiders have a comb of serrated bristles on the hind tarsi that are used to pull silk bands from the spinnerets. It contains 13 genera and about 230 species, many of which are associated with caves or overhangs. The genus ''Nesticus'' is the type for the family and is found throughout the world. The related ''Eidmannella'' has speciated considerably in Texas caves and includes some extremely localized species that are considered threatened. One species, ''Eidmannella pallida'', is found in caves and under overhangs, but also in agricultural fields and other habitats away from such restricted areas. The genus ''Carpathonesticus'' is found in central Eurasia. == Genera == , the World Spider Catalog accepted the following extant genera: *''Aituaria'' Esyunin & Efimik, 1998 *''Canarionesticus'' Wunderlich, 1992 *''Carpathonesticus'' Lehtinen & Saaristo, 1980 *''Cyclocarcina'' Komatsu, 1942 *''Eidmannella'' Roewer, 1935 *''Gaucelmus'' Keyserling, 1884 *''Hamus'' Ballarin & Li, 2015 *''Nescina'' Ballarin & Li, 2015 *''Nesticella'' Lehtinen & Saaristo, 1980 *''Nesticus'' Thorell, 1869 *''Pseudonesticus'' Liu & Li, 2013 *''Typhlonesticus'' Kulczyński, 1914 *''Wraios'' Ballarin & Li, 2015 The following extinct genera have been placed in the Nesticidae: *†''Balticonesticus'' Wunderlich, 1986 – Palaeogene, Baltic amber *†''Eopopino'' Petrunkevitch, 1942 – Palaeogene, Baltic and Bitterfeld amber *†''Heteronesticus'' Wunderlich, 1986 – Palaeogene, Baltic amber *†''Hispanonesticus'' Wunderlich, 1986 – Neogene, Dominican amber 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scaffold web spider」の詳細全文を読む スポンサード リンク
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