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Plectreuridae, sometimes called plectreurid spiders, are a small spider family confined to the North American deserts and the island of Cuba. Only two living genera are known - the nominate genus ''Plectreurys'' and ''Kibramoa''. In the past, the family was more widespread, with the Jurassic genus ''Eoplectreurys'' known from China, the Eocene ''Palaeoplectreurys baltica'' from Baltic amber and the Miocene ''Plectreurys pittfieldi'' from Dominican amber. These ecribellate (lacking a plate-like woolly silk-producing structure anterior to the spinnerets on the venter), haplogyne spiders build haphazard webs under rocks and dead cacti. Relatively little is known of their biology. Unlike the sicariids, scytodids and diguetids, to which they are most closely related, they have eight eyes. In appearance females of ''Plectreurys'' resemble those of the larger species of the cribellate Filistatidae. They differ in their eye arrangement and in having the first femora (third leg segment from the body) bowed. ==Species== †''Eoplectreurys'' Selden & Huang, 2010 * †''Eoplectreurys gertschi'' Selden & Huang, 2010 (Middle Jurassic, China) ''Kibramoa'' Chamberlin, 1924 * ''Kibramoa guapa'' Gertsch, 1958 (USA, Mexico) * ''Kibramoa hermani'' Chamberlin & Ivie, 1935 (USA) * ''Kibramoa isolata'' Gertsch, 1958 (Mexico) * ''Kibramoa madrona'' Gertsch, 1958 (USA) * ''Kibramoa paiuta'' Gertsch, 1958 (USA) * ''Kibramoa suprenans'' (Chamberlin, 1919) (USA) * * ''Kibramoa suprenans pima'' Gertsch, 1958 (USA) * ''Kibramoa yuma'' Gertsch, 1958 (USA) ''Plectreurys'' Simon, 1893 * ''Plectreurys angela'' Gertsch, 1958 (USA) * ''Plectreurys ardea'' Gertsch, 1958 (Mexico) * ''Plectreurys arida'' Gertsch, 1958 (Mexico) * ''Plectreurys bicolor'' Banks, 1898 (Mexico) * ''Plectreurys castanea'' Simon, 1893 (USA) * ''Plectreurys ceralbona'' Chamberlin, 1924 (Mexico) * ''Plectreurys conifera'' Gertsch, 1958 (USA) * ''Plectreurys deserta'' Gertsch, 1958 (USA) * ''Plectreurys globosa'' Franganillo, 1931 (Cuba) * ''Plectreurys hatibonico'' Alayón, 2003 (Cuba) * ''Plectreurys janzen'' Alayón & Víquez, 2011, (Guatemala to Costa Rica) * ''Plectreurys misteca'' Gertsch, 1958 (Mexico) * ''Plectreurys mojavea'' Gertsch, 1958 (USA) * ''Plectreurys monterea'' Gertsch, 1958 (USA) * ''Plectreurys nahuana'' Gertsch, 1958 (Mexico) * ''Plectreurys oasa'' Gertsch, 1958 (USA) * ''Plectreurys paisana'' Gertsch, 1958 (Mexico) * †''Plectreurys pittfieldi'' Penney 2009 (Miocene, Dominican Amber) * ''Plectreurys schicki'' Gertsch, 1958 (USA) * ''Plectreurys tecate'' Gertsch, 1958 (Mexico) * ''Plectreurys tristis'' Simon, 1893 (USA, Mexico)〔T. L. Carpenter, B. J. Bernacky, and E. E. Stabell: "Human Envenomization by ''Plectreurys tristis'' Simon (Araneae: Plectreuridae): A Case Report" in ''Journal of Medical Entomology'', Vol. 28 (1991), No. 3, pp. 477-478.〕 * ''Plectreurys valens'' Chamberlin, 1924 (Mexico) * ''Plectreurys vaquera'' Gertsch, 1958 (Mexico) * ''Plectreurys zacateca'' Gertsch, 1958 (Mexico) Tentatively placed in Plectreuridae: * †''Palaeoplectreurys'' Wunderlich, 2004 * †''Palaeoplectreurys baltica'' Wunderlich, 2004 (Late Eocene, Baltic 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「Plectreuridae」の詳細全文を読む スポンサード リンク
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