On the development of the brown spider Loxosceles gaucho Gertsch (Araneae, Sicariidae): the nympho-imaginal period

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dc.contributor.authorRinaldi, Isabela M.P [UNESP]
dc.contributor.authorForti, Luiz Carlos [UNESP]
dc.contributor.authorStropa, André A [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:12:14Z
dc.date.available2014-05-20T15:12:14Z
dc.date.issued1997-09-01
dc.description.abstractObservations of the developmental biology of Loxosceles gaucho Gertsch, 1967, the brown spider of southeastern Brazil are scarce. The present study reports the method of individualized rearing of 18 populations of L. gaucho, kept in laboratory under varied diet conditions, and characterizes their nympho-imaginal period as well as factors related to their reproduction. Females built the first egg sac about 20 days after copulation and nymphs hatched 40 days after the laying date. Average offspring was 61.3 spiderlings and females usually built three to four successive egg sacs in a period of five to seven months. First nymphs initiated their predatory activity between the 5th and 8th days after hatching and the majority reached adulthood within six moults (range of five to eight) in approximately 15 to 17 months (male) and 15.5 to 18 months (female). The average sex ratio equaled 1.0:1.7 (male:female). The wide individual variability of this species intermoult intervals is herewith expressed by the intermoult rate, which was fairly uniform for both intra and interpopulations and gives a relevant aspect for a general idea of the life cycles of spiders.en
dc.description.affiliationUniversidade Estadual Paulista Instituto de Biociências Departamento de Zoologia
dc.description.affiliationUniversidade Estadual Paulista Faculdade de Ciências Agranômicas Departamento de Defesa Fitossanitária
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Biociências Departamento de Zoologia
dc.description.affiliationUnespUniversidade Estadual Paulista Faculdade de Ciências Agranômicas Departamento de Defesa Fitossanitária
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.format.extent697-706
dc.identifierhttp://dx.doi.org/10.1590/S0101-81751997000300018
dc.identifier.citationRevista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 14, n. 3, p. 697-706, 1997.
dc.identifier.doi10.1590/S0101-81751997000300018
dc.identifier.fileS0101-81751997000300018.pdf
dc.identifier.issn0101-8175
dc.identifier.lattes6187684824965648
dc.identifier.scieloS0101-81751997000300018
dc.identifier.urihttp://hdl.handle.net/11449/28321
dc.language.isoeng
dc.publisherSociedade Brasileira de Zoologia
dc.relation.ispartofRevista Brasileira de Zoologia
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectBrown spideren
dc.subjectLoxosceles gauchoen
dc.subjectSicariidaeen
dc.subjectdevelopmenten
dc.titleOn the development of the brown spider Loxosceles gaucho Gertsch (Araneae, Sicariidae): the nympho-imaginal perioden
dc.typeArtigo
unesp.author.lattes6187684824965648
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentProteção Vegetal - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas