Overwintering of Latrodectus hasseltii in shelter traps in Osaka Prefecture

Kiyoshi KAMIMURA; Masahiro YOSHIDA; Yasuyoshi NISHIO; Ines Tomoco MATSUSE; Satoshi SHIMANO; Yoshikazu SHIRAI

doi:10.7601/mez.50.137

Kiyoshi KAMIMURA, Masahiro YOSHIDA, Yasuyoshi NISHIO, Ines Tomoco MATSUSE, Satoshi SHIMANO, Yoshikazu SHIRAI

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Keywords: Latrodectus hasseltii, redback spider, overwinter, shelter trap, nest, Osaka

JOURNAL FREE ACCESS

1999 Volume 50 Issue 2 Pages 137-140

DOI https://doi.org/10.7601/mez.50.137

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Abstract

In order to investigate the overwintering of redback spiders in Japan, tubes and sockets made of polyvinyl chloride were set as shelter traps in a vacant land of Kishiwada City, Osaka Prefecture, in early summer in 1996. Fifty-two nesting spiders were found in 42 out of 411 traps, mainly during the fall and winter. It was confirmed that the spiders of all developmental stages were able to overwinter in the area.

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