Evidence against moth attraction by Cyrtarachne, a genus related to bolas spiders

[摘要] References(12)Cited-By(3)Spiders of the genus Cyrtarachne are known to feed mainly on moths. To determine whether these spiders attract male moths of a particular group like bolas spiders, we collected prey caught by Cyrtarachne and moths flying in the field. Contrary to our expectation, prey moths comprised both sexes of various species, with the sex ratio of 0.77 in favor of females. Furthermore, sex ratio of prey and that of moth flying in the field did not differ significantly. These results suggest that Cyrtarachne does not seem to attract male moths.

[学科分类] 动物科学

[关键词] chemical mimicry;prey;moth;Cyrtarachne