Applied Entomology and Zoology
Online ISSN : 1347-605X
Print ISSN : 0003-6862
ISSN-L : 0003-6862
Regular Papers
Effects of male body size on mating behavior and female mate refusal in the white-spotted longicorn beetle, Anoplophora malasiaca (Thomson) (Coleoptera: Cerambycidae)
Midori FukayaTetsuya YasudaToshiharu AkinoHiroe YasuiSadao WakamuraTakeshi FukudaYasuhiro Ogawa
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2004 Volume 39 Issue 4 Pages 731-737

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Abstract

In the white-spotted longicorn beetle, Anoplophora malasiaca (Thomson) (Coleoptera: Cerambycidae), body size shows a large diversity both in males and females. We compared behavioral responses of different sizes of males to intact females and glass-rod models treated with female extract. Holding, mounting and abdominal bending responses to females were more frequently observed in small males than in large ones. Furthermore, small males showed these behaviors in response to lower doses of female extract than did large ones. However, females refused small males more frequently than large males, and approached the latter more frequently. This suggested that small males have high sensitivity to female sex pheromone that may offset the disadvantage of lower preference by females.

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© 2004 by the Japanese Society of Applied Entomology and Zoology
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