Visual and olfactory cues for mate orientation behaviour in male white-spotted longicorn beetle, Anoplophora malasiaca |
| |
Authors: | Midori Fukaya Toshiharu Akino Tetsuya Yasuda Hiroe Yasui & Sadao Wakamura |
| |
Institution: | Laboratory of Insect Behavior, National Institute of Agrobiological Sciences, Ohwashi 1-2, Tsukuba 305-8634, Japan |
| |
Abstract: | Olfactory and visual cues were shown to mediate short‐distance orientation in Anoplophora malasiaca (Thomson) (Coleoptera: Cerambycidae). In a laboratory test, more than 80% (n = 42) of males walked straight upward when presented with an untreated surface with a 75° slope. When a freshly killed female was fixed at a short distance (10 cm ahead and 5 cm to left/right) from the starting point, 50% of males (n = 30) were oriented toward the female before direct contact. Similar behavioural responses were observed when female extract was directly applied to the slope or to a glass rod model fixed on the slope. When black, white, and transparent coloured rods with the extract were presented, the orientation response was significantly greater for black than to white and transparent rods, to which only a negligible response was observed. |
| |
Keywords: | Anoplophora malasiaca mating behaviour olfactory cue visual cue mate orientation Coleoptera Cerambycidae |
|
|