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Aphids perceive plant odours by olfactory sensilla, rhinaria, on their antennae. Aphid olfaction was studied by recording electroantennograms (Visser & Piron, 1995; Visser et al., 1996, see page 10). |
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Secondary rhinaria on the third antennal segment of the vetch aphid, Megoura viciae |
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Proximal primary rhinarium on the fifth antennal segment of the vetch aphid, Megoura viciae |
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Distal primary rhinarium on the sixth antennal segment of the vetch aphid, Megoura viciae |
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Electroantennograms of Megoura viciae to (E)-2-hexenal. Digitized recordings enabled correction of electroantennograms for DC drift (B calculated from A) and smoothing (D calculated from C). |
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Antennal preparation for electroantennogram recordings: the head of an aphid was removed just behind the eyes. One antenna was amputated and the tip of the remaining antenna was cut leaving the distal primary rhinarium intact. |
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The vetch aphid, Megoura viciae |
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