Abstract
AbstractIn order to obtain direct information of stimulus dynamics perceived by a male moth under field conditions a portable device was constructed which enables continuous recording of responses from individual pheromone receptors. The device is suitable for tip recording by means of micro‐knives as well as for recording with tungsten electrodes making it applicable for a wide range of insects. A micro thermistor air velocity sensor is placed within 2 mm from the preparation to record the momentary air flow. The signal conditioning electronic circuits are battery powered, and the signals can be stored on a portable tape recorder. Field recordings were made from individual male antennal pheromone receptors of Aegeria myopaeformis and Adoxophyes orana. In all recordings the instantaneous firing frequency of the receptor cells was strongly modulated by the air velocity. Analysis of the data may provide information about the average pheromone concentration and the fine structure of pheromone plumes under various conditions.
Published Version
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