Lux, S.: The design of a phonoactograph suitable for study pn the influence of pheromones on. insect mobility. Acta physiol, pol., 1988, 39(5-6): 513 -516. An instrument for recording changes in insect mobility under the influence of pheromone was described. The Instrument was named ,.phonoactograph" because the intensity of rustle, maide by insects was utilized as a correlate of their movement. The Colorado beetle males exposed to the action of the female odour increased their mobility significantly.
Lux, S.: The design of an olfactometer and a method for quantitative study of the effect of odours on insect behaviour. Acta physiol, pol.,1988, 39(5-6): 504-512. Vertical air-flow olfactometer suitable for study of the influence of odours, on walking insect behaviour was described. The results of preliminary experiments proved that the olfactometer enables long-lasting "iquasiethological" observations. Employed method of observation gave. quantitative information about the influence of odours on ratios of' basic predeterminate activities, insect distribution (pattern and their tendency to Choose zones with an odour. The Colorado beetle (Leptinotarsa decemlineata Say) males preferred zones with the female odour spending there more time. During emission of the pheromone males were more active. In zones with the pheromone males displayed the tendency to cluster, spent more time taping intensely and more frequently attempted to mate.