The purpose of this work is to develop a recognition system of the Beetle Colorado Potato (Leptinotarsa decemlineata) pest. We work with images and we use them in the system based on neural networks. We use a collection of 25 images with different position of beetles, also with varying numbers of beetles. We calculate the brightness, contrast and contour orientation histograms for feature extraction of every image as input to the Random Subspace Classifier (RSC) neural classifier. We describe in this paper the structure, algorithms, and the initial results of the RSC classifier testing.