The fine structure of two types of glands in the feelers of cave Coleoptera Choleva spec. is described. Both gland types are exocrine and composed of 3 superposed cells: an apical cell or duct cell, an intermediate cell, and a basal cell. The basal cell is the main secretetory cell. It is characterized by numerous microvilli, secretored grains, and developed ergastoplasm. The intermediate cell develops numerous microvilli around the canal. The wall of the canal is perforated at this level, and the space around the canal is filled with an electron-dense substance. Thus the intermediate cell is also a secretory cell. The main differences between the two types lie in the aspect and structure of the secretion in the basal cell and the structure of the canal which sometimes constitutes a bulb. The glands are active in mature adults and are similar in the two sexes.