The gland cells of the metathoracic apophyses of some Brazilian Hesperidae are descrived. The apophyses possess scent glands which were firstly descrived in the morphological part of this study (BARTH, 1). The gland represents a complex organ with a glandular part hidden in the mentioned apophyses, and with an evaporating part formed by a brush of bristles on the hand tibia. The gland surface of an apophyse is composed of unicellular and independent gland elements leading out their excretion each by means of a scent scale. The liquid apears on the surface of the scale for evaporation. The gland cells correspond to the trichogenic cells of the scent scales. The principal parts of each gland cell are: a) a secreting protoplasmic body with typical cytological alterations during the inactive and active phases, with an ergastoplasmic basal zone and a conduct apparatus of just the same material including a cavity for storage; b) a nucleus which, corresponding to the trophic correlation between nucleus and protoplasm, suffered an increasing of its surface and which runs through typical alterations during the phase of activity. The nulcei are extremly polymorphic. c) a conduct apparatus which in every case is formed by the insertion socket of the scale and, in consequence, is of cuticular nature. With regard to the conduct apparatus two types of glands are descrived: 1. large cells with a prolongated duct system running through the whole cell; 2. small cells with a shorter duct apparatus entering the apical part of the cell to occupy only one half of it, the cell thus becoming asymmetrical. The first type is found in species which possess only this apparatus as a scent organ, while the second one occurs in species which, in addition to the glands in the apophyses, have one more scent aparatus formed by a costal fold. This paper deals with the following species: Sebaldia busirus, Pellicia bromias, Pellicia polyctor, Heliopetes arsalte and Hesperia syrichtus. Different phases of function of the gland cells are descrived. The correlation between the nucleus and the protoplasm becomes specially distinct in the glands with big cells, in Sebaldia busirus and Pellicia bromias. During the formation of the scent material the nucleus grows considerably by taking up fluid substances, while the chromatic mass does not increase. Simultaneous with the expulsion of the liquid out of the protoplasm of the gland cells the nucleus excretes an important quantity of fluid substances which probably represents regenerators which, reacting like catalysatores, restore the original structure of protoplasm.