Строение пищеварительной системы корневого клеща Rhizoglyphus echinopus (Fumouze et Robin) (Acarilormes, Acaroidea)

Abstract

The morphology and histology of the digestive system in adult Rhizoglyphus echinopus are described from serial sections in paraffin. The alimentary tract has a typical acarid form, characterized by a well-developed stomach bearing a posterolateral pair of the caeca, a distinct colon, postcolon and rectum. The anterior pair of the caeca is absent. The walls of the stomach, caeca, colon and postcolon consists of a single layer of cells which is enclosed by a thin non-cellular membrane and a net of muscles. The cells of the walls of the stomach with the caeca and colon may be classified in two groups.