Hollis, David Jumping plant lice of the tribe civiacremini (Homoptera: psylloidea) in the Ethiopian region David Hollis - London Trustees of the British Museum (Natural History) 1976 - 83p. ill 25cm. Includes bibliographies Subjects--Topical Terms: Jumping plant-liceClassificationInsects LC Class. No.: ZOO PAM QL461.H64