A NEW IDEA ON PHYLOGENY OF PROTURA WITH APPROACH TO ITS ORIGIN AND SYSTEMATIC POSITION
YIN WENYING Shanghai Institute of Entomology, Academia Sinica
Based on the faunal investigation of the Chinese Protura, the studies on the post-embryonicdevelopment of Sinentomon erythranum and the contemporary progress in work on ultrastruc-ture of spermatozoa of arthropods, the present paper puts forward a new idea on phylogenyof Protura, that is, group without tracheal system is the primitive group, while the group,cosentomids and sinentomids, with tracheal system, is a comparatively specialized group ofthe Protura. According to this new conception, a tentative phylogenetic arrangement of 53 known gen-era of the Protura is made. In addition, the relationship between the Insecta and Proturaas well as the systematic position of the Protura in the Phylum Arthropoda is also discussed.