THE HOMOLOGY OF THE CZIAETOTAXY OF IMMATURE MOSQUITOES AND A REVISED NOMENCLATURE FOR THE CHAETOTAXY OF THE PUPA (DIPTERA, CULICIDAE)

There are in use at the present time several systems of nomenclature for the chaetotaxy of the immature stages of mosquitoes. These were developed independently for the lar-val and pupal stages. Recently Belkin (1951) revised the nomenclatures for the larva in an etFort to obtain a more uni-form system, equally applicable to anopheline and non-anopheline mosquitoes. Knight and Chamberlain (1948)) after a comparative study of all but 2 of the 30 recognized genera, devised a special nomenclature for the pupa. In the work of these authors no attempt was made to homologize the elements of the larval and pupal chaetotaxy, although Belkin (1951) suggested possible homologies. It appears that Baisas and Pagayon ( 1949) were the first to recognize the evident homologies of the chaetotaxy of the larva and the pupa and to attempt to correlate its individual elements in the tw