Dorylaimida (Nematoda) from Botswana

ENGLISH ABSTRACT:Thirteen nematode species are recorded from Botswana. Illustrations are given for Ecumenicus monohystera (de Man, 1880) Thorne, 1974; Eudorylaimus diadematus (Cobb in Thorne & Swanger, 1936) Andrassy, 1959; Labronema mauritiense Williams, 1959; Discolaimus brevis Siddiqi, 1964; D. major Thorne, 1939; Aporcelaimellus adriaani Botha & Heyns, 1990; A. micropunctatus Botha & Heyns, 1990; A. papillatus (Bastian, 1965) Baqri & Khera, 1975; A. parapapillatus Botha & Heyns, 1990 and a specimen belonging to Prodorylaimusor to Laimydorus. Measurements are given for the above-mentioned species as well as for Discolaimium simplex Siddiqi, 1965 and Discolaimoides bulbiferus (Cobb, 1906) Heyns, 1963. A new Mesodorylaimus species viz. M. usitatoides is described. For the first time males are described for A. adriaani and A. micropunctatus. Discolaimus paramajorCoomans, 1966 is considered a possible synonym of D. major. ********** AFRIKAANSE OPSOMMING: Dertien nematood spesies word uit Botswana aangeteken. Illustrasies word gegee vir Ecumenicus monohystera (de Man, 1880) Thorne, 1974; Eudorylaimus diadematus (Cobb in Thorne & Swanger, 1936) Andrassy, 1959; Labronema mauritiense Williams, 1959; Discolaimus brevis Siddiqi, 1964; D. major Thorne, 1939; Aporcelaime/lus adriaani Botha & Heyns, 1990; A. micropunctatus Botha & Heyns 1990; A. papillatus (Bastian, 1965) Baqri & Khera, 1975; A. parapapi/latus Botha &. Heyns, 1990 en 'n eksemplaar wat aan Prodorylaimus of aan Laimydorus behoort. Afmetings word vir al die bogenoemdes gegee, sowel as vir Discolaimium simplex Siddiqi, 1965 en Discolaimoides bulbiferus (Cobb, 1906) Heyns, 1963. 'n Nuwe Mesodorylaimus spesie, naamlik Mesodorylaimus usitatoides word beskryf. Mannetjies word vir die eerste keer beskryf vir A. adriaani en A. micropunctatus. Discolaimus paramajor Coomans, 1966 word as 'n moontlike sinoniem van D. majorbeskou.