Dorylaimida (Nematoda) from Botswana

Thirteen nematode species are recorded from Botswana. Illustrations are given for Ecuménicas monohystera (de Man, 1880) Thome, 1974; Eudorylaimus diadematus (Cobb in Thorne & Swanger, 1936) Andrássy, 1959; Labronema mauritiense Williams, 1959; Disoolaimus 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 Prodorylaimus or 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. adriaaniand A. micropunctatus. Discolaimus paramajor Coomans, 1966 is considered a possible synonym of D. major