Abstract
Two new species of Aphanonchus are described from Germany and Ivory Coast.
Aphanonchus europaeus sp. n., from Germany, is best characterised by 1.1-1.4
mm long body, presence of 50-96 lateral epidermal glands; female without
neck setae, with straight vagina without sclerotisations and three to nine
prevulval alveoli; male with a pair of neck setae, 15 tubular and 20
alveolar supplements, one pair of precloacal and four pairs of caudal setae,
39 μm long spicules. Aphanonchus africanus sp. n., from Ivory Coast, is
characterised by 1.0-1.3 mm long body, presence of 37 to 71 lateral
epidermal glands; female with a pair of neck setae, straight to slightly
sinuous vagina without sclerotisations, and without alveoli; male with a
pair of neck setae, 12-18 tubular and 54-80 alveolar supplements, a pair of
precloacal and four pairs of caudal setae, 35.5-43 μm long spicules.
Morphological data, based on specimens of A. bayensis from Costa Rica, A.
multipapillatus from Colombia and Suriname, A. obesus from Ivory Coast and
the type locality in Vietnam, and type specimens of A. longiceras, are
presented and supplement the descriptions of these four species. An emended
diagnosis and a revised classification of Aphanonchus are proposed and a key
to the species of the genus is provided.