Criconematoidea (Nematoda) From Argentina

Morphological and molecular characterisation of Hemicycliophora lutosa Loof & Heyns, 1969 and H. typica de Man, 1921 from South Africa (Nematoda: Hemicycliophoridae)

“…The following differences were noticed: the tail of H. lutosa is longer (108-178 vs 94-110 μm) giving a lower c value of 5.7-11.2 vs 8.9-13.2 and a lower VA%T value of 25.6-56.3 vs 36-81. Chitambar (1994) and Chaves (1983) gave the dorsal pharyngeal gland outlet for H. poranga as being located 10-19 μm from the stylet base compared with 5-7.5 μm for H. lutosa. Morphologically, the main differences are in the en face view of H. lutosa where the first lip annulus is rectangular with a narrow rectangular labial disc which is not markedly raised above the lip annulus vs first lip annulus in the form of a figure eight in H. poranga with a rounded to oval, distinctly raised, labial disc.…”

“…Because molecular studies showed H. lutosa and H. poranga (see descriptions by Monteiro & Lordello, 1978;Chaves, 1983;Chitambar, 1994;Costa Manso, 1996;Crozzoli & Lamberti, 2006) to be closely related, the two species were also compared morphologically and morphometrically. The following differences were noticed: the tail of H. lutosa is longer (108-178 vs 94-110 μm) giving a lower c value of 5.7-11.2 vs 8.9-13.2 and a lower VA%T value of 25.6-56.3 vs 36-81.…”

Molecular phylogeny, diagnostics, and diversity of plant-parasitic nematodes of the genusHemicycliophora(Nematoda: Hemicycliophoridae)

“…Females of the Spanish population were characterized by a loosely fitting cuticular sheath and typical cuticular ornamentation, appearing as blocks inside annuli, a rounded lip region with two annuli and an elevated labial disc, 7.7 ± 0.6 (7.0–8.0) μm wide, body annuli more than 240, lateral fields marked by anastomoses or breaks, vulval lips modified, and an elongate tail tapering uniformly to an acute terminus. Morphology and morphometrics of the Spanish population are coincident with the original description (Van den Berg, ) and those of Argentinean populations (Doucet, ; Chaves, ) except for minor intraspecific differences including a slightly wider lip region (20–23 vs. 16.2–21.1 μm), a slightly smaller number of body annuli (229–248 vs. 246–288, 241–316), a slightly longer stylet (94–110 vs. 81.5–98.6, 65–97 μm), a slightly larger VA%T value (54.2–86.3 vs. 25.1–70.7, 35–65), and a slightly shorter tail (78–103 vs. 84–172, 60–113 μm). The present record of H. ripa is the first from Spain, and constitutes the first record in Europe.…”

Compendium of the genus Mesocriconema Andrássy, 1965 (Nematoda: Criconematidae)

“…D Criconemoides citri Steiner, 1949, synonymised by Loof (1964a) D Macroposthonia citri (Steiner, 1949) Siddiqi, 1986 (idem) D Criconemoides georgii Prasad, Khan & Mathur, 1966, synonymised by De Grisse (1967) D Macroposthonia georgii (Prasad, Khan & Mathur, 1966) Siddiqi, 1986 M. sphaerocephaloides (De Grisse, 1967 M. talense (Chaves, 1984) Loof & De Grisse, 1989 D Criconemella talensis Chaves, 1984 D Macroposthonia talensis (Chaves, 1984) Siddiqi, 1986 M. teres (Raski, 1952) Loof & De Grisse, 1989 D Criconemoides teres Raski, 1952 D Macroposthonia teres (Raski, 1952) De Grisse & Loof, 1965 D Criconemella teres (Raski, 1952) Luc & Raski, 1981 M. thabaum Van den Berg, 1996D Macroposthonia thabaum (Van den Berg, 1996) Siddiqi, 2000 M. vadense (Loof, 1964b) Loof & De Grisse, 1989 D Criconemoides vadensis Loof, 1964D Macroposthonia vadensis (Loof, 1964) De Grisse & Loof, 1965D Criconemella vadensis (Loof, 1964) Luc & Raski, 1981 M. variabile (Raski & Golden, 1966) comb. n. D Bakernema variabile Raski & Golden, 1966 D Neobakernema variabilis (Raski & Golden, 1966) Ebsary, 1981 D Criconemella variabilis (Raski & Golden, 1966) Raski & Luc, 1987D Macroposthonia variabilis (Raski & Golden, 1966 Siddiqi, 2000…”