Original Research

A first list of plant-parasitic nematodes from the Wilderness National Park, with a description of Ogma sekgwaum spec. nov.

Esther Van den Berg
Koedoe | Vol 36, No 2 | a375 | DOI: https://doi.org/10.4102/koedoe.v36i2.375 | © 1993 Esther Van den Berg | This work is licensed under CC Attribution 4.0
Submitted: 17 September 1993 | Published: 17 September 1993

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Esther Van den Berg, Plant Protection Research Institute, South Africa

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Abstract

Ogma sekgwaum spec. nov. is described and figured from the Wilderness National Park. Females of this species are characterized by having one lip annulus with smooth, wavy margin, no submedian lobes, 53-59 body annuli, not strongly retrorse anteriorly, but becoming more so posteriorly with 12-14 longitudinal rows of projections at midbody, gradually lengthening and attenuating towards posterior end of body, longer on post-vulval ventral side of body, not branched or bifurcate with small protuberances on extreme tips which become hair-like on post-vulval projections and a 64-81 (im long stylet. Ogma coronatum Schuurmans Stekhoven & Teunissen, 1938 is described and figured with notes on the juvenile. Additional measure^ ments and SEM photographs are given for Criconema duplicivestitum (Andrassy, 1963) Raski & Luc, 1985 and measurements for Ogma naomiae Van den Berg, 1992. A list is given of the other known plant-parasitic nematodes also found. Neolobocriconema palaniense Muthukrishnan, 1987 is transferred to Ogma palaniense (Muthukrishnan, 1987) comb. nov.

Keywords

Criconema, Ogma, taxonomy, Wilderness National Park.

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