Description of Helicotylenchus gerti sp. n. and new records of some species of Helicotylenchus (Steiner, 1945) from Ethiopia (Nemata: Hoplolaimidae)

Authors

  • M. MARAIS
  • T. MEKETE
  • L. R. TIEDT

Keywords:

Ethiopia, Helicotylenchus, new records, new species, plant-parasitic nematodes, SEM, taxonomy

Abstract

One new and seven known species, belonging to the genus Helicotylenchus are reported from Ethiopia. Helicotylenchus gerti sp. n. is characterized by a hemispherical lip region, first two lip annuli broader than rest of lip annuli (1.0-1.3 vs 0.5-0.6 mm), stylet length (22-24 mm), exceptional size of median bulb valve (5-8 mm long and 4 mm wide), and presence of a long (6-9 mm) non-annulated digitate ventral tail projection. Morphometrics of Ethiopian populations of H. californicus, H. digonicus, H. dihystera, H. egyptiensis, H. martini, H. multicinctus and H. willmottae are provided. Six of these seven species (H. californicus, H. digonicus, H. dihystera, H. egyptiensis, H. martini and H. willmottae) are new records for Ethiopia.

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Author Biographies

M. MARAIS

Nematology Unit, Biosystematics Division, ARC-Plant Protection Research Institute, Private Bag X134,
Queenswood 0121, South Africa

T. MEKETE

Plant Protection Research Center, PO Box 37, Ambo, Ethiopia

L. R. TIEDT

Laboratory for Electron Microscopy, North West University: Potchefstroom Campus, Potchefstroom 2520, South Africa

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How to Cite

MARAIS, M., MEKETE, T., & TIEDT, L. R. (2009). Description of Helicotylenchus gerti sp. n. and new records of some species of Helicotylenchus (Steiner, 1945) from Ethiopia (Nemata: Hoplolaimidae). Journal of Nematode Morphology and Systematics, 8(1), 39/49. Retrieved from https://revistaselectronicas.ujaen.es/index.php/jnms/article/view/88