Chilensis elegans		Contents		Rev 12/11/2023
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Chilensis Menu		Economic Importance		Damage
		Distribution		Management
Return to Tylenchidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Tylenchida
       Tylenchina
        Tylenchoidea
         Tylenchidae

            Ecphyadophorinae

              Chilensis elegans Chilenchus elegans (Raski & Geraert, 1986) Siddiqi, 2000.

Type species of the genus

Synonyms:
     Lelenchus elegans Raski & Geraert, 1986

Raski collected the type species of this genus in Chile and, with Geraert, described it as Lelenchus elegans Raski & Geraert, 1986. Siddiqi (2000) considered that characteristics of the species differed from those of the genus Lelenchus and established the genus Chilenchus for this species, recognizing Chile as the source of the type specimen.  Consequently, the type and only species is Chilenchus elegans (Raski & Geraert, 1986) Siddiqi, 2000.

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Morphology and Anatomy:

• Elongate, slender nematodes,

• Cephalic region flattenes, labial disk rounded, not offset from body contour; small pore-like amphid apertures

• Cuticle appears very finely striated; Lateral field with 4 incisures where visible.

• Amphid aperture longitudinal, sinuous

• Stylet delocate, without knobs or basal thickenings.

• Metacorpus not very muscular; isthmus long; postcorpus elongast saccatenot overlapping intestine.

• Females monodelphic, prodelphic; vulva flush with body contour; short post-uterine sac; spermatheca offset..

• Males with low, ad-cloacal busra; simple gubernaculum.

• Tail in both sexes very long, filiform.

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Key to the Family Tylenchidae

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Distribution:

Described from Hoste Island, Chile (Geraert, 2008).

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Economic Importance:

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Feeding:

Root associates - feeding uncertain, either ectoparasites of root epidermis and root hair cells and/or hyphal feeding (Yeates et al., 1993).

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Hosts:

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Life Cycle:

Based on presence of males and sperm in spermatheca, assumed to be sexually reproducing.

Ecophysiological Parameters:

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Damage:

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Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

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References:

Geraert, E. 2008. The Tylenchidae of the world: identification of the family Tylenchidae (Nematoda). Gent, Academia Press: 540 pp

Raski, D.J. and Geraert, E. 1985. New species of Lelenchus Andrassy, 1954 and Ecphyadophora de Man, 1921 (Nemata: Tylenchidae) from southern Chile. Nematologica 31: 244-265.

Siddiqi, M.R. 2000. Tylenchida: parasites of plants and insects, 2nd edition. Wallingford, UK, CAB International

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331

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Copyright © 1999 by Howard Ferris.
Revised: December 11, 2023.