Neothada		Contents		Rev 12/16/2024
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Neothada  Menu		Economic Importance		Damage
		Distribution		Management
Return to Tylenchidae Menu		Feeding		References
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Classification:

  Chromadorea
       Rhabditida
       Tylenchina
          Tylenchoidea 
         Tylenchidae
         Boleodorinae 

          Neothada Khan, 1973

    Synonyms

      None

 Khan (1973) erected the genus Neothada for species originally described as Thada Thorne 1941 that have longitudinal as well as transverse striations (Heyns and vanden Berg (1996).

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Morphology and Anatomy:

.	Refer to subfamily diagnosis (Boleodorinae).  Key to Neothada species (from Heyns and vanden Berg, 1996)  I. Longitudinal striae 10, tail tip rather acute. .. N. geraerti     Longitudinal striae at least 14, tail tip bluntly rounded . . . . .  .2   2. Longitudinal striae 20, L:> 0.6 mm; tranverse striae >: 215. . . N. major     Longitudinal striae 14 or 16; L < 0.6 mm: transverse striae < 210 . . ..3   3.  Stylet with distinct basal knobs..................................... N hades       Stylet without distinct basal knobs ................................... .4   4. Longitudinal striae 14; transverse straiae > 195 .. .......N. andrassyi       Longitudinal striae 16; transverse straiae < 195 ................. 5   5. Lip region conoid. . . . . ....... ................................N. cancellata        Lip region more truncate......................................N. tatra          Drawings from Heyns and vanden Berg (1996).
Neothada hades: H Transverse section showing lateral field with 4 incisues and 3 wings, 14 longitudinal incisures separating 16 ridges ; I: Female monovarial, prodelphic gonad; K: Male with rcflexed testis: L Male with outstretched testis.
Surface view of anterior region: A. lateral; B. ventral.
Body size range for the species of this genus in the database - Click:

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Distribution:

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Economic Importance:

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Feeding:

  Classified as root associates by Yeates et al (1993).

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Hosts:

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Life Cycle:

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Damage:

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Management:

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References:

Heyns, J., van den Berg, E. 1996. Neothada hades n.sp. from South Africa, with notes on the genus and a key to the species (Nematoda: Tylenchidae). South African J. Zoology 31:165-169.

Khan, S.H.. 1973. On the proposal for Nethada n.gen. (Nematoda: Tylcnchinae). Abs., Sec. Riol. Sci., Proc Nat. Acad Sci., India. 41. Ann. Session 17-18.

Siddiqi, M.R. 1986. Tylenchida. Parasites of plants and insects. Commonwealth Agricultuml Bureaux. Farnham Royal. Slough, 645 pp.

Thorne, G. 1941. Some nematodes of the family Tyknchidae which do not possess a valvular median esophageal bulb. Great Basin Naturalist 2: 37-85.

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 16, 2024.