Quinisulcius

 

Contents

 

Rev 08/11/2025

Stylet or Stunt nematodes Classification Hosts
Morphology and Anatomy Life Cycle
Return to Quinisulcius Menu Economic Importance Damage
Distribution Management
Return to Dolichodorudae Menu Feeding  References
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      Classification:

     

Rhabditida
       Tylenchina
        Tylenchoidea
           Dolichodoridae
             Telotylenchinae

           Quinisulcius Siddiqi, 1971

Type species of the genus: Quinisulcius capitatus (Allen, 1955) Siddiqi, 1971


    Synonyms:

 Tylenchorhynchus Cobb, 1913

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Morphology and Anatomy:

 

 

General Characteristics

  • Body small-sized, <1mm  
  • Cutile with prominent striations
  • Cephalic framework rounded, lightly striated. 
  • Lateral field with five lines, sometimes areolated.  Longitudinal ridges sometimes present on body.  
  • Tail conoid to subcylindroid, about three times as long as wide (c' = 2 to 4), sometimes with thicker cuticle in the distal portion.  
  •  Stylet 12-24 µm long, tmoderately strong, has strong knobs, with cone about as long as shaft, sometimes needle-like.  
  • Median bulb well developed, not set off from procorpus by a constrition.
  • Esophageal glands bound by a membrane into a large basal bulb. Appear to butt into intestine. 
  • Cardia prominent

Females:

  • Diovarial, amphidelphic, ovaries outstretched, vulva about 50%.
  • Tail may be ventrally arcuate, terminus round.

Males:

 [Ref: Geraert, 2022.]

 
 

Body size range for the species of this genus in the database - Click:
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Distribution:

Widely distributed

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Economic Importance:

D-rated pest in California Nematode Pest Rating System.

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Feeding:

Food Sources and Feeding strategies for the genus Quinisulcius

Generally true ectoparasites on epidermal cells and root hairs, but capable of endoparasitic feeding on some hosts.     

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Hosts:

 
For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Geraert, E. 2011.  The Dolichodoridae of the World.  Academia Press, Gent 520p

Siddiqi, M.R. 1971. Structure of the oesophagus in the classification of the superfamily Tylenchoidesa (Nematoda). Indian J. Nematology 1:25-43.

 

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Copyright © 1999 by Howard Ferris.
Revised: August 11, 2025.