Hemicaloosia vagisclera




Rev 03/10/2020

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Hemicaloosia Menu Economic Importance Damage
Distribution Management
Return to Hemicycliophoridae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology




         Hemicaloosia vagisclera Inserra, Stanley, Troccoli, Chitambar & Subbotin, 2013

Back to Top

Morphology and Anatomy:




  • Body slightly ventrally curved when heat killed
  • Second membranous cuticle tight fitting and thinner than body cuticle
  • Cuticle with widely-separated striations
  • Lateral field a single line
  • Labial plate a thick ring below first lip annule
  • Amphid openings large, semicircular
  • Stylet long, slender, with knobs round to posteriorly sloping
  • Esophagus with broad isthmus and pear-shaped terminal bulb
  • Monovarial, prodelphic, vagina vera heavily sclerotized
  • Spermatheca oval, containing round sperm
  • Tail elongate, conical


  • Males abundant
  • Body C-shaped, head rounded
  • No stylet, esophagus degenerate, poorly developed
  • Latera field with two lines
  • Spicules straight with distinct gubernaculum
  • Bursa peloderan, ending before tail tip
  • Distal portion opf tail digitate with rounded terminus


  • Usually ensheathed in molted cuticle of previous stage.

Ref: Inserra et al., 2013



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


Back to Top


Recorded from sandy soil in Marion and Polk counties in cental and north Florida, USA associated with Saint Augustine grass (Stenotaphrum secundatum) and Bermuda grass (Cynodon dactylon).


Back to Top

Economic Importance:

Occurs in golf courses and sod farms but level of damage unknown.


Back to Top


  Migratory ectoparasite of plant roots.

Back to Top


For an extensive host range list for this species, click


Back to Top

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters

  Sexually reproducing, males common, sperm observed in spermatheca.

Back to Top




Back to Top


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

For plants reported to have some level of resistance to this species, click


Back to Top


Inserra, R. N., Stanley, J.D., Troccoli, A., Chitambar, J., Subbotin, S.A. 2013. Hemicaloosia vagisclera n. sp. (Nematoda: Caloosiidae) from Bermuda grass in Florida and its phylogenetic relationships with other criconematids. Nematology 15: 23-39.

Back to Top

Copyright © 1999 by Howard Ferris.
Revised: March 10, 2020.