Dolichodorus costaricensis




Rev 11/12/2022

Awl Nematode Classification Hosts
Morphology and Anatomy Life Cycle
Return to Dolichodorus Menu Economic Importance Damage
Distribution Management
Return to Dolichodoridae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology




         Dolichodorus costaricensis  Esquivel, Ferris, Cid del Prado & Subbotin, 2017



Back to Top

Morphology and Anatomy:



  • Head rounded and flattened distally
  • Lip region with a distinctive flat oral disc


  • Vulva and vagina without evident sclerotization
  • Body length (1.9-2.4 mm)
  • Body width (32-45 µm)
  • Stylet length (74-117 µm)
  • Esophagus length (202-258 µm)
  • Tail length (62-86 µm).


  • Similar to female in general features but somewhat shorter and thinner
  • Body length (1.5-2.3 mm)


Ref: Esquivel et al., 2017

Molecular characterization using the D2-D3 expansion fragments of 28S rRNA gene indicates that D. costaricensis has a sister relationship with D. mediterraneus.

D. costaricensis: lip region with oral disc.
D. costaricensis: male tail with detail of gubernaculum terminus
D. costaricensis: male tail SEM showing cloaca, bursa and tail tip

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

D. costaricensis: anterior
  Photographs, drawings and SEM by Alejandro Esquivel (Esquivel et al., 2017)  
Back to Top


Collected around the roots of an Inga ruiziana G. Don tree on the bank of small stream near San Andres Road, east of Matapalo, Puntarenas, Costa Rica.  Soil texture a well-aggregated and undisturbed sandy clay loam.

Near the type locality, San Andres, Matapalo, Costa Rica:
Bag containing soil sample with the type specimens of Dolichodorus costaricensis!
A result of a sampling expedition to collect specimens for a nematode and soil ecology course taught at Universidad Nacional de Costa Rica
Photograph by Ignacio Cid del Prado Vera

Back to Top

Economic Importance:



Back to Top


Ectoparasite mainly at root tip; nematode has long stylet.

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


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


Esquivel, A., Ferris, H., Cid del Prado, I., Subbotin, S.A. 2017. Dolichodorus costaricensis n. sp. (Tylenchida: Dolichodoridae): a new awl nematode species from the Central Pacific region of Costa Rica. Nematropica 47:143-154.




Back to Top

Copyright 1999 by Howard Ferris.
Revised: November 12, 2022.