Thelastoma

 

Contents

  

Rev 03/06/2023

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Thelastoma Menu Ecosystem Functions and Services
Distribution Management
Return to Thelastomatidae Menu Feeding  References
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Classification:

Chromadorea
                     Chromadoria

Thelastomatidae

Thelastoma Leidy, 1849

Type species of the genus: Thelastoma attenuatum Leidy, 1849

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Morphology and Anatomy:

Note: Species of Thelastoma are usually distinguished on the morphology of the adult females. The 2 main characters used in distinguishing speciesare the position of the excretory pore relative to the esophageal bulb and the length of the tail.

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Females:

  • Vulva at anterior half of body near midbody.
  • Didelphic-amphidelphic. Eggs oval.
  • Tail long, filiform

Males:

  • Genital cone prominent,
  • Single spicule
  • Preanal and postanal papillae present; one pair  on caudal appendage.
  •  Filiform tail.

Ref: Carreno, 2007

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

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Distribution:

 

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Feeding:

A genus of intestinal parasites of cockroaches; Females, males, and juveniles found in hind gut of cockroaches.

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Biology and Ecology:

  Of the Thelastoma species that have been described in North America, Thelastoma attenuatum; T. collare; T. labiatum, T. krausi and T. spicatum  have been reported from diplopods (miilipedes).

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Life Cycle:

For Ecophysiological Parameters for this genus, click 
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Ecosystem Functions and Services:

 

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Management:

 

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References:

 

Carreno, R.A. 2007. Description of a New Species of Thelastoma Leidy, 1849 (Nematoda: Oxyurida: Thelastomatidae) from the Millipede Euryurus leachii (Gray, 1832) in Ohio, U.S.A.Comparative Parasitology, 74:211-217.
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Copyright © 1999 by Howard Ferris.
Revised: March 06, 2023.