Christiella		Contents		Rev 09/30/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Christiella Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Hystrignathidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

            Chromadoria

Christiella Travassos & Kloss, 1957

Type species of the genus: Christiella christiella Travassos & Kloss, 1957

Synonyms:

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Morphology and Anatomy:

Female:

• Cervical cuticle without spines.
•  Cephalic extremity formed by two cephalic annules, the posterior annule larger.
• Esophageal corpus divided, the posterior portion subcylindrical.
• Vulva near midbody
• Monodelphic
• Tail attenuated.

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Distribution:

Species described from passalid beetles in South America

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Feeding:

Food Sources and Feeding strategies for the genus Christiella

 Intestinal parasites of passalid beetles (Coleoptera: Passalidae).

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Adamson, M.L. and Van Waerebeke, D. 1992. Revision of the Thelastomatoidea, Oxyurida of invertebrate hosts III . Hystrignathidae. Systematic Parasitology 22:111-130

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Revised by Howard Ferris: September 30, 2026.