Cryptaphelenchus

Cryptaphelenchus	Contents	Rev 09/01/2023
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Cryptaphelenchus Menu	Economic Importance	Damage
	Distribution	Management
Return to Aphelenchoididae Menu	Feeding	References
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Classification:

       Tylenchida
       Aphelenchina
         Aphelenchoidea
          Aphelenchoididae
           Ektaphelenchinae

Cryptaphelenchus Fuchs, 1937

In general, there is considerable morphological homogeneity among psecies, overlap of morphometric data, a lack of conspicuous apomorphies and a lack of molecular data for most poorly illustrated species in older descriptions.

Small body nematodes, <500 mu
Lip region slightly offset by a depression in the cuticle, rounded
Cuticle striation distinct.
Stylet short, fine, with narrow lumen.
Esophageal median bulb rounded with valve in center.
Intestine simple, posteriorly ending in a blind sac, rectum and anus obscure

Female:

Monodelphic, prodelphic; ovary short; postuterine sac preseent
Rounded spermatheca.
Presence or absence of a post-uterine sac may be a character that distinguishes between species.

Male:

Monorchic.
Spicules paired, not fused.
Caudal alae absent.
Male tail conical, ventrally curved with 3-4 paiorsa of cloacal papillae.

Ref: Pedram et al. (2020); Gu et al. (2022).

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

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Distribution:

Often in dead logs, under bark, sometimes in wood-packing material. sometimes associated with insects and blu-stained fungi.

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Economic Importance:

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Feeding:

Mainly appear to be fungivores; some are insect associates, probably as a phoretic relationship.

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Hosts:

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Life Cycle:

Ecophysiological Parameters:

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Damage:

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Management:

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References:

Fuchs, A.G. (1937). Neue parasitische und halbparasitische Nematoden bei Borkenkafern und einige andere Nematoden. I. Teil. Zoologische Jahrbucher, Abteilung fur Systematik, Okologie und Geographie der Tiere 70, 291-380.

Gu, J., Fang, Y., Ma, X. 2022. Description of Cryptaphelenchus recticaudatus n. sp. (Aphelenchoidea: Ektaphelenchinae) in Pinus elliottii from the USA. Nematology 24:465-473

Pedram, M., Gu, J., Liu, L., Huo, K. 2020. Description of Cryptaphelenchus paravaricaudatus n. sp. (Aphelenchoidea: Ektaphelenchinae) from Pinus massoniana Lamb. in China. Nematology 22:723-732.