Female:
Body slender, slightly tapering strongly
ventrally curved.
Cuticle with distinct annuli, with four
indistincet lateral lines
Lip region semicircular, separated body contour
by a shallow depression.
Stylet delicate with narrow lumen,
Pharynx with procorpus slender, median bulb
oval, valve plates sclerotized, central or slightly anterior; pharyngeal
glands 40- 50 um long, overlapping intestine dorsally. Junction of
pharynx and intestine immediately at base of median bulb.
Nerve ring at ca 5-8 um posterior to median bulb.
Excretory pore located 54-65 um from anterior.
Intestine simple, posteriorly ending in a
blind sac, rectum and anus obscure, non-functional.
Monodelphic, prodelphic, V at 79%, ovary
outstretched with 1-2 rows of oocytes, indistinct oviduct, spermatheca
oval or oblong, sperm cells, crustaformeria and uterus indiscernible
from each other, thick-walled uterus, vagina slightly directed
anteriorly,
PUS length 0.4-0.6 x VBD
Vulva a transverse slit with lips only slightly
protruding.
Male:
- Males common; general morphology similar to that of female.
- Monorchic, outstretched with developing spermatocytes in single row,
- Posterior body end ventrally bent strongly.
- Spicules arcuate, separate, condylus elongated ellipsoidal shape,
rostrum triangular with finely rounded tip, capitulum depression
concave-shaped, lamina smoothly curved to a finely rounded distal end.
- Cloacal apophysis present, short crescentic shape with a short and
blunt dorsal projection
- Seven (one single and three pairs) of genital papillae, arranged as
a single midventral precloacal papilla, first pair 3-5 um anterior to
cloaca, second pair 2-4 um anterior to cloaca, third subventral pair
located near tail tip,
- No bursa or gubernaculum
- Tail cylindrical, tapering towards a slightly elongated pointed tip.
- Ref Gu et al., 2024.
Probably fungivorous on blue-stain (and other) fungi. No insect associates or
galleries observed in logs from which species was decsribed.
Fuchs, A.G. (1937). Neue parasitische und halbparasitische Nematoden bei
Borkenkafern und einige andere Nematoden. I. Teil. Zoologische Jahrbucher,
Abteilung fur Systematik, Oekologie und Geographie der Tiere 70, 291-380.
Gu, J., Castillo, P., Ma, X., Munawar, M. 2024. Unveiling novel and known
Cryptaphelenchus species from China and USA. Nematology 26: 731-752.