- The superfamily Thelastomatoidea is comprised of
nematode species that parasitize arthropods.
- The Hystrignathidae is a family of nematodes that are intestinal parasites
of insects, especially Coleoptera, and particularly passalid beetles (bess
- Approximatelu 100 species have been described,
mainly distributed in North and South America, Africa, and Australia
(Adamson & Van Waerebeke 1992;
- The family Hystrignathidae is characterised by
- an esophagus supported anteriorly by cuticularised rods
- elongate eggs often with shells ornamented by ridges of
- presence of at least one median single papilla in males
- Parasitic in the intestine of passalid beetles.
- Approximatelu 100 species have been described, mainly distributed
in North and South America, Africa, and Australia (Adamson & Van Waerebeke
1992; Zhand and Zhand, 2022).
- Most genera are known only on the basis of females, and are
distinguished by being monodelphic or didelphic, the arrangement of cervical
cuticular spines and the arrangement of the first few cuticular annules,the
circumoral and cephalic annules .
Some of the characters are generally not considered very reliable for
Adamson, M.L. and Van Waerebeke, D. 1992. Revision of the
Thelastomatoidea, Oxyurida of invertebrate hosts III . Hystrignathidae.
Systematic Parasitology 22:111-130
Zhang, N., Zhang, L. 2022. Three new genera, two new
species and one new combination of family Hystrignathidae (Nematoda:
Thelastomatoidea) from Ceracupes fronticornis (Westwood) (Insecta: Passalidae)
in China. Research Square: DOI: https://doi.org/10.21203/rs.3.rs-1637079/v1
Want more information about nematodes?
Go to Nemaplex Main Menu.