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Systematic Parasitology

, Volume 3, Issue 1, pp 33–52 | Cite as

On Artigasia horridospina n.sp., Longior semialata n.sp., Mentecle magnifica n.sp., Paraxyo ensicrinatus n.sp. (Oxyurida: Hystrignathidae) and Pulchrocephala? pulchrocephala Travassos, 1925 (Oxyurida: Pulchrocephalidae)

  • D. J. Hunt
Article

Summary

Four new species of hystrignathid nematodes are described from the midgut caeca of Passalus unicornus (Coleoptera: Passalidae) from St. Lucia, West Indies.

Artigasia horridospina n.sp. is differentiated from A. dispar van Waerebeke, 1973 by virtue of fewer rows of spines in the oesophageal region and in possessing lateral alae, and from A. insignia Travassos & Kloss, 1958 in the extent of the oesophageal spiens and in having the lateral alae commence more anteriorly. The first annule is also much shallower than that of A. insignia.

Longior semialata n.sp. is differentiated from L. longicollis Travassos & Kloss, 1958 on body length, ‘b’ ratio, egg size and the starting point of the lateral alae.

Mentecle magnifica n.sp. differs from M. parvus Travassos & Kloss, 1958 in having the spines of the oesophageal region extending much further down the body and in having ridged eggs. It is also longer and relatively thinner.

Paraxyo ensicrinatus n.sp. differs from P. monodelpho Travassos & Kloss, 1958 in having a proportionately longer tail. The spines in the oesophageal region also extend considerably further posteriorly than in P. monodelpho.

Two ‘types’ of male associated with the above nematodes are described and illustrated, but not assigned to females.

Pulchrocephala? pulchrocephala Travassos, 1925 is redescribed from the gut of the mole-cricket Scapteriscus vicinus.

Scanning electron micrographs of four of the described species are given and briefly discussed. ac]19801024

Keywords

Body Length Electron Micrographs Scan Electron Micrographs Oesophageal Region Midgut Caecum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Kloss G.R. (1959a) Nematóides parasitos de Gryllotalpoidea (Orthoptera). Nota prévia. Atas da Sociedade de Biologia do Rio de Janeiro 3, 9–12.Google Scholar
  2. Kloss G.R. (1959b). Nematóides parasitos de Gryllotalpoidea (Orthoptera) do Brasil. Memorias do Instituto Oswaldo Cruz, 57, 137–170.Google Scholar
  3. Poinar G.O. (1977) CIH key to the groups and genera of nematode parasites of invertebrates. 43 pp. Commonwealth Agricultural Bureaux, U.K.Google Scholar
  4. TravassosL. (1925) Contribução ao conhecimento dos Nematodeos dos Arthropodes. Sciencia Medica, 3, 3–9.Google Scholar
  5. TravassosL. & KlossG.R. (1958) Sobre a fauna de nematodeos dos Coleopteros-Passalidae da estção biologica de Boracéia. Arquivos de Zoologia do Estado de São Paulo, 11, 23–57.Google Scholar
  6. Van WaerebekeD. (1973) Les oxyuroides associés aux Passaliche à Madagascar. Cahiers de l'Office de la Recherche Scientifique et Technique Outre-Mer, Biologie, 18, 3–45.Google Scholar

Copyright information

© Dr W. Junk Publishers 1981

Authors and Affiliations

  • D. J. Hunt
    • 1
  1. 1.Commonwealth Institute of HelminthologySt. AlbansUK

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