Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-12-01T04:13:34.388Z Has data issue: false hasContentIssue false
  • English
  • Français

ACTINOCEPHALUS SP., A PROTOZOAN (EUGREGARINIDA: ACTINOCEPHALIDAE) ASSOCIATED WITH JUNE BEETLES, PHYLLOPHAGA HARRIS (COLEOPTERA: SCARABAEIDAE)

Published online by Cambridge University Press:  31 May 2012

T.J. Poprawski  and
W.N. Yule
T.J. Poprawski
Affiliation:
Department of Entomology, Macdonald College of McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec, Canada H9X 1C0
W.N. Yule
Affiliation:
Department of Entomology, Macdonald College of McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec, Canada H9X 1C0
Get access Rights & Permissions [Opens in a new window]

Abstract

Actinocephalus sp., a eugregarine protozoan, is reported from June beetles, Phyllophaga Harris, in southern Quebec. It is the first record of a protozoan infecting scarab beetles in Canada. The gregarine was found in 4.52% of the 16 930 Phyllophaga grubs collected from 45 localities during a 3-year study. The infection was endemic to the grub stage of the scarab beetle and sub-enzootic in grub populations throughout the survey area, never reaching epizootic proportions. Infection rates for other stages of the life cycle of Phyllophaga were insignificant. The study showed that the gregarine had a negligible impact on the population of the host insect.

Résumé

Actinocephalus sp., un protozoaire eugrégarin, est signalé chez les hannetons, Phyllophaga Harris, au Québec méridional. C’est la première mention d’un protozoaire infectant des scarabées au Canada. La grégarine a été trouvée chez 4,52% des 16 930 vers blancs collectionnés dans 45 localités durant 3 années de relevés. L’infection était endémique au stade larvaire du scarabée et sous-enzootique dans les populations de vers blancs à travers la zone de relevés, n’atteignant jamais des dimensions d’épizootie. Les taux d’infection des autres stades de Phyllophaga étaient insignifiants. Cette étude a montré que la grégarine avait un impact négligeable sur la population de l’insecte-hôte.

Type
Articles
Information
The Canadian Entomologist , Volume 124 , Issue 2 , April 1992 , pp. 391 - 396
Copyright
Copyright © Entomological Society of Canada 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Berberet, R.C., and Helms, T.J.. 1969. Two Eugregarina, Gregarina sp. and Actinocephalus sp., associated with the scarab Phyllophaga anxia, as observed in histological sections. J. Invertebr. Pathol. 14: 395–401.Google Scholar
Brooks, W.M. 1974. Protozoan infections. pp. 237–300 in Cantwell, G.E. (Ed.), Insect Diseases. Vol. 1. Marcel Dekker, New York, NY. 300 pp.Google Scholar
Davis, J.J. 1919. Contributions to a knowledge of the natural enemies of Phyllophaga. Ill. Nat. Hist. Surv. Bull. 13: 53–138.CrossRefGoogle Scholar
Forbes, S.A. 1916. A general survey of the May-beetles (Phyllophaga) of Illinois. Ill. Agric. Exp. Stn. Bull. 186: 215–257.Google Scholar
Honigberg, B.M., Balamuth, W., Bovee, E.C., Corliss, J.O., Gojdics, M., Hall, R.P., Kudo, R.R., Levine, N.D., Loeblich, A.R. Jr, Weiser, J., and Wendrich, D.H.. 1964. A revised classification of the phylum Protozoa. J. Protozool. 11: 7–20.CrossRefGoogle ScholarPubMed
Jahn, T.L., and Jahn, F.F.. 1949. How to Know the Protozoa. Wm. C. Brown, Dubuque, IA. 234 pp.Google Scholar
Kudo, R.R. 1966. Protozoology, 5th ed. Thomas, Philadelphia, PA. 1174 pp.Google Scholar
Laird, M. 1959. Gregarines from laboratory colonies of flour beetles, Tribolium castaneum Herbst and T. confusum Duval, at Montreal. Can. J. Zool. 37: 378–381.Google Scholar
Levine, N.D., Corliss, J.O., Cox, F.E.G., Deroux, G., Grain, J., Honiberg, B.M., Leedale, G.F., Loeblich, A.R., Lom, J., Lynn, D., Merinfeld, E.G., Page, F.C., Poljansky, G., Sprague, V., Vavra, J., and Wallace, F.G.. 1980. A newly revised classification of the Protozoa. J. Protozool. 27: 37–38.CrossRefGoogle ScholarPubMed
Poinar, G.O. Jr, and Thomas, G.M.. 1984. Laboratory Guide to Insect Pathogens and Parasites. Plenum Press, New York, NY. 392 pp.Google Scholar
Sleigh, M. 1973. The Biology of Protozoa. Edward Arnold, London, Great Britain. 315 pp.Google Scholar
Steinhaus, E.A. 1949. Principles of Insect Pathology. McGraw-Hill, New York, NY. 757 pp.Google Scholar
Travis, B.V., and Becker, E.R.. 1931. A preliminary report on intestinal Protozoa of white grubs (Phyllophaga spp.—Coleoptera). Iowa State Coll. J. Sci. 5: 223–235.Google Scholar
Weiser, J. 1963. Sporozoan infections. pp. 291–334 in Steinhaus, E.A. (Ed.), Insect Pathology. An Advanced Treatise. Vol. 2. Academic Press, New York, NY. 689 pp.Google Scholar
Weiser, J., and Briggs, J.D.. 1971. Identification of pathogens. pp. 13–66 in Burges, H.D., and Hussey, N.W. (Eds.), Microbial Control of Insects and Mites. Academic Press, New York, NY. 861 pp.Google Scholar