Hostname: page-component-cb9f654ff-nr592 Total loading time: 0 Render date: 2025-08-31T09:40:50.643Z Has data issue: false hasContentIssue false
  • English
  • Français

The Columbian Timber Beetle, Corthylus columbianus (Coleoptera: Scolytidae): V. A Description of the Mycetangia1

Published online by Cambridge University Press:  31 May 2012

Ronald L. Giese
Ronald L. Giese
Affiliation:
Department of Entomology, Purdue University, West Lafayette, Indiana
Get access Rights & Permissions [Opens in a new window]

Abstract

The mycetangia of Corthylus columbianus Hopkins are described. These structures lay immediately below the integument of the pronotum, one in each ventrolateral region. Each mycetangium is a coiled tube 4.69 ± 0.35 mm. in length, cream colored, opening into the anterior coxal cavity. Mycetangia occur only in the male beetle and provide the overwintering storage site and transmission mechanism for associated microorganisms. Smears and cultures of the mycetangia were positive for ascospores and vegetative cells of a yeast, Pichia sp., which coincides with the microsymbiote dominant in developmental chambers of the larvae.

Information

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 1 , January 1967 , pp. 54 - 58
Copyright
Copyright © Entomological Society of Canada 1967

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.)

Article purchase

Temporarily unavailable

References

Farris, S. H. 1963. Ambrosia fungus storage in two species of Gnathotrichus Eichhoff (Coleoptera: Scolytidae). Can. Ent. 95: 257–259.CrossRefGoogle Scholar
Farris, S. H., and Funk, A.. 1965. Repositories of symbiotic fungus in the ambrosia beetle Platypus wilsoni Swaine (Coleoptera: Platypodidae). Can. Ent. 97: 527–532.CrossRefGoogle Scholar
Fernando, E. F. W. 1960. Storage and transmission of ambrosia fungus in the adult Xyleborus fornicatus Eich. (Coleoptera: Scolytidae). Ann. Mag. nat. Hist. (1959) (Ser. 13) 2: 475–480.Google Scholar
Finnegan, R. J. 1963. The storage of ambrosia fungus spores by the pitted ambrosia beetle, Corthylus punctatissimus Zimm. (Coleoptera: Scolytidae). Can. Ent. 95: 137–139.Google Scholar
Francke-Grosmann, H. 1956. Hautdrüsen als Träger der Pilzsymbiose bei Ambrosiakäfern. Z. Morph. Ökol. Tiere 45: 275–308.CrossRefGoogle Scholar
Francke-Grosmann, H. 1965. Ein Symbioseorgan bei dem Borkenkäfer Dendroctonus frontalis Zimm. (Coleoptera, Scolytidae). Naturwissenschaften 52: 1–2.CrossRefGoogle Scholar
Giese, R. L. 1966. The bioecology of Corthylus columbianus Hopkins. Material und Organismen. (In press.)Google Scholar
Kabir, A. K. M. F., and Giese, R. L.. 1966a. The Columbian timber beetle, Corthylus columbianus (Coleoptera: Scolytidae). I. Biology of the beetle. Ann. ent. Soc. Amer. 59: 883–894.CrossRefGoogle Scholar
Kabir, A. K. M. F., and Giese, R. L., 1966b. The Columbian timber beetle, Corthylus columbianus (Coleoptera: Scolytidae). II. Fungi and staining associated with the beetle in soft maple. Ann. ent. Soc. Amer. 59: 894–902.CrossRefGoogle Scholar
Leach, J. G. 1940. Insect transmission of plant diseases, 1st ed. McGraw-Hill, New York and London.Google Scholar