Hostname: page-component-7bb8b95d7b-cx56b Total loading time: 0 Render date: 2024-10-06T15:12:28.222Z Has data issue: false hasContentIssue false
  • English
  • Français

OBSERVATIONS ON LARVAL BEHAVIOUR AND AVOIDANCE OF ENCAPSULATION OF PERILAMPUS HYALINUS (HYMENOPTERA: PERILAMPIDAE) PARASITIC IN NEODIPRION LECONTEI (HYMENOPTERA: DIPRIONIDAE)

Published online by Cambridge University Press:  31 May 2012

C. F. Hinks
C. F. Hinks
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa
Get access Rights & Permissions [Opens in a new window]

Abstract

Dissection of 400 diapausing eonymphs of Neodiprion lecontei (Fitch) yielded 149 live planidia larvae of Perilampus hyalinus Say. Of these 87% were embedded in the brain and in the ganglia of the ventral cord, and the remainder in various other internal organs, including the malpighian tubes and silk glands. Numerous encapsulated planidia were found in the haemocoel. To avoid encapsulation in this host, planidia of P. hyalinus must enter an internal organ. Resumption of development of N. lecontei stimulates the emergence of surviving planidia, which commence feeding as ectoparasites. During the second instar, feeding is suspended while the parasite larvae search the body of the host for competitors and destroy them.

Some of the eonymphs examined contained larvae of the tachinid Spathimeigenia sp. in addition to planidia. None of these planidia survived, nor did they become hyperparasitic.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 2 , February 1971 , pp. 182 - 187
Copyright
Copyright © Entomological Society of Canada 1971

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

Bergold, G. and Ripper, W.. 1937. Perilampus tristis Mayr. als Hyperparasit des Kieferntrieb wicklers (Rhyacionia buoliana Schiff.). Z. Parasitenk. 9: 394–417.CrossRefGoogle Scholar
Brown, A. W. A. 1938. In 68th Ann. Rep. ent. Soc. Ont., p. 17.Google Scholar
Clausen, C. P. 1940. In Entomophagous insects. McGraw-Hill, New York and London.Google Scholar
Peck, O. 1963. A catalogue of the Nearctic Chalcidoidea (Insecta: Hymenoptera). Can. ent. Suppl. 30.Google Scholar
Smith, H. S. 1912. In Technical results from the Gipsy Moth Parasite Laboratory. IV: The chalcidoid genus Perilampus and its relation to the problem of parasite introduction. U.S. Bur. Ent. Bull., Tech. Ser. No. 19, pp. 32–69.Google Scholar
Thompson, W. R. 1915. Contribution à la connaissance de la larve planidium. Bull. Sci. Fr. Belg. 48: 319–349.Google Scholar
Tripp, H. A. 1962. The biology of Perilampus hyalinus Say (Hymenoptera: Perilampidae), a primary parasite of Neodiprion swainei Midd. (Hymenoptera: Diprionidae) in Quebec, with descriptions of the eggs and larval stages. Can. Ent. 94: 1250–1270.CrossRefGoogle Scholar