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Psithyrus insularis (Sm.) in a Nest of Bombus ternarius Say (Hymenoptera: Bombidae)

Published online by Cambridge University Press:  31 May 2012

C. H. Craig
C. H. Craig
Affiliation:
Field Crop Insect Section, Laboratory of Entomology, Canada Department of Agriculture, Saskatoon, Sask.
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Extract

Franklin (1913) (p. 448) stated, “There is not vet a single new world account of a Psithyrus having been found in a Bombus nest”. Since then, of the seven North American species, four have been reported found in nests of Bombus spp. by Sladen (1915), Frison (1916, 1921, 1926), Plath (1934), Linsley (1944), and Leech (1947). Of these records only two are from Canada, both being from British Columbia. Sladen (1915) reported finding the well-preserved body of a female of Psithyrus insularis (Sm.) and several cocoons, from one of which he extracted a male of P. insularis, in a nest containing an old queen and several workers of Bombus flavifrons Cress. Leech (1947) found a P. insularis female in a nest containing several workers of Bombus mixtus Cress., and concluded that the iniquiline had supplanted the mixtus queen.

Type
Articles
Information
The Canadian Entomologist , Volume 85 , Issue 8 , August 1953 , pp. 311 - 312
Copyright
Copyright © Entomological Society of Canada 1953

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References

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