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NOTES ON THE MOUTH-PARTS OF BOMBUS

Published online by Cambridge University Press:  31 May 2012

T. D. A. Cockerell  and
John. M'Nary
T. D. A. Cockerell
Affiliation:
E. Las Vegas, N. M.
John. M'Nary
Affiliation:
E. Las Vegas, N. M.
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Extract

We have lately studied the mouth-parts of a number of species of Bombus, both American and European, and adding our results to those obtained by Radoszkowski (1877) we find as follows :-

(1)Taking the first joint of the labial palpus of the ♀ as an index of the length of the mouth-parts (it is especially convenient for accurate measurement), we find that the longest-mouthed species is B. Gerstackeri, from the European Alps (our examples were collected by Friese at Engelberg), a species known to be the exclusive visitor of Aconitum lycoctonumin that region. The Aconitum (Knuth, Blütenbiologie, Vol. II., p. 53, fig.20) has the hood enormously produced, and is adapted only to bees with extremely long tongues.

Type
Articles
Information
The Canadian Entomologist , Volume 34 , Issue 3 , March 1902 , pp. 71 - 72
Copyright
Copyright © Entomological Society of Canada 1902

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