. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 82 Bulletin Museum of Comparative Zoology, Vol. 144, No. 3. Figure 4. Exchange of nectar. The queen (right) is soliciting nectar from o forager. Note the position of the solicitor s antennae against the genae of the forager. tion of its location to I placed droplets of blue-colored sugar solution on the flowers of Clidemia hiiia, which a marked forager was visiting for nectar. After discovering the solution the wasp made six consecutive trips in an hour and a half to the same site, stocking up on the sugar
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 82 Bulletin Museum of Comparative Zoology, Vol. 144, No. 3. Figure 4. Exchange of nectar. The queen (right) is soliciting nectar from o forager. Note the position of the solicitor s antennae against the genae of the forager. tion of its location to I placed droplets of blue-colored sugar solution on the flowers of Clidemia hiiia, which a marked forager was visiting for nectar. After discovering the solution the wasp made six consecutive trips in an hour and a half to the same site, stocking up on the sugar sokition each time. During this time no other wasp visited the source. Three days later I repeated the experiment with another wasp from the same colony. In slightly over 3 hours she returned 20 times to the source. An interesting incident oc- curred when another wasp of the same colony landed near the forager while the latter was stocking up on sugar solution. The forager responded by chasing her nest- mate from the plant, hardly an act of cooperation for the good of the colony. 2. Distribution of Nectar to Adults on the Nest It was rarely possible to determine whether a forager brought nectar or was returning empty. If, upon landing on the nest a forager was either immediately solicited from by her nestmates or went to the larvae, it was assumed that she had brought nectar. This was precisely the be- havior of foragers for whom colored sugar solution was provided in the field, as de- scribed above; that they were yielding it up to both adults and larvae at the nest was confirmed by residues of the colored. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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