. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 4 MELANDER AND BRUES. males, who sit at the doorway, their rounded heads neatly filling out the entrance. When the female returns pollen-laden, the little guard slips into the first side passage while she enters, and then as quickly returns to his post. The incomers are perceived at a distance of half a foot, probably announced by the buzzing of their wings. Even when the little watchers can not see the female coming they dart half way out of their retreat at her ap- proach. With antennae vibrating and mandibles spread the m
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 4 MELANDER AND BRUES. males, who sit at the doorway, their rounded heads neatly filling out the entrance. When the female returns pollen-laden, the little guard slips into the first side passage while she enters, and then as quickly returns to his post. The incomers are perceived at a distance of half a foot, probably announced by the buzzing of their wings. Even when the little watchers can not see the female coming they dart half way out of their retreat at her ap- proach. With antennae vibrating and mandibles spread the males either manifest a joyful greeting for their nest-mates or show an. FIG. 2. Nest of Halictus near Austin, Texas. equal degree of hostility towards any stranger that may venture too near. The most dreaded of the enemies of the Halicti is perhaps the little velvet ant, Mutilla canadensis Blake, which is common nearly everywhere in North America, running about on the nests of these bees, its distribution practically coinciding with that of this species. Perhaps it is the stridulation produced by the ab- domen of these intruders that arouses the ire of the guard at the door, for no sooner does one approach a nest than the watcher, if it be a female, rushes out and pounces upon the JMutilla, en- deavoring to sting it to death. Down the hill-slope they roll, heedless of everything but an inborn desire to annihilate each. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
