. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 55, Part 1, 1956. PLATE 1 A pseudoscorpion starting to feed upon an adult flea during a feeding experiment. bola, beetle larvae, and small spiders but displayed little prefer- ence for these. When one hundred pseudoscorpions were offered adult and larval fleas simultaneously, sixty-six per cent chose larval fleas and thirty-four per cent chose adults. When offered adult fleas and mites simultaneously sixty-nine per cent chose the fleas and thirty-o
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 55, Part 1, 1956. PLATE 1 A pseudoscorpion starting to feed upon an adult flea during a feeding experiment. bola, beetle larvae, and small spiders but displayed little prefer- ence for these. When one hundred pseudoscorpions were offered adult and larval fleas simultaneously, sixty-six per cent chose larval fleas and thirty-four per cent chose adults. When offered adult fleas and mites simultaneously sixty-nine per cent chose the fleas and thirty-one per cent chose mites. In preference tests where larval fleas and mites were offered to the pseudoscorpions simultaneously, seventy per cent chose flea larvae while only thirty per cent chose mites. Compiled data of all preference tests show that per cent of all pseudoscorpions chose larval fleas, per cent chose adult fleas, and only per cent chose mites. Ten pseudoscorpions were fed continuously until they would no longer take any food. Fifty-three flea larvae were consumed by the ten in a matter of three-and-one-haff hours. During an- other experiment twenty-four adult fleas were eaten by five pseudoscorpions. The results demonstrate that an average of about five adult or larval fleas can be eaten at one feeding time by a single pseudoscorpion. After twenty-four hours these same pseudoscorpions fed in only a languorous manner, indicating that they were not in any great need of 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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