NATURAL HISTORY AND BEHAVIOR OF THE BOLAS SPIDER MASTOPHORA-DIZZYDEANI NEW-SPECIES ARANEIDAE
NATURAL HISTORY AND BEHAVIOR OF THE BOLAS SPIDER MASTOPHORA-DIZZYDEANI NEW-SPECIES ARANEIDAE
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DOI:
10.1155/1980/81062
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发表时间:
1980-01-01
期刊:
影响因子:
--
通讯作者:
EBERGARD W G
中科院分区:
文献类型:
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作者:
EBERGARD W G
M. dizzydeani sp. nov. is described. The form of the egg sac, variations in bolas construction and hunting technique, and other behaviors link M. dizzydeani to both reduced-orb weavers (Cyrtarachneae) and webless araneids (Celaeneae). The sticky ball is structurally complex and includes both a substantial portion of volatile liquid and a mass of flattened, apparently spring-like thread; it elongates reversibly when it is swung. There was significant variation between individual spiders with respect to the species of moths that they captured. Adult females converted about 35% of the weight of their prey into eggs. They produce an unpleasant odor when handled. Newly emerged spiderlings apparently hunted without making a bolas and preyed on small nematocerous flies. Males did not emerge already mature from egg sacs and it may be that cannibalism within egg sacs accounts for the emergence of mature males in other species.