Definition of bolas spider
:any of a genus (Mastophora) of spiders that are classified as orb weavers but capture prey by using a sticky droplet at the end of a silky thread
- Field studies have indicated that bolas spiders attract male moth prey, apparently by mimicking the odor of female moth sex pheromones.
- —Mark K. Stowe et al., Science, 22 May 1987
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