|MadSci Network: Zoology|
There are two different groups of arachnids that are called daddy-long-legs. These are the "true" daddy-long-legs, or harvestmen, in the arachnid order Opiliones (or Phalangida) and the daddy-long-legs spiders in the arachnid order Araneae (spiders), family Pholcidae. Pholcids have venom glands while true daddy-long-legs do not. Thus it is possible to be bitten by a daddy-long-legs spider, but not by a daddy-long-legs. Generally, even this does not occur because daddy-long-legs spiders have very small fangs. References: Levi, H. W., and L. R. Levi. 1968. Spiders and their kin. Golden Press, New York.
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