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How do spider pedipalps function in feeding and reproduction?

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A spiny lobster (Palinurus elephas) with long, striped antennae and spiny body stands on sandy ground near a rocky crevice underwater. — arthropod Spiny lobster, or rock lobster (*Palinurus elephas*).

In spiders, the pedipalps are the second pair of appendages and serve distinct roles in feeding and reproduction depending on the spider's sex and maturity.1

Feeding

In females and immature males, pedipalps are leglike and function as sensory organs to help the spider navigate its environment. For feeding, the basal segment (coxa) of each pedipalp is modified into a structure called an endite, which is utilized during the consumption of prey.1

Reproduction

The role of pedipalps in reproduction is highly specialized in adult males:
* Sperm Induction: Males construct a "sperm web" and deposit fluid containing sperm from their abdomen onto it. They then draw this sperm into their pedipalps, which are modified to act as complex copulatory organs.2
* Courtship: During mating rituals, males may use their pedipalps to communicate. For example, male jumping spiders and wolf spiders wave their pedipalps to convey species-specific visual signals to females.2
* Copulation: The pedipalps serve as the primary organs for transferring sperm to the female.12