Squash bee
Peponapis pruinosa
Bee
Solitary ground-nesting native bee that specializes on Cucurbita pollen (squash, pumpkin, gourd) — the canonical wedge-relevant pollinator for the cucurbit vegetable garden. Active at dawn before honeybees + bumblebees, the squash bee delivers most cucurbit pollination across North America. Males sleep inside closed squash flowers; females forage Cucurbita pollen exclusively during the species's short summer flight window. Lifecycle is synchronized with cucurbit bloom — adults emerge in midsummer when squash flowers open and die within weeks.
Plants in the catalog
Specialist host plants · 1
Squash bees (Eucera/Peponapis pruinosa) are specialist pollinators of Cucurbita, foraging the large yellow pumpkin flowers at dawn and often sheltering inside the closing male flowers — a documented oligolectic (pollen-specialist) relationship with this genus.
Plants this species pollinates · 3
Squash bee (Peponapis pruinosa) is the canonical Cucurbita specialist pollinator — active at dawn before honeybees + bumblebees; delivers most cucurbit pollination across North America. Lifecycle is synchronized with cucurbit bloom; planting Cucurbita supports the species directly. Males sleep inside closed squash flowers in late afternoon — a magical wedge-relevant ecology observation visible to home gardeners.
The monoecious yellow cucurbit flowers need insect pollination to set fruit, and squash bees and other bees forage them; NC State Extension Gardener Plant Toolbox lists Cucumis melo as attracting bees and pollinators. Squash bees are cucurbit-flower foragers, so they are a plausible (not source-named) visitor of melon flowers.
Native squash bees (specialists on the gourd family, Cucurbitaceae) are efficient pollen vectors for cucurbit crops including watermelon, which depends on bee visitation to set fruit.
Range
Across the continental United States and Mexico wherever Cucurbita species grow; range has expanded northward following human cultivation of cucurbits.