Physical Setting
Climate
Adaptations
Tucson Plants
Tucson Animals
External Resources
Physical Setting
Climate
Adaptations
Tucson Plants
Tucson Animals
External Resources

AnimalsVenomous AnimalsArthropodsFishAmphibiansReptilesBirdsMammals

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Cloudless Sulphur (Phoebis sennae)
cloudless sulphurDESCRIPTION: WS=1.8-2.5" (48-66mm). Upper surface is clear yellow in male and either clear yellow or white in female; lower surface has 2 pink-rimmed silver spots in center of hindwing in both sexes. Females have hollow, black cell spot in forewing.
Family Pieridae, Subfamily Coliadinae
NATURAL HISTORY: This is the most common large sulphur seen in this region. Adults seen March to January but are most commonly seen during the monsoon summer and fall. Caterpillars feed on Cassias.

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