Blister beetle
Lytta stygica
insectView on iNaturalist
Shiny black beetle with soft, loosely fitting elytra and blister-producing compounds. Bay Area plant pest; causes damage to various crops and flowers.
Plants that support Blister beetle
4 plants
Exserted Indian Paintbrush
Castilleja exserta subsp. exserta
annual
adult pollen and nectar feeding
Bay Area native
Glandular Layia
Layia glandulosa
perennial herb
Adult pollen feeder during spring blooming period
Bay Area native
Star lily
Toxicoscordion fremontii
perennial herb
Adult feeding on foliage and flowers May-Jul
Bay Area native
Tree Poppy
Dendromecon rigida
shrub
Adults feed on Dendromecon foliage during spring emergence
Bay Area native