Coastal-scrub
Guides
Trirhabda flavolimbata
Coyote Brush Leaf Beetle
Trirhabda flavolimbata, commonly called the coyote brush leaf beetle, is a skeletonizing leaf beetle in the family Chrysomelidae. It is restricted to California where it inhabits coastal scrublands and chaparral. Both larvae and adults are metallic green and sequester toxins from their host plants, rendering them unpalatable to predators. The species has a single annual brood with a distinctive life cycle involving extended egg diapause.
Trirhabda sericotrachyla
California sagebrush leaf beetle
Trirhabda sericotrachyla is a species of skeletonizing leaf beetle in the family Chrysomelidae, first described by Blake in 1931. It is known from western North America, with records from British Columbia and California. The species is associated with California sagebrush (Artemisia californica) as a host plant, reflecting the genus-wide pattern of specialization on Asteraceae. Like other Trirhabda species, adults feed externally on leaves while larvae skeletonize foliage between the veins.