Observaciones de ctrubo

Host: Quercus agrifolia.

Host: Quercus agrifolia

Hindwings looked yellow in flight.

On Quercus

Host: scrub oak

Host: scrub oak (https://www.inaturalist.org/observations/175648919)
Midrib of leaf underside.

On thistle.

On Baccharis salicifolia, host specific.
https://www.researchgate.net/figure/The-dietary-specialist-herbivore-Uroleucon-macolai-Blanchard-top-and-the-generalist_fig2_224053198

Host: Baccharis salicifolia

Host: arroyo willow
Observation in for large galls on stem.

Host: Datura wrightii
Covered with their own excrement.

Host: arroyo willow