Caterpillar webbing on an oak leaf - with the caterpillar
A week ago, I posted this photo showing the webbing of a little caterpillar on a leaf of Coast Live Oak (Quercus agrifolia, Fagaceae). You can't make out the caterpillar in that photo, but here's another shot taken a few days later in which the caterpillar is visible. If you compare the two images, you can see that the caterpillar has eaten more of the top layer of the leaf, and in time it will completely skeletonize it. It's also turned more of the leaf into the frass (poo) which seems to be the roof of its shelter. I don't know what kind of caterpillar it is, but I do know that spiders aren't the only ones - Happy Web Webnesday! (San Marcos Pass, 6 April 2019)
Caterpillar webbing on an oak leaf - with the caterpillar
A week ago, I posted this photo showing the webbing of a little caterpillar on a leaf of Coast Live Oak (Quercus agrifolia, Fagaceae). You can't make out the caterpillar in that photo, but here's another shot taken a few days later in which the caterpillar is visible. If you compare the two images, you can see that the caterpillar has eaten more of the top layer of the leaf, and in time it will completely skeletonize it. It's also turned more of the leaf into the frass (poo) which seems to be the roof of its shelter. I don't know what kind of caterpillar it is, but I do know that spiders aren't the only ones - Happy Web Webnesday! (San Marcos Pass, 6 April 2019)