Ichneumon Wasp on a oak leaf

I believe it's an Ichneumon Wasp in the family Ichneumonidae -- superfamily Ichneumonoidea for sure. This is on of leaf of native Coast Live Oak (Quercus agrifolia, Fagaceae) this morning. These are parasitic wasps that lay their eggs on the larvae of other insects, see this photo for an example. (San Marcos Pass, 22 April 2022)

Done