Cameraria pentekes is a moth of the Gracillariidae family. It is known from British Columbia in Canada, and California and Washington in the United States. The length of the forewings is 3–5 mm. The larvae feed on Quercus douglasii and Quercus lobata. They mine the leaves of their host plant. The mine is oblong to ovoid. The epidermis is opaque to green yellow. Mines are all located to one side of the midrib on the lower half of the leaf. They are found along the leaf margin or the midrib and solitary with some leaves supporting more than one mine, usually with many minute parallel folds, occasionallywith one or two, more or less pronounced.