Chrysaster ostensackenella is a moth of the family Gracillariidae. It is known from Ontario, Québec and Nova Scotia in Canada, and the United States (Illinois, Kentucky, New York, Maine, Maryland, Michigan, Vermont, Arizona, Massachusetts, North Carolina and Connecticut).Chrysaster ostensackenella (Fitch, 1859). Global Taxonomic Database of Gracillariidae (Lepidoptera) It has also been recorded in 2015 from China and in 2017 from Korea, and in 2022 from Central Italy.
The wingspan is about 5 mm.mothphotographersgroupmicroleps.org
The larvae feed on Robinia species, including Robinia hispida, Robinia neomexicana, Robinia pseudacacia and Robinia viscosa. They mine the leaves of their host plant.
References
External links Bug Guide