About Acericecis ocellaris (Osten Sacken, 1862)
Acericecis ocellaris is a species of gall midge in the family Cecidomyiidae. Its most widespread common name is ocellate gall midge, and it also goes by the common names maple eyespot gall and maple leaf spot gall. This species induces blister-like galls on the leaves of maple trees growing in the Nearctic region. Confirmed host maple species include Acer circinatum, A. pensylvanicum, A. rubrum, A. saccharinum, A. saccharum, and A. spicatum. The species was first described by Carl Robert Osten-Sacken in 1862, originally published under the name Cecidomyia ocellaris. It is the designated type species of the genus Acericecis.
