Subimago \Sub`i*ma"go\, n. [NL. See {Sub-}, and {Imago}.]
(Zool.)
A stage in the development of certain insects, such as the
May flies, intermediate between the pupa and imago. In this
stage, the insect is able to fly, but subsequently sheds a
skin before becoming mature. Called also {pseudimago}.
[1913 Webster]