/ (ˌsʌbɪˈmeɪɡəʊ) /
noun plural -imagoes or -imagines (-ɪˈmædʒəˌniːz)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for subimago
Perhaps the subimago in this genus of Ephemerids, as in certain others, is the permanent aerial state of the female.
This is what is called the subimago, and precedes the imago or perfect state of the insect.