gall on white oak twig - Disholcaspis quercusglobulus Elk Rock State Park, Lake Red Rock, Marion County, Iowa, USA April 24, 2011 Size: ~3 mm diameter
Close view of cell contained within central chamber of gall.
Images of this individual: tag all Contributed by John Pearson on 24 April, 2011 - 4:23pm Last updated 20 September, 2015 - 1:22am |