Are there two? Is "medium" a useful category? I've also heard people talk about C. pennsylvanicus "supermajors", which seems like a sub-category of major -- is "medium" more like a subcategory of unusually large minors or is it a meaningful distinction? Photo comparisons of the castes would also be really ideal!
(I am an artist and I am making a series of art prints on local insects in my area! I'd like to display as much of the variation within each single species as I can, so I'm hoping to draw an example of a each worker caste along with an an alate and a queen for both of these species.
![:)](https://www.formiculture.com/public/style_emoticons/default/smile.gif)