On my website you can query and visualize sizes of various ant species.
If you view the site on desktop (tested on windows 10 with Chrome and Firefox) the ant image should be drawn in the real size. (on mobile and tablet that doesn't work unfortunately).
You can select different castes too (Arbeiterin = worker, Königin = queen, Männchen = male), sort by name, min and max size and you can also filter by name.
The data is from various ant shops. If you have additional data you can post it here.
Edited by Barristan, June 5 2017 - 10:27 AM.