I continue to support the idea of a separate d/b for insects, and i mean separate and not connected to the plant files in any way as dirtdorphin suggests. Already we have material for it from the Bugs ID forum although i don't know how far back in time that forum goes.
If i understand
@Calif_Sue correctly, there is a main thumbnail image for each gallery of each plant on the database although i have not found evidence of this when viewing d/b photos. Maybe adding a "pollenators" gallery would be sufficient.
I have never known about how thumbs affect the d/b and the process appears overly complicated. It is also subject to corruption and manipulation in terms of the placement of an image. Why anyone would bother to do this is beyond my ability to understand. I think the d/b should be simplified and the use of thumbs should discontinue as a criterion for the placement of images. Perhaps it could be replaced by a simple rotation. Perhaps it can just be discontinued. Anyone visiting the d/b can clearly view the gallery of photos and choose which ones to select for closer inspection.