"I suspect that this moth can be assigned to locuples, but the genitalia look neither similar enough to nor different enough from Braun’s illustration to afford a clear diagnosis. For that, I would need to examine additional images or examples of the female genitalia of confirmed locuples, which unfortunately I do not have."

In other news, the Bucculatrix spp. from Ulmus alata and Eupatorium capillifolium are both undescribed.

thank you and great news! I wondered, by "undescribed" do you mean "previously unknown new species" or "previously known species that have not yet been described"?

Also, are there multiple Bucculatrix species from Ulmus alata? I think I had forgotten that.

Although there are probably quite a few undescribed Bucculatrix spp. in North America, unlike Gracillariidae there is not a decades-long backlog of known new species waiting to be described in a big monograph. Braun revised the genus in 1963 and people have described a few new ones since then, as they have been discovered. Terry and I have been working on a paper that will describe a new species Mike Palmer found in Oklahoma, and I think we should be able to add these two to it. I already had you listed as a coauthor in the manuscript because the paper will cover miscellaneous other new records of Bucculatrix rearings from across the US.

There is one described Bucculatrix species that has been associated with elm, but not U. alata specifically. All the moths we have reared from U. alata are the same undescribed species.

Nice to know... Thank you for adding me to the paper!