Myzaphis van der Goot
This is a genus for several small aphids that feed on roses and Potentilla. It appears that one species is native to North America (M. canadensis), while one is invasive here (M. rosarum). I have collected both of them, the former without photos but in an unexpected place: New Mexico (considering that the original description was from Ontario, Canada).
During 2017 I had the privilege to collaborate with colleagues in Poland and Georgia (the country) on some revisionary work on Myzaphis — my role was small, but my far-flung collecting habits paid off. Maybe some day all my material that was loaned for this project will be returned. This appears, however, to be unlikely.
Kanturski M., S. Barjadze, A.S. Jensen, K. Wieczorek. 2018. A comparative morphological revision of the aphid genus Myzaphis van der Goot, 1913 (Insecta: Hemiptera: Aphididae) revealed a new genus and three new species. PLoS One, 13 (3): e0193775. https://doi.org/10.1371/journal.pone.0193775.
Myzaphis rosarum (Kaltenbach)
This species was probably native to Europe, but is now almost everywhere. I have collected it mostly on cultivated Potentilla fruticosa. I collect very frequently and with determination on this plant, yet have only seen Myzaphis a few times.
