. . . . . . . . . "Pterocallis alni" . . "Alnus" . . "Jesse Rorabaugh. 2018. Pterocallis alni eating Alnus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/9748548> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .