| Kingdom: Animalia |
| Phylum: Arthropoda |
| Subphylum: Hexapoda |
| Class: Insecta |
| Infraclass: Neoptera |
| Subclass: Pterygota |
| Order: Hemiptera |
| Suborder: Sternorrhyncha |
| Superfamily: Aphidoidea |
| Family: Aphididae |
| Subfamily: Eriosomatinae |
| Tribe: Pemphigini |
| Genus: Pemphigus |
| Subject: Pemphigus spyrothecae Passerini, 1860 |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Dilleniidae |
| Order: Salicales |
| Family: Salicaceae |
| Genus: Populus |
| Subject: Populus spp. L. |