Fordini
Guides
Melaphis asafitchi
Melaphis asafitchi is a North American aphid species in the subtribe Melaphidina, described in 2018 following molecular and morphometric analysis that revealed cryptic species diversity within what was previously considered Melaphis rhois. It is one of at least three sympatric cryptic melaphidine species on the continent. The species exhibits ovoviviparity in sexual females, a notable reproductive trait among aphids.
Pemphigus
Poplar Leaf-stem Gall Aphids
Pemphigus is a genus of gall-forming aphids in the family Aphididae, commonly known as poplar leaf-stem gall aphids. Species in this genus are specialized herbivores that induce distinctive galls on poplar (Populus) and related host plants. The genus is notable for its complex life cycles involving alternation between primary woody hosts and secondary herbaceous hosts, with some species remaining entirely on roots of secondary hosts. Pemphigus species are frequently confused with other root-feeding aphids in agricultural and horticultural contexts.