Key to females of Pachyphloea species

1. Vertex is spinose with foliaceous extensions................................................................ 2

- Vertex is not spinose, presenting only small tubercles........................................ P. papallacta n. comb.

2. Mesonotum with two conspicuous anterolateral spines......................................... P. punana n. comb.

- Mesonotum without anterolateral spines................................................................... 3

3. Tergites V–VII without foliaceous extensions, pronotum armed with small tubercles or spines albeit never presenting a conspicuous foliaceous extension........................................................................... 4

- Tergites V–VII with foliaceous extensions, pronotum with two adjacent foliaceous extensions on its posterior discus border....................................................................................... P. magnoliae n. sp.

4. Presence of foliaceous extensions on the posterior margin of legs, pronotum armed with small tubercles................................................................................................... P. grylloides n. comb.

- Absence of foliaceous extensions on legs, pronotum armed with spines................................... P. aberrans