- Palaearctic
- pantropical
- paraphyletic
- paraphysis
- parasite
- parasitoid
- parthenogenesis
- pathogen
- pectinate
- peritreme
- perivulvar
- perivulvar pores
- perpendicular
- petiole
- pheromone
- phloem
- phototaxis
- phylum
- phytophagous
- plates
- polyphagous
- polyphyletic
- polyvoltine
- pore
- poriferous furrow
- posterior
- postsoma
- prepygidium
- prevulvar
- prominence
- prosoma
- prothorax
- proximal
- pupillarial
- pygidial segment
- pygidium
- pyriform