| Pectenosoma angusta Carriker, 1936 |
| Pectenosoma cinnamomea (Carriker, 1944) |
| Pectenosoma meserythra Carriker, 1944 |
| Pectinopygus Mjöberg, 1910 |
| Pectinopygus annulatus (Piaget, 1880) |
| Pectinopygus faralloni (Kellogg, 1896) |
| Pectinopygus fregatiphagus (Eichler, 1943) |
| Pectinopygus occidentalis Thompson, 1948 |
| Pectinopygus sulae (Rudow, 1896) |
| Pectinopygus tordoffi Elbel & Emerson, 1956 |
| Penenirmus Clay & Meinertzhagen, 1938 |
| Penenirmus auritus (Scopoli, 1763) |
| Penenirmus jungens (Kellogg, 1896) |
| Penenirmus quadripustulatus (Kellogg & Mann, 1912) |
| Perineus Thompson, 1936 |
| Perineus concinnus (Kellogg & Chapman, 1899) |
| Philoceanus Kellogg, 1903 |
| Philoceanus becki Kellogg, 1903 |
| Philopteridae Burmeister, 1838 |
| Philopterus Nitzsch, 1818 |