- Poison apparatus of a honey bee
- Piophila casei
- Pigeon tick
- Pharyngeal syringe or salivary pump of Fulgora maculata
- Pediculus vestimenti 2
- Pediculus vestimenti
- Pediculus showing the blind sac (b) containing the mouth parts (a) beneath the alimentary canal (p)
- Pediculoides ventricosus, female
- Otiobius (Ornithodoros) megnini, male. (a) dorsal, (b) ventral aspect
- Otiobius (Ornithodoros) megnini, head of nymph
- Ornithodoros moubata
- Oral and digestive system of Deinacrida megacephala
- On the Watch
- Notœdres cati, male and female
- Newly hatched young of Cimex lectularius
- Newborn Cicada
- Nest of Lasius
- Neglecta Butterfly
- Mygale Hentzii
- Muscina stabulan
- Mouth appendages of cockroach
- Mourning-Cloak Butterfly
- Mosquito
- Mosquito
- Mandible of Scolopendra cingulata showing venom gland
- Lucilia cæsar
- Louse of the Cat
- Longitudinal section of Female Cockroach
- Long-tailed thread scorpion
- Long-armed Tarantel Scorpion
- Locust
- Linguatula. (a) larva; (enlarged). (b) adult; (natural size)
- Life cycle of the malarial parasite
- Lepismas at Work
- Left spiracle of nymph of Argas persicus
- Left hand stigmata of the larvæ of muscoidea
- Leaf-Cutter Bee at Work
- Larva of Xenopsylla cheopis
- Larva of Simulium
- Larva of Pulex irritans
- Larva of Forficula
- Larva of Fannia scalaris
- Larva of Auchmeromyia luteola
- Larva of Anopheles
- Larva of a flesh fly (Sarcophaga) - Caudal aspect - Anterior stigmata. Pharyngeal skeleton
- Ixodes ricinus; male, ventral aspect
- Insect Frame 4
- Insect Frame 3
- Insect Frame 2
- Insect frame
- House-builder Moth
- House spider
- Head of a spider showing poison gland (c) and its relation to the chelicera (a)
- Head and pronotum of (a) dog flea; (b) of cat flea; (c) of hen flea (d) Nycteridiphilus (Ischnopsyllus) hexactenus
- Harvest mites. (Larvæ of Trombidium)
- Harlequin Spider
- Gecko, chasing cockroaches
- Garden spider
- Freshly hatched larva of Julus multistriatus
- Foot of Epeira Vulgaris