- Beak of hemipteron
- A millipede
- Mosquito
- Aëdes calopus; larva
- Mosquito
- Normal position of the larvæ of Culex and Anopheles in the water
- A whip-scorpion
- Anopheles quadrimaculatus mosquito
- Argus persicus. Capitulum of male
- A flesh fly
- A true scorpion
- Diagram of a longitudinal section of a mosquito
- Syrian Ants
- Simulium venustum
- An American tarantula
- Louse of the Cat
- Auchmeromyia luteola
- Antennæ of Goniodes