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