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