On the Watch
Longitudinal section of Female Cockroach
The Kauri Bug
The Mantis
The Weta, Female
The Weta, Male
Syrian Ants
Simulium venustum
Beak of hemipteron
Auchmeromyia luteola
Argus persicus. Capitulum of male
Anopheles quadrimaculatus mosquito
Mosquito
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
Diagram of a longitudinal section of a mosquito
Louse of the Cat
Antennæ of Goniodes