H
Harold Oldroyd
16 works on record
Works
Collecting, preserving and studying insects
Insects and their world
Insects
Insects in Your Garden
Elements of entomology
The natural history of flies
The natural history of flies
Ladybirds
Ladybirds
The genus Rhipidocephala (Diptera: Asilidae)
The genus Rhipidocephala (Diptera: Asilidae)
Diptera from Nepal
Diptera from Nepal
Diptera: I
Diptera: I
The horse-flies (Diptera: Tabanidae) of the Ethiopian region
The horse-flies (Diptera: Tabanidae) of the Ethiopian region
Diptera
Diptera
Diptera Brachycera
Diptera Brachycera
Flowers
Flowers
The horse-flies (Diptera
The horse-flies (Diptera
Studies of African Asilidae (Diptera)
Studies of African Asilidae (Diptera)