A scientist who studies insects is an entomologist. An entomologist who specifically studies beetles is a coleopterist.
People who study insects are called entomologists.
Beetles are insects. The study of insects is called "entymology". Thus, scientists who study beetles and other insects are called "entymologists".
coleopterist
An entomologist.
coleopterist
A person who collects beetles is a coleopterist.
normally .you call one .a letterologist.
A catapultist.
onithbfdbvb
A numismatist studies the art and history of coins and coinage. Someone who just collects them is just a collector.
I would call him a hobbyist.
dumb
A button collector??
a hoarder x)
You call someone that studies metal a metallurgist.
A physicist.
Graphologist comes to mind or autograph hunter.