Alfred Keller was a museum artist who created large models of insects and other small animals; these models are unique for their impressive attention to detail.
Keller was employed at the Museum für Naturkunde in Berlin, Germany from 1930 until his death in 1955, and his sculptures can still be found there. He worked with papier-mâché and several other materials such as celluloid and galalith to create models of insects including a flea, a housefly, a mosquito in flight, a Colorado potato beetle, and a ball bearer leafhopper, among others. The housefly, typical of the painstaking attention to detail shown in Keller's sculptures, includes 2,653 bristles. Each model took about a year to complete.