Which preposition to use with entomologist

at Occurrences 2%

He took them simply for their wonderful beauty and variety; and in the hope, tooin which he was really scientificthat if he carefully kept every form which he saw, his collection might be of use some day to entomologists at home.

in Occurrences 1%

The man to whom you were talking is one of the greatest entomologists in Europe, and must have seen through you at once.

of Occurrences 1%

Truly, Cousin Benedict had that day lost a fine occasion of being able to proclaim himself the happiest entomologist of the five parts of the world.

over Occurrences 1%

Who that knew that pure enthusiast, Dr. Harris, but remembers the accustomed lamentations of the entomologist over the departure of these winged companions of his lifetime?

Which preposition to use with  entomologist