Leptotarsus huttoni is a species of crane fly in the family Tipulidae. First described as Macromastix huttoni by Frederick Wallace Edwards in 1923, the species is endemic to New Zealand, living near rotting wood on both the North Island and the South Island.
The species was first described by Frederick Wallace Edwards in 1923 as Macromastix huttoni. In 1968, Nikolas Vladimir Dobrotworsky revised Macromastix, making it a subgenus of Leptotarsus. This led to the current accepted name of the species, Leptotarsus huttoni, or its alternative representation, Leptotarsus (Macromastix) huttoni.
Edwards described the species as follows:
The species is endemic to New Zealand, found on both the North Island and South Island. It tends to live in rotting wood.