Hersilia sagitta

The specific name sagitta is Latin for "arrow, shaft, bolt".

Hersilia sagitta occurs in four African countries: Kenya, Tanzania, Malawi, and South Africa.^[2] In South Africa, the species is recorded from two provinces at altitudes ranging from 93 to 1,148 m above sea level.^[3]

The species inhabits forest areas and is found in Savanna biomes in South Africa. It is a free-living bark dweller that remains cryptic by pressing its body against tree bark substrates.^[3]

Hersilia sagitta is known from both sexes and exhibits the typical characteristics of the genus Hersilia. Like other members of the family Hersiliidae, it possesses extremely long posterior spinnerets and a flattened body form adapted for living on tree bark surfaces.^[3]

This species displays cryptic behaviour, remaining motionless with its body pressed against substrates when at rest. When disturbed, it moves at great speed. The species is typically found in forested environments.^[3]