Agrionympha jansella is a species of moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 belonging to the Micropterigidae

Micropterigidae

Micropterigoidea is the superfamily of "mandibulate archaic moths", all placed in the single family Micropterigidae, containing currently about 20 living genera. They are considered the most primitive extant lineage of Lepidoptera ....

 family. It was described by Gibbs in 2011. It is found in South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

, where it is known only from Karkloof Falls in the Eastern Cape.

The length of the forewings is about 3.2 mm for females.

Etymology

The species is named in honour of A.J.T. Janse, who revealed the presence of micropterigids in southern Africa when he collected Agrionympha pseliacma

Agrionympha pseliacma

Agrionympha pseliacma is a species of moth belonging to the family Micropterigidae. It was described by Edward Meyrick in 1921. It is found in South Africa, where it is known only from Karkloof Falls in Kwazulu-Natal....

at the same locality as A. jansella (Karkloof Falls) in 1917.