Stigmella longisacca
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Nepticulidae
Genus:	Stigmella
Species:	S. longisacca
Binomial name
Stigmella longisacca Newton & Wilkinson, 1982

Stigmella longisacca is a moth of the family Nepticulidae. It is found in California, United States.

The wingspan is 3.2-4.4 mm. There are two and possibly three generations per year.

The larvae feed on Juglans species, including Juglans californica. They mine the leaves of their host plant.

• A taxonomic revision of the North American species of Stigmella (Lepidoptera: Nepticulidae)