FlyBase:Abbreviations

The current list of species for which FlyBase has some information, which includes the abbreviation used in FlyBase to denote the species, is the organism_list_fb_current.tsv.gz file.

This file is available to download from the "species" subdirectory of the FTP site.

Download the latest file using a query of this form:
wget https://s3ftp.flybase.org/releases/current/precomputed_files/species/organism_list_fb_current.tsv.gz

Documentation of the file format is available here.