Files with "RefSeq" in the file name were downloaded from NCBI (https://ftp.ncbi.nlm.nih.gov/genomes/refseq/invertebrate/) and the AR number indicates the RefSeq annotation release. The file for Melipona quadrifasciata was downloaded from GenBank (https://ftp.ncbi.nlm.nih.gov/genomes/genbank/invertebrate/). The files for Cardiocondyla obscurior and Lasioglossum albipes are from Official Gene Sets. The definition lines for all sequences were reformatted to show the protein id, gene id and transcript id, in that order.