Phylogenetic tree of candidate GmelOBPs with known lepidopteran odorant-binding protein (OBP) sequences. Gmel, Galleria mellonella; Csup, Chilo suppressalis; Ofur, Ostrinia furnacalis; Cmed, Cnaphalocrocis medinalis; Cpun, Conogethes punctiferalis. The clade in green and purple indicates the PBPs and GOBPs, respectively; the Minus-C OBPs subfamily is marked in red and the Plus-C OBPs subfamily is marked in blue; the Classical OBPs subfamily is marked in yellow.