Unrooted phylogenetic tree based on the maximum-likelihood analysis of AMP-like toxins from Central European myrmicine ants (Myrmica rubra, Myrmica ruginodis and Manica rubida, tribus Myrmicini), and a tropical distantly related species (Tetramorium bicarinatum, tribus Crematogastrini). The sequences formed two distinct clades. The more diverse A-clade (orange) consists of the structural classes IDP and INP. The less diverse B-clade (blue) consists of the structural classes IDR, IDS, IDV, IPP, LSP, and KDS. The phylogeny is based on amino-acid sequence data from mature ant venom peptides.