Maximum-likelihood phylogenetic tree of the species of Alexeter Förster, 1869 and its morphologically similar genera based on the COI dataset (809 bp; HKY+F+I+G4 in 1–809\3 and 2–809\3, TIM3+F+G4 in 3-809\3), with species delimitation results and clades of Alexeter labeled on the right side of the tree. Taxon name in bold indicated the new species described herein. Branch lengths of the tree are proportional to the inferred number of nucleotide substitutions per site except for the root Ctenopelma nigrum. Circles on the nodes indicate different SH-aLRT/UFBoot values. Nodal support with an SH-aLRT value of < 80% and a UFBoot value of < 95% is not shown. Abbreviations: SH-aLRT, SH-like approximate likelihood ratio test; UFBoot, ultrafast bootstrap approximation; XOR, one or the other but not both; M, male; F, female.

 
 
  Part of: Chen H-P, Huang C-L, Shiao S-F (2025) A taxonomic revision of the genus Alexeter Förster (Hymenoptera, Ichneumonidae, Ctenopelmatinae, Mesoleiini) from Taiwan, with descriptions of six new species. ZooKeys 1250: 315-358. https://doi.org/10.3897/zookeys.1250.156835