Automatic partition of COI barcode sequences of Anthidium undulatum s.l. by the Automatic Barcode Gap Discovery (ABGD) program (Puillandre et al. 2012). The number of OTUs automatically defined by ABGD as a function of the prior intraspecific divergence (P) match the number of groups (putative species) defined by the Species ID Tree and the morphometric analysis.

 
 
  Part of: Kasparek M, Boustani M (2025) Genetic and multivariate morphometric analyses unveil cryptic diversity in sympatric populations of the Mediterranean wool carder bee, identified as Anthidium undulatum Dours, 1873 (Hymenoptera: Megachilidae: Anthidiini). Arthropod Systematics & Phylogeny 83: 75-92. https://doi.org/10.3897/asp.83.e137570