Phylogenetic relationship of Alena Navás, 1916 (Raphidioptera: Raphidiidae) and its genitalic evolution. Most parsimonious and unique tree (number of steps = 77, consistency index (CI) = 70, retention index (RI) = 73) of equal and implied weight analyses using constant k = 3-10. Character changes are marked on branches, red above = character numbers, and black below = character state. Forward unequivocal changes (black circles) and reversed or multiple changes (white circles) are shown. Bremer values of branch support are presented below nodes in green. Male figures from top to bottom, Al. (Al.) distincta, Al. (Mx.) americana, Al. (Az.) alanae sp. nov., Al. (Az.) michoacana, Al. (Az.) tenochtitlana, and Al. (Az.) caudata. Female figures from top to bottom Al. (Al.) distincta, Al. (Mx.) americana, Al. (Az.) alanae sp. nov., Al. (Az.) horstaspoecki, Al. (Az.) minuta, and Al. (Az.) caudata (Figures modified from H. Aspöck et al. 1991; U. Aspöck et al. 1994b; U. Aspöck et al. 2014; U. Aspöck and Contreras-Ramos 2004; U. Aspöck and H. Aspöck 2013). ab, atrium bursae; gr, glandulae receptaculi; rs, receptaculum seminis; sb, sacculus bursae.

  Part of: Martins CC, Aspöck H, Aspöck U, Contreras-Ramos A (2022) Phylogeny and biogeography of the unique snakefly genus Alena Navás, 1916 (Raphidioptera: Raphidiidae). Arthropod Systematics & Phylogeny 80: 39-58.