Table 1 in Two new species in the Resartor-group (Phthiraptera: Ischnocera) complicate and simplify genus limits

Table 1. Selected structural characters variable among the four genera in the Resartor -group. Data derived from Najer et al. (2012), Gustafsson & Bush (2017), Mey (2017), Gustafsson et al. (2018, 2019a, 2022, 2024), and specimens examined here. CharacterAratricerca Gustafsson & Bush, 2017Resartor Gustafsson & Bush, 2017Timalinirmus Mey, 2017Turdinirmoides Gustafsson & Bush, 2017Pterothorax near-hexagonalYesNoNoNoSternite II thickenedYesNoNoNoMale sternite VII fused to subgenital plateNoYesYesNoSternal setae on male abdominal segment VIIYesNoNoYesFemale subgenital plate fused to cross-pieceCross-piece absentYesVariable?NoDistal male abdomen extended into triangular tailYesNoNoNoFemale tergopleurites IX-XI fusedNoYesYesYes