Description of two new species in the Ixodes ricinus complex from the New World (Acari: Ixodidae), and redescription of Ixodes affinis Neumann, 1899

NAVA, SANTIAGO; BEATI, LORENZA; VENZAL, JOSE M.; DURDEN, LANCE A.; BERMUDEZ, SERGIO E.; TARRAGONA, EVELINA L.; MANGOLD, ATILIO J.; GLEASON, DEBBIE; MASTROPAOLO, MARIANO; GUGLIELMONE, ALBERTO A.

ZOOTAXA

MAGNOLIA PRESS

Lugar: Auckland; Año: 2023 vol. 5361 p. 53 - 73

1175-5326

Ixodes chacoensis n. sp. is described based on males, females, nymphs and larvae collected from vegetation, ungulatesand passerine birds in northeastern Argentina. Ixodes affinis Neumann, 1899 is redescribed based on the original typespecimens (females) from Leopardus pardalis, and from recently collected specimens from Costa Rica. Ixodes keiransin. sp., previously treated as North American populations of Ixodes affinis, is described based on males and femalesfrom carnivores and ungulates from the southeastern United States. Concatenated total evidence phylogenetics based oncombined DNA sequence analyses from mitochondrial genes (12SrDNA, 16SrDNA and COI) and a nuclear gene (ITS2)corroborate the recognition of these species.