Taxa included

Gardini, G. (2021). The Italian species of the Chthonius ischnocheles group (Arachnida, Pseudoscorpiones, Chthoniidae), with reference to neighbouring countries. Zootaxa 4987: 1‒131.

Taxon
Chthonius agazzii Beier, 1966 (Pseudoscorpiones: Chthoniidae) 6–11, figs 1–25, 402, Chthonius agazzii Beier
Chthonius alpicola Beier, 1951 (Pseudoscorpiones: Chthoniidae) 11–15, figs 26–40, 403, Chthonius alpicola Beier
Chthonius caoduroi Callaini, 1987 (Pseudoscorpiones: Chthoniidae) 15–16, figs 41–48, 410, Chthonius caoduroi Callaini
Chthonius caprai Gardini, 1977 (Pseudoscorpiones: Chthoniidae) 19–21, figs 49–59, 411, Chthonius caprai Gardini
Chthonius carinthiacus Beier, 1951 (Pseudoscorpiones: Chthoniidae) 22–26, figs 60–76, 404, Chthonius carinthiacus Beier
Chthonius comottii Inzaghi, 1987 (Pseudoscorpiones: Chthoniidae) 27–31, figs 77–96, 402, Chthonius comottii Inzaghi
Chthonius densedentatus Beier, 1938 (Pseudoscorpiones: Chthoniidae) 31–42, figs 97–116, 406, Chthonius densedentatus Beier
Chthonius euganeus Gardini, 1991 (Pseudoscorpiones: Chthoniidae) 42–43, figs 117–126, 409, Chthonius euganeus Gardini
Chthonius gallettii Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 45–48, figs 127–134, 410, Chthonius gallettii Gardini
Chthonius gentianae Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 48–49, figs 135–142, 409, Chthonius gentianae Gardini
Chthonius guglielmii Callaini, 1986 (Pseudoscorpiones: Chthoniidae) 51–56, figs 143–157, 405, Chthonius guglielmii Callaini
Chthonius halberti Kew, 1916 (Pseudoscorpiones: Chthoniidae) 57–60, figs 158–172, 412, Chthonius halberti
Chthonius herminii Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 60–62, figs 173–187, 409, Chthonius herminii Gardini
Chthonius horridus Beier, 1934 (Pseudoscorpiones: Chthoniidae) 63–68, figs 188–211, 413, Chthonius horridus Beier
Chthonius ilvensis Beier, 1963 (Pseudoscorpiones: Chthoniidae) 68–72, figs 212–228, 405, Chthonius ilvensis Beier
Chthonius inguscioi Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 72–75, figs 229–236, 410, Chthonius inguscioi Gardini
Chthonius ischnocheles (Hermann, 1804) (Pseudoscorpiones: Chthoniidae) 75–88, figs 237–265, 407, Chthonius ischnocheles (Hermann)
Chthonius italicus Beier, 1930 (Pseudoscorpiones: Chthoniidae) 88–91, figs 266–281, 413, Chthonius italicus Beier
Chthonius jonicus Beier, 1931 (Pseudoscorpiones: Chthoniidae) 91–95, figs 282–296, 411, Chthonius jonicus Beier
Chthonius lanai Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 95–98, figs 297–308, 413, Chthonius lanai Gardini
Chthonius leoi (Callaini, 1988) (Pseudoscorpiones: Chthoniidae) 98–99, figs 309–311, 411, Chthonius leoi (Callaini)
Chthonius marciai Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 100–102, figs 312–319, 410, Chthonius marciai Gardini
Chthonius multidentatus Beier, 1963 (Pseudoscorpiones: Chthoniidae) 102–103, figs 320–334, 410, Chthonius multidentatus Beier
Chthonius nicolosii Gardini, 2021 (Pseudoscorpiones: Chthoniidae) 105–108, figs 335–349, 412, Chthonius nicolosii Gardini
Chthonius paolettii Beier, 1973 (Pseudoscorpiones: Chthoniidae) 108–111, figs 350–357, 409, Chthonius paolettii Beier
Chthonius pygmaeus Beier, 1934 (Pseudoscorpiones: Chthoniidae) 111–115, figs 358–372, 408, Chthonius pygmaeus Beier
Chthonius ressli Beier, 1956 (Pseudoscorpiones: Chthoniidae) 116–120, figs 373–386, 412, Chthonius ressli Beier
Chthonius stammeri Beier, 1942 (Pseudoscorpiones: Chthoniidae) 120–123, figs 387–401, 412, Chthonius stammeri Beier