Title: Keys and Bibliography to the Collembola

Author: J. T. Salmon

Publication details: Victoria University of Wellington, Wellington

Part of: Zoology Publications from Victoria University of Wellington

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page 30

Sub-Family Dicyrtominae Börner, 1906

Key to the Genera of the Dicyrtominae

1.	With a distinct tunica to the claw; Ant. III and Ant. IV not subdivided or annulated but generally with warts or tuberculate out-growths; with or without serrated setae on the dens	Dicyrtomina Börner, 1903 (144)
	Without a tunica to the claw	2
2.	Ant III and Ant. IV not subdivided but with indistinct annulations; antennae generally with warts or tuberculate outgrowths; with or without serrated setae on the dens	Dicyrtoma Bourlet, 1842 (161) =Papirius Lubbock, 1862 (705)
	Ant III or Ant. III and Ant. IV distinctly subdivided; with serrated setae on the dens	3
3.	With a club-like prominence on the dorsal surface; serrated setae of the dens only obscurely serrated near base of each seta	Papiriodes Folsom, 1924 (463)
	Without dorsal prominence; setae of dens distinctly serrated	Ptenothrix Börner, 1906 (147)