Nearctic Pachyotominae
Creators: name: Palacios-Vargas, José G.
name: Arbea, Javier I.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Nearctic

description: Key to the Nearctic Pachyotominae with granulated integument
1. Furcula in the form of two mounds. Pigment, eyes and tenaculum absent................................................................................ Paranurophorus simplex Denis, 1929 (Holarctic, also known from Australia)
- Furcula usually not so reduced. Pigment, eyes and tenaculum present............................................ 2
2. Furcula reduced; mucro absent............................................................................... Coloburella octogenaria (Mills & Schmidt, 1957) (USA: Illinois, Tennessee; Canada: Vancouver I.; Mexico: Veracruz)
- Furcula varying in length; mucro usually separate from dens.................................................. 3
3. Dens without anterior setae..... Bonetrura boneti (Yosii, 1962) (USA: Louisiana, West Virginia; Mexico: Puebla, Veracruz)
- Dens with anterior setae................................................................... 4 (Pachyotoma)
4. 7 or less anterior setae on dens.......................................................................... 5
- 8 or more anterior setae on dens......................................................................... 9
5. 1 anterior seta on dens.................................... P. vernoga (Wray, 1958) (USA: North Carolina, Indiana)
- 4–7 anterior setae on dens.............................................................................. 6
6. Manubrium with 1+1 anterior setae.................................................................................................. P. muskegis (Guthrie, 1903) (USA: Minnesota; Canada: Ontario; Mexico: Jalisco; Panama)
- Manubrium without anterior setae........................................................................ 7
7. PAO shorter than nearest eye......................................... P. primamexicana sp. nov. (Mexico: Puebla)
- PAO longer than nearest eye............................................................................ 8
8. Tibiotarsi I – III with 1,2,2 acuminate or slightly clavate tenent hairs...................................................................................... P. alpa (Christiansen & Bellinger, 1980) (USA: New Hampshire, Vermont)
- Tibiotarsi with 2–3 clavate tenent hairs............ P. vetusta (Folsom, 1937) (USA: California, New Mexico, Minnesota)
9. More than 40 anterior setae on the dens; manubrium with 2+2 anterior setae; furcula long, almost reaching VT............................................................................ P. crassicauda (Tullberg, 1871) (Holarctic)
- No more than 10 anterior setae on the dens; manubrium without anterior setae; furcula shorter......................................................................... P. antiqua (Folsom, 1937) (USA: Missouri, Utah, West Virginia)
description: Published as part of Palacios-Vargas, José G. & Arbea, Javier I., 2022, The subfamily Pachyotominae in Mexico (Collembola: Isotomidae) with description of a new Pachyotoma species, pp. 245-259 in Zootaxa 5194 (2) on page 258, DOI: 10.11646/zootaxa.5194.2.6, http://zenodo.org/record/7147359