Paleonura, Cassagnau, 1982

Soto-Adames, Felipe N., 2017, On the genus Paleonura (Collembola: Neanuridae: Neanurinae) from the Americas and description of a new species from Puerto Rico, Zootaxa 4318 (2), pp. 388-394 : 392-393

Key to the species of Paleonura from the Americas and two Eastern Pacific P. spectabilis and P. formosana

1. De area of Abdominal segment IV without any ordinary seta, only the sensorial seta................................ 2

- De area of abdominal segment IV with one to four setae plus the sensorial seta..................................... 3

2. Antennofrontal area with setae ABCD............................................ P. boricana sp. nov. Puerto Rico

- Antennofrontal area with only setae B and D......... P. carayoni Massoud & Thibaud, 1987 ( Guadeloupe, Lesser Antilles)

3. No eyes (or one per side) only one ocular seta......... P. miniseta Massoud & Thibaud, 1987 (Guadeloupe, Lesser Antilles)

- Two eyes per side, with 2 or 3 ocular setae.................................................................. 4

4. Antennofrontal area with only setae B....................... P. insularum ( Carpenter, 1935) (Marquesas Is., Polynesia)

- Antennofrontal area with two or more pairs of setae.......................................................... 5

5. Two ocular setae...................................................................................... 6

- Three ocular setae..................................................................................... 8

6. De tubercle on Thorax II and III with 3 setae and one sensorial setae, cephalic antennofrontal area with seta O..................................................................................... P. formosana ( Yosii, 1965) (Taiwan)

- De tubercle on Thorax II and III with 2 setae and one sensorial setae, cephalic antennofrontal area without seta O........ 7

7. De tubercle on Abd. IV with two setae plus one sensorial seta, 4 pais of setae on the antennofrontal area................................................................................... P. bilinskii Paśnik & Weiner, 2013 (Ecuador)

- De tubercle on Abd. IV with three setae plus one sensorial seta, 2 pais of setae on the antennofrontal area.................................................................................. P. nuda Cassagnau & Oliveira, 1990 (Brasil)

8. Cephalic antennofrontal area with four or five pairs of setae and seta O........................................... 9

- Cephalic antennofrontal area with three pairs of setae, without seta O........................................... 10

9. Cephalic antennofrontal area with four pairs of setae, De on Abd. V with 4 setae...................................................................................... P. petebellingeri Palacios-Vargas & Simón-Benito, 2007 ( USA)

- Cephalic antennofrontal area with five pairs of setae, De on Abd. V with 6 setae....................................................................................................... P. saproxylica Smolis et Kadej, 2014 ( USA)

10. De tubercle on Abd. IV with 4 setae plus the sensorial seta....................... P. spectabilis Cassagnau, 1982 ( Nepal)

- De tubercle on Abd. IV with 3 1 seta plus the sensorial seta................................................... 11

11. Cephalic De tubercle with 3 setae.................................. P. louisi Thibaud & Najt, 1993 (French Polynesia)

- Cephalic De tubercle with 3 setae....................................... P. ili Christiansen & Bellinger, 1992 Hawaii