Arrhopalites

Zeppelini, Douglas, 2006, The genus Arrhopalites Börner, 1906 (Collembola, Appendiciphora, Arrhopalitidae) in the Neotropical Region, with description of four new cave species from Brazil, Zootaxa 1124, pp. 1-40 : 37-38

Key for identification of neotropical Arrhopalites

1 Anal valve cuticular spines absent ................................................................................ 2

­ Anal valve cuticular spines present............................................................................... 8

2 Ant IV not subdivided, all unguis with a filamentous inner tooth................ A. diversus

­ Ant IV subdivided, inner teeth not filamentous when present ..................................... 3

3 Ant IV subdivided into 5 subsegments ......................................................................... 4

­ Ant IV subdivided into 6 or more subsegments............................................................ 7

4 Ant III basal swelling present........................................................................................ 5

­ Ant III basal swelling absent......................................................................................... 6

5 Female subanal appendages spoon shaped with fringed edges ( 4 d)............ A. plectrifer

­ Female subanal appendages a simple rod withfringed apex ( 14 a)................... A. dubius

6 Female subanal appendages branche or deeply serrated ( 5 c)......................... A. benitus

­ Female subanal appendages simple rod with fringed apex ( 1 ad)................ A. pygmaeus

7 Ant IV subdivided into 6 subsegments, eyes 1 + 1........................................... A. amarus

­ Ant IV subdivided into 7 subsegments, eyes 2 + 2....................................... A. bellingeri

8 Eyes 2 + 2....................................................................................................................... 9

­ Eyes 1 + 1..................................................................................................................... 10

9 Ant IV subdivided into 4 ringed subsegments, anal valve C 1 lamelate........ A. amorimi

­ Ant IV subdivided into 6 ringed subsegments, C 1 swollen basally...................................................................................................................................... A. heteroculatus sp.n.

10 Ant IV not subdivided. ............................................................................................... 11

­ Ant IV subdivided ....................................................................................................... 14

11 Dental id 3 present, medial ve 1 spinelike. .................................................................. 12

­ Dental id 3 absent, ve 1 normal..................................................................................... 13

12 Anal valve C 3 –C 6 lamellate, all ungues with tunica and inner tooth.............. A. caecus

­ C 3 –C 6 swollen basally, first unguis without inner tooth, tunica absent............ A. millsi

13 Anal valve upper flap with 4 cuticular spines (s0 absent), tunica absent........ A. harveyi

­ anal valve upper flap with 5 spines (s0 present), tunica present. A. alambariensis sp.n.

14 Ant IV subdivided into 5 ringed subsegments ........................................................... 15

­ Ant IV subdivided into 6 ringed subsegments ............................................................ 16

15 Anal valve C 1 lamellate, first unguis without tunica................... A. botuveraensis sp.n.

­ Anal valve C 1 swollen basally, all unguis with tunica............................... A. vazquezae

16 Tunica absent, anal valve C 1 swollen basally............................................. A. lawrencei

­ Tunica present, anal valve C 1 lamellate...................................................................... 17

17 Cephalic setae M 3–5 not spinelike, dental E 4–5 spinelike, third unguiculus without apical filament.............................................................................................. A. gnaspinii

­ Cephalic M 3–5 spinelike, dental E 4–5 normal, third unguiculus with short apical fila­ ment not exceeding theunguis tip................................................... A. paranaensis sp.n.