Atelomastix, Attems, 1911

Edward, Karen L. & Harvey, Mark S., 2010, A review of the Australian millipede genus Atelomastix (Diplopoda: Spirostreptida: Iulomorphidae) 2371, Zootaxa 2371 (1), pp. 1-63 : 7-8

Key to species of Atelomastix (based solely upon males)

Remarks: It has not been possible to include A. solitaria in this key due to the lack of illustrations of the anterior gonopods at an appropriate angle ( Jeekel 2009).

1. Sclerite c bifurcate, with either deep bifurcation (e.g. Figs. 79, 95, 99, 111, 117, 129, 136) or with small distal teeth (e.g. Figs. 106, 107) ...................................................................................................................................................... 2

- Sclerite c not bifurcate (e.g. Figs. 90, 92, 105) ........................................................................................................... 17

2. Sclerite c with minute distal bifurcation ( Figs. 106, 107)................................................................. A. lengae , sp. nov.

- Sclerite c with medium to large bifurcation (e.g. Figs. 75, 78, 113, 135)..................................................................... 3

3. Sclerite a with large externobasal flange ( Figs. 87, 114, 120, 135); sclerite b slender with 0–1 setae on distal margin ( Figs. 88, 115, 121, 136) ............................................................................................................................................... 4

- Sclerite a without large externobasal flange ( Figs. 75, 77, 79, 94, 98, 110, 112, 116, 122, 128); sclerite b thick with at least 2 setae on distal margin ( Figs. 76, 78, 80, 95, 99, 111, 113, 117, 123, 129) ....................................................... 7

4. Basal process of sclerite c deeply indented ( Fig. 136)...................................................................... A. tumula , sp. nov.

- Basal process of sclerite c shallowly indented ( Figs. 88, 121, 115) ............................................................................. 5

5. Sclerite b tapering to thin pointed tip ( Fig. 115)............................................................................ A. montana , sp. nov.

- Sclerite b with rounded tip ( Figs. 88, 121, 136) ........................................................................................................... 6

6. Sclerite b without setae ( Figs. 87, 88); medial edge of sclerite c broad and medial process of distal bifurcation relatively short ( Fig. 88) ......................................................................................................................... A. danksi , sp. nov.

- Sclerite b with 1 seta ( Fig. 121); medial edge of sclerite c narrow and medial process of distal bifurcation relatively long ( Figs. 120, 121) ....................................................................................................................... A. poustiei , sp. nov.

7. Sclerite c with basal bifurcation ( Figs. 75, 98, 122, 128) ............................................................................................. 8

- Sclerite c with medial or distal bifurcation (e.g. Figs. 77, 79, 94, 113) ...................................................................... 12

8. Sclerite c with lateral process much smaller than medial process ( Figs. 128, 129)........................................................ ................................................................................................................................................. A. rubricephala , sp. nov.

- Sclerite c with lateral process larger than medial process ( Figs. 75, 98, 122) .............................................................. 9

9. Distal edge of sclerite b deeply serrated ( Fig. 123) .......................................................................... A. priona , sp. nov.

- Distal edge of sclerite b smooth or only slightly irregular ( Figs. 76, 99) ................................................................... 10

10. Basal process of sclerite c large and distally acute ( Figs. 75, 98)............................................................................... 11

- Basal process of sclerite c low and distally rounded ( Fig. 83) ..................................................... A. brennani , sp. nov.

11. Distal tip of sclerite b narrowed to fine point ( Fig. 76); medial process of sclerite c relatively narrow, with most setae present towards distal end ( Figs. 75, 76) .................................................................................. A. albanyensis Attems

- Distal tip of sclerite b not narrowed to fine point ( Fig. 99); medial process of sclerite c large and broad, with most setae present basally ( Fig. 99)....................................................................................................... A. francesae , sp. nov.

12. Sclerite c with distal bifurcation ( Figs. 77, 94, 112)................................................................................................... 13

- Sclerite c with medial bifurcation ( Figs. 80, 111, 117) ............................................................................................... 15

13. Distal hood of sclerite a broad ( Figs. 78, 113); pseudoflagellum orientated horizontally, in line with distal edge of sclerite b ( Figs. 78, 113); sclerite b with enlarged rounded sub-distal edge, tapering gently to tip ( Figs. 78, 113) ... 14

- Distal hood of sclerite a short, exposing entire pseudoflagellum, which is orientated vertically in line with neck of sclerite a ( Figs. 94, 95); sclerite b elongate, and curved downwards without an enlarged rounded sub-distal edge ( Figs. 94, 95) ............................................................................................................................. A. flavognatha , sp. nov.

14. Distal tip of sclerite c generally with small, shallow bifurcation, slightly asymmetrical with angular edges ( Figs. 112, 113) ................................................................................................................................................ A. melindae , sp. nov

- Distal tip of sclerite c with asymmetrical tip and shallow bifurcation, medial process noticeably longer than lateral process ( Figs. 77, 78) ..................................................................................................................... A. anancita , sp. nov.

15. Distal end of sclerite c oriented anteriorly ( Figs. 80, 111).......................................................................................... 16

- Distal end of sclerite c oriented medially ( Fig. 117) ..................................................................... A. nigrescens Attems

16. Sclerite c with asymmetrical bifurcation, lateral process longer than medial process ( Figs. 110, 111); basal process of sclerite b with rounded tip ( Figs. 110, 111) ...................................................................................... A. mainae , sp. nov.

- Sclerite c with symmetrical bifurcation ( Fig. 79); basal process of sclerite b elongate with pointed tip ( Figs. 79, 80). ........................................................................................................................................................... A. attemsi , sp. nov.

17. Sclerite b relatively straight and thin, not curved around towards sclerite c ( Figs. 92, 93); distal hood of sclerite a very small, not extending past end of pseudoflagellum, which is entirely exposed ( Figs. 92, 93) .. A. ellenae , sp. nov.

- Sclerite b curved sub-distally toward sclerite c (e.g. Figs. 82, 131, 133); distal hood of sclerite a curved over pseudoflagellum (e.g. Figs. 82, 131, 133) ............................................................................................................................ 18

18. Sclerite b broadened distally to form an enlarged wedge-shape ( Fig. 101); sclerite c short, broad, and slightly indented near distal end ( Figs. 100, 101) .......................................................................................... A. gibsoni , sp. nov.

- Sclerite b broad basally, curving sub-distally to form hooked distal tip (e.g. Figs. 82, 90, 105, 109, 133); sclerite c longer ( Figs. 81, 89, 104, 108, 132)............................................................................................................................ 19

19. Colour of trunk segments dark with yellow orange bands (e.g. Fig. 3 )...................................................................... 20

- Colour of trunk segments uniform, without bands ..................................................................................................... 21

20. Sclerite b with angular distal tip which does not extend to tip of sclerite c, basal process very long and thin with sharp point ( Figs. 132, 133); distal hood of sclerite a broad, extending to tip of sclerite b ( Figs. 132, 133) ................. ........................................................................................................................................................... A. tigrina , sp. nov.

- Sclerite b with broad rounded tip that extends to tip of sclerite c, basal process longer than wide, but with rounded tip ( Figs. 104, 105); distal hood of sclerite a does not extend to distal tip of sclerite b ( Figs. 104, 105)............................ ..................................................................................................................................................... A. julianneae , sp. nov.

21. Sclerite c curved ( Figs. 90, 131) ................................................................................................................................. 22

- Sclerite c straight (e.g. Figs. 82, 103, 108) ................................................................................................................. 23

22. Sclerite b very long and elongate, curved to form a hook that extends beyond edge of sclerite c ( Figs. 89, 90)........... ...................................................................................................................................................... A. dendritica , sp. nov.

- Sclerite b not very long and elongate ( Figs. 130, 131) ................................................................... A. sarahae , sp. nov.

23. Sclerite b with setae extending to distal end ( Fig. 109) ............................................................ A. longbottomi , sp. nov.

- Sclerite b with setae not extending to distal end ( Figs. 82, 86, 103, 126) .................................................................. 24

24. Sclerite b with pointed distal tip, basal process as wide as long ( Fig. 103); sclerite c with sub-distal indentation and broad distal tip ( Figs. 102, 103); sclerite a with deep distal hood and entirely exposed vertically orientated pseudoflagellum ( Figs. 102, 103) ................................................................................................................ A. grandis , sp. nov.

- Sclerite b with rounded distal tip, basal process wider than long ( Figs. 82, 86, 126); sclerite c without sub-distal indentation ( Figs. 81, 85, 125); sclerite a without deep distal hood, pseudoflagellum curved and lying within sclerite a ( Figs. 82, 86, 126) ....................................................................................................................................... 25

25. Sclerite c narrow and generally straight distally with rounded, sometimes slightly asymetrical tip, shallow concavity present on interno-lateral side ( Figs. 125, 126) ............................................................................ A. psittacina , sp. nov.

- Sclerite c slightly thickened and curved distally ( Figs. 81, 85) .................................................................................. 26

26. Sclerite c broadened distally ( Figs. 81, 82); sclerite b broad with small pointed distal tip ( Figs. 81, 82) ...................... ........................................................................................................................................................ A. bamfordi , sp. nov.

- Sclerite c not as broadened distally ( Figs. 85, 86); sclerite b broad with gradually tapering tip ( Fig. 86)..................... ........................................................................................................................................................... A. culleni , sp. nov.

Figures

FIGURES 1–3. 1: Atelomastix montana, sp. nov., from Stirling Range National Park, Western Australia (WAM T54251); 2: Atelomastix rubricephala, sp. nov., from Two Peoples Bay Nature Reserve, Western Australia (WAM T69939); 3: Atelomastix tigrina, sp. nov., from Stirling Range National Park, Western Australia (WAM T74312).