Novonothrus

Colloff, Matthew J., 2011, A review of the oribatid mite family Nothridae in Australia, with new species of Novonothrus and Trichonothrus from rain forest and their Gondwanan biogeographical affinities (Acari: Oribatida), Zootaxa 3005, pp. 1-44 : 30-31

Key to species of Novonothrus (adults)

1. Tridactylous.......................................................................................... 2

- Monodactylous....................................................................................... 3

2. Seta c 1 markedly longer than c 2; notogastral setae broad basally, spiniform, sparingly barbed; epimeral setal formula 5-4-6-5.............................................................. N. covarrubiasi Casanueva & Norton, 1997 ( Chile)

- Seta c 1 and c 2 subequal in length; notogastral setae thin, isodiametric, smooth, setiform; epimeral setal formula 5(6)-4-5-5.................................................................. N. puyehue Casanueva & Norton, 1997 ( Chile)

3. Lateral margins of prodorsum with three pairs of setae present (l 1-3).............................................. 4

- Lateral margins of prodorsum without setae l 1-3.............................................................. 5

4. Interlamellar setae smooth, spiniform, covered with flat, broad cerotegument... N. flagellatus Hammer, 1966 ( New Zealand)

- Interlamellar setae barbed, covered with cerotegument, but not flat and broad...................................................................................................... N. coronospinosus sp. nov. (New South Wales)

5. Caudal margin distinctly lobed; with lateral lobes bearing setae h 2 and median caudal projection with setae h 1 and p 1; notogas- tral setae all smooth, short, covered in broad cerotegument, rounded apically....................................................................................................... N. kethleyi Casanueva & Norton, 1998 ( Chile)

- Caudal margin not distinctly lobed; notogastral setae not all short and covered in broad cerotegument, rounded apically.... 6

6. All notogastral setae smooth (rarely, sparingly barbed), pointed; where present, cerotegumental covering of notogastral setae bacilliform, never broad and flat................................................ N. glabriseta sp. nov. (Tasmania)

- Notogastral setae of c -f series smooth, setiform, pointed, but those of h series and p 1 with well-developed barbs........... 7

7. Lateral notogastral ridges absent.................................................. N. silvanus sp. nov. (Victoria)

- Lateral notogastral ridges present......................................................................... 8

8. Setae of h series short with well-developed barbs covered in broad, flat cerotegument...... N. nothofagii sp. nov. (Victoria)

- Setae of h series long with thin short barbs covered in narrow cerotegument.. N. barringtonensis sp. nov. (New South Wales)