Austrophthiracarus, Balogh J. & Mahunka, 1978

Liu, Dong & Zhang, Zhi-Qiang, 2018, New Zealand Austrophthiracarus (Acari, Oribatida, Steganacaridae): two new species from the North Island, Zootaxa 4500 (3), pp. 443-450 : 448-449

Key to species of Austrophthiracarus reported from New Zealand

1 Sensilli long, setiform, without distinctly swollen head; posterior part of notogaster with peculiar structure of protuberance... .................................................................................................... 2

- Sensilli short, club-like or fusiform; posterior part of notogaster without peculiar structure of protuberance............... 3

2 Protuberance on notogaster large, rounded and tail-like, with four pairs of setae; formula of genital setae: 9(4+5): 0....................................................................................... A. hiore Liu & Zhang, 2014a

- Protuberance on notogaster much smaller, and irregular in shape, with two pairs of setae; formula of genital setae: 7(4+3): 0................................................................................ A. daimonios Niedbała, 2000

3 Notogaster with 15 pairs of setae......................................................................... 4

- Notogaster with more than 15 pairs of setae................................................................. 7

4 Interlamellar setae short and fine................................................. A. tawhai Liu & Zhang, 2013c

- Interlamellar setae long and thick......................................................................... 5

5 Setae ad 1 and ad 2 not vestigial....................................................... A. bah Liu & Zhang, 2015a

- Setae ad 1 and ad 2 vestigial............................................................................... 6

6 Lamellar setae well developed; c 1> c 1 – d 1 ............................................ A. waitere Liu & Zhang, 2015a

- Lamellar setae vestigial; c 1 <c 1 – d 1 ......................................................... A. whirinaki sp. nov.

7 All notogastral setae minute and fine............................................... A. karioi Liu & Zhang, 2014b

- All notogastral setae long and thick....................................................................... 8

8 20 or more pairs of notogastral setae present................................................................ 9

- Fewer than 20 pairs of notogastral setae present............................................................. 11

9 Interlamellar setae more than three times as long as lamellar setae; three pairs of lyrifissures present................................................................................................ A. neotrichus ( Wallwork, 1966)

- Interlamellar setae less than twice as long as lamellar setae; two pairs of lyrifissures present......................... 10

10 Exobothridial setae vestigial; 21 pairs of notogastral setae present................... A. notoporosus Liu & Zhang, 2014b

- Exobothridial setae not vestigial; 20 pairs of notogastral setae present.................... A. matuku Liu & Zhang, 2014b 11 Fewer than 19 pairs of notogastral setae present............................................................. 12

- 19 pairs of notogastral setae present...................................................................... 15

12 16 pairs of notogastral setae present...................................................................... 13

- 18 pairs of notogastral setae present...................................................................... 14

13 Interlamellar setae vestigial; sensilli broad fusiform with rounded head....................... vestigius Liu & Wu, 2016

- Interlamellar setae not vestigial; sensilli narrow fusiform with pointed head........................ A. taranaki sp. nov.

14 Interlamellar setae not vestigial; three pairs of lyrifissures present............................ A. aureus Niedbała, 2000

- Interlamellar setae vestigial; two pairs of lyrifissures present............................. A. pulchellus Niedbała, 1993

15 Setae ad 3 and ad 3 ’ minute and fine; exobothridial setae not vestigial............................................. 16

- Setae ad 3 and ad 3 ’ long and thick; exobothridial setae vestigial................................................. 17

16 Interlamellar setae vestigial; two pairs of lyrifissures ia and im present................. A. cronadun Liu & Zhang, 2013c

- Interlamellar setae not vestigial; three pairs of lyrifissures ia, im and ips present.......... A. paracronadun Liu & Wu, 2016

17 Setae h of subcapitulum vestigial............................................... A. neonominatus Liu & Wu, 2016

- Setae h of subcapitulum not vestigial.............................................. A. kirikiri Liu & Zhang, 2015a