Australian Pionidae 
365 
86 (83-102), patella 108-113 (115-140), tibia 137- 
151 (148-179), metatarsus 157-180 (164-200), tarsus 
141-173 (142-192). 
Deutonymph 
Much as in adults except that vgx is absent; 
genital region with 2 pairs of acetabula. 
Dimensions (pm): body 464/365. 
Remarks 
This lotic species has been collected from only 
three localities in southwestern Australia (Figure 
10 ). 
Etymology 
The specific epithet is an arbitary combination of 
letters. 
Australotiphys Cook 
Australotiphys Cook, 1986: 202. 
Type species 
Australotiphys magnisetus Cook, 1986, by original 
designation. 
Diagnosis 
Legs III and IV of male unmodified, except for 
the presence of enlarged setae on leg IV in two 
species. Body with accessory sclerotization. Genital 
field with many pairs of acetabula. Excretory pore 
surrounded by sclerotized ring. 
Remarks 
This genus was erected by Cook (1986) for an 
unusual species from New South Wales known 
only from a single male. Two additional species 
have recently been collected and are described 
below. The genus has a wide, apparently disjunct 
distribution in Australia, with separate species 
known from northeastern New South Wales (A. 
magnisetus), northern Australia (A. himonius) and 
southwestern Australia (A. barmutai) (Figure 10). 
Australotiphys magnisetus Cook 
Figures 10-12 
Australotiphys magnisetus Cook, 1986: 202, figs 
1059-1060, 1062-1068. 
Figures 7-9 Larri laffa sp. nov., holotype 8 : 7, left leg 1; 8, left leg IV; 9, right pedipalp. Scale lines = 100 pm. 
