Australian Pionidae 
371 
Other Material 
Australia: Western Australia: 1$, Barrabup Pool 
near Nannup [33°57'S, 115°41'E], 1 September 1985, 
M.S. Harvey, T.J. Doeg (NMV K1019; SL); Id, The 
Cascades, 8 km SSW. of Pemberton, 34°30'S, 
116°00'E, 2 September 1985, M.S. Harvey, T.J. Doeg 
(NMV K1005; SL); 3d, 109, same data except 29 
August 1987, M.S. Harvey, J.D. Blyth (NMV 
K1006-1018; FL); 19d, 59, 2 deutonymphs, same 
data except 3 May 1990, M.S. Harvey, J.M. 
Waldock (WAM 94/2056-2081; FL); 2d, 19, 
Gardner R. at Chesapeake Rd, 34°48'S, 116°11'E, 1 
May 1990, M.S. Harvey, J.M. Waldock (WAM 94/ 
2082-2084; FL); 6d, 19, Dog Pool on Shannon 
River, 20 km S. of Shannon, 34°46'S, 116°22'E, 29 
August 1987, M.S. Harvey, J.D. Blyth (WAM 94/ 
2085-2091; FL); 12d, 219, 1 deutonymph, same 
data except 27-30 April 1990, M.S. Harvey, J.M. 
Waldock (WAM 94/2092-2125; FL); 3d, 259, 2 
deutonymphs. Lake Yeagarup, 18 km SW. of 
Pemberton, 34°33'S, 115°43'E, 29 August 1987, M.S. 
Harvey, J.D. Blyth (WAM 94/2126-2155; FL); lid, 
89, same data except 3 May 1990, M.S. Harvey, 
J.M. Waldock (WAM 94/2156-2174; FL). 
Diagnosis 
Tibia and metatarsus of male leg IV without 
thickened setae. Ventral shield absent; 2 pairs of 
lateralia. 
Description 
Adult 
Colour pale brown-yellow. Glandularia: 5 pairs 
of dorsoglandularia, 4 pairs of lateroglandularia 
and 6 pairs of ventroglandularia; ventral shield 
absent (Figures 24, 27). Dorsum (Figures 23, 26): 
with 2 pairs of dorsalia posterior to the 
postocularia. Venter (Figures 24, 27): coxae not 
fused into single plate; apodemes of coxa I nearly 
extending to posterior edge of coxa III; coxae I 
fused in mid-line; suture lines between coxae III 
and IV not reaching mid-line, extending laterally; 
sclerotized area not present posterior to the coxae; 
2 pairs of lateralia. Genital region (Figures 25, 28): 
4 pairs of circular acetabula; each acetabular plate 
with 4 small setae on anterior portion (d), or 3 
anterior and 2 posterior small setae. Chelicera not 
examined. Pedipalp (Figure 31): tibia with 2 ventral 
