Limnesiidae from northern and Western Australia 
Peg-like seta of ventral margin of PII not on a 
tubercle; setal tubercles of PIV small. Lengths of I- 
leg-4-6: 142, 166, 132. Lengths of IV-leg-4-6: 216, 
233, 214; distal seta of IV-leg-6 142 long. III-leg-4 
with one, Ill-leg-5 with nine, IV-leg-4 with four and 
IV-leg-5 with two long swimming setae. 
Female 
Body 1212-1397 long and 1018-1096 wide. 
Dorsum with an elongated platelet, 184-213 long. 
First coxal plates fused medially. A strip of 
secondary sclerotization along coxal plates . 
Gonopore 194 long. Genital field with two pairs of 
three acetabula. A genital sclerite 204 in width, 
anterior of genital field. Excretory pore between 
associated glandularia. Palp as in male; lengths of 
PI-PV: 36, 146, 118, 233, 34. Lengths of I-leg-4-6: 
166, 194, 156. Lengths of IV-leg-4-6: 242, 272, 252; 
length of distal seta of IV-leg-6 146. III-leg-4 with 
one, III-leg-5 with eight, IV-leg-4 with four and IV- 
leg-5 with three long swimming setae. 
Remarks 
The new species belongs to the so/ida-group (L. 
australica Lundblad, L. parasolida, L. solida) of Cook 
(1986). The only other species of that group with 
the Glandula Limnesiae well separated from the 
associated setae, L. parasolida, has the gonopore as 
large as the genital field and less extensive 
secondary sclerotization. Further, L. rubra has long 
swimming setae (as in australica), while parasolida 
and solida have stiff swimming setae. The 
combination of long swimming setae and well 
separated Glandula Limnesiae and associated setae 
will separate the female from other females of the 
so/ida-group. 
Etymology 
Named for its conspicuous red colour. 
Limnesia (Limnesia) solida Lundblad 
Figure 5 
Limnesia solida Lundblad, 1947: 46; K.O. Viets, 1975: 
93; Smit, 1992: 95. 
Material Examined 
Australia: Northern Territory: 1 d, Home 
Billabong, Kakadu National Park, 22 July 1994; 1 9, 
Jim Jim Billabong, at crossing with Kakadu 
Highway, Kakadu National Park, 22 July 1994; 2 
d, pond Jim Jim Creek, at Jim Jim campground, 
Kakadu National Park, 23 July 1994; 2 d, pools 
upstream of Waterfall Creek, Kakadu National 
Park, 25 July 1994; 1 d, 3 9, Kambolgie Creek, 
Kakadu National Park, 26 July 1994; 1 9, Southern 
Rockhole, Katherine Gorge National Park, 27 July 
1994; 4 d, 3 9, 1 nymph, billabong near Douglas 
Hot Springs, 1 August 1994; 6 d, 14 9, 1 nymph, 
351 
waterhole Kantju Gorge, Ayers Rock, 4 August 
1994; 1 9, ponds Ormiston Gorge, Ormiston Gorge 
National Park, 6 August 1994. 
Western Australia: 7 d, 9 9, 1 nymph, Fortescue 
Falls (pool), Hamersley Range National Park, 11 
August 1994; 2 d, 7 9,5 nymphs. Circular Pool, 
Hamersley Range National Park, 12 August 1994; 1 
9, pond Dales Gorge, Hamersley Range National 
Park, 12 August 1994; 3 d, 2 9, 1 nymph, pond 
Knox Gorge, Hamersley Range National Park, 13 
August 1994; 9 d, 17 9, 1 nymph, pool Joffre 
Gorge, Hamersley Range National Park, 13 August 
1994; 11 d, 5 9,2 nymphs, pond Kalamina Gorge, 
near falls, Hamersley Range National Park, 13 
August 1994; 2 9, Handrail pool, Weena Gorge, 
Hamersley Range National Park, 14 August 1994; 
10 d, 15 9, pond Hancock Gorge, Hamersley 
Range National Park, 14 August 1994; 8 d, 6 9,3 
nymphs. Palm Pool, Millstream-Chichester 
National Park, 15 August 1994; 2 9, 1 nymph, 
small pond near Crossing Pool, Millstream- 
Chichester National Park, 16 August 1994; 1 9, 
Crossing Pool, Millstream-Chichester National 
Park, 16 August 1994; 11 d, 4 9, Python Pool, 
Millstream-Chichester National Park, 17 August 
1994; 18 d, 27 9, 1 nymph, McKenzie Spring, 
Millstream-Chichester National Park, 17 August 
1994; 14 d, 6 9, pond Snake Creek, Millstream- 
Chichester National Park, 17 August 1994; 5 d, 4 
9, 1 nymph, Jones River, east of Roeburne, 17 
August 1994; 1 d, 1 9,2 nymphs, Fortescue River, 
at crossing with North West Coastal Highway, 18 
August 1994; 1 d, 17 9, Ashburton River, at 
Figure 5 Limnesia solida Lundblad, dorsal view, 3. 
Scale line = 200 pm. 
