384 
M.S. Harvey 
peg-like setae (Figures 63, 64); legs with swimming 
setae arranged as follows: leg I: d, tibia 3, 
metatarsus 5; 9, patella 0-2, tibia 6-8, metatarsus 
12-14; leg II: d, tibia 3, metatarsus 6; 2, patella 3- 
6, tibia 10-11, metatarsus 12-14; leg III: d, patella 
2, tibia 6, metatarsus 5; 2, patella 5-6, tibia 10-11, 
metatarsus 12-14; leg IV: d, tibia 3, metatarsus 3; 
2, patella 1-2, metatarsus 7-9, tarsus 3-4. 
Dimensions (pm), d (2): body 512/384 (1193- 
1431/684-859); capitulum length 136 (167-206); 
genital field 84/175 (237-262/314-403). Pedipalp: 
trochanter 25 (29-35), femur 99 (103-127), patella 
52 (54-63), tibia 88 (92-110), tarsus 52 (65-76). Leg 
I: trochanter 62 (90-96), femur 83 (115-134), patella 
102 (140-154), tibia 147 (192-231), metatarsus 168 
(210-268), tarsus 180 (213-273). Leg III: metatarsus 
166, tarsus 127. Leg IV: trochanter 110 (122-160), 
femur 80 (94-132), patella 103 (137-192), tibia 146 
(180-259), metatarsus 152 (197-282), tarsus 142 
(204-253). 
Deutonymph 
Much as in adults except that vgx is absent; 
genital region with 2 pairs of acetabula. 
Figures 67 70 Piona marchanti sp. nov.: 67-68, holotype d : 67, ventral aspect; 68, genital field; 69-70 9 paratvoe- 69 
ventral aspect; 70, genital field. Scale lines = 100 pm. V 
