126 
Rowland M. Shelley 
one female paratypes (VMNH) taken by same collector on same date 
in Canyonville County Park, 2 mi (3.2 km) E Canyonville. 
Diagnosis — Dorsum without stripes, color pale yellow to white; 
caudal metatergal margins indistinctly upturned, caudolateral corners 
of midbody metatergites slightly but distinctly extended and rounded; 
telson broad, comprising entire breadth of caudal extremity; sternal 
lobes of anterior gonopods relatively long, widely segregated; coxal 
lobe of latter long and narrow, apically rounded, leaning laterad and 
overlapping 4th and 5th podomeres; dorsal branch of ultimate podomere 
short and broad, apically blunt, curved slightly ventrad and directed 
submediad; ventral lobe of ultimate podomere distinct, clearly overhanging 
dorsal branch; ultimate podomere of posterior gonopod apically fimbriate 
(Figs. 16-18). 
Table 3. Segment Numbers and Average Lengths (mm) of O. prolata (no. indi- 
viduals averaged in parentheses). 
County 
Locality 
Males 
Segs. Lengths 
Females 
Segs. Lengths 
Douglas, OR 
Canyonville 
34 
6.8 
(2) 34 
7.3 
30 
5.6 
31 
6.8 
(2) 24 
3.8 
Douglas, OR 
2 mi E 
38 
9.2 
32 
7.2 
Canyonville 
36 
8.4 
31 
6.0 
30 
5.4 
Josephine, OR 
SW Wolf 
45 
9.2 
Creek 
Josephine, OR 
1 mi S 
30 
5.6 
O’Brien 
Josephine, OR 
2.5 mi S 
35 
7.9 
O’Brien 
Jackson, OR 
6 mi S Ruch 
32 
6.6 
37 
8.5 
29 
6.9 
31 
6.2 
27 
5.7 
26 
6.3 
25 ' 
4.8 
21 
5.0 
(2) 23 
4.2 
22 
4.2 
