128 
Rowland M. Shelley 
Figs. 19-21. O. sierra, holotype. 19, right anterior gonopod and sternum, 
anterior view. 20, left anterior gonopod, caudal view. 21, distal podomeres 
of right posterior gonopod, caudal view. Scale line = 0.25 mm for all figs. 
Table 4. Segment Numbers and Average Lengths (mm) of O. sierra (samples at 
one locality are combined; no. individuals averaged in parentheses) 
County 
Locality 
Males Females 
Segs. Lengths Segs. Lengths 
Placer, CA 
Placer, CA 
4 mi W 
(2) 49 
11.7 
41 
11.9 
Newcastle 
42 
9.3 
39 
11.0 
38 
9.0 
38 
9.8 
36 
7.1 
(3) 35 
7.2 
34 
7.8 
4 mi N 43 11.5 
Newcastle 
