The Chonaphini 141 



August 1976, J. T. Thompson (UWBM). Skamania Co., Ape Cave, ca. 

 4.4 mi (7.0 km) E, 4.0 mi (6.4 km) N Cougar (in Cowlitz Co.), 

 46.109°N, 122.210°W, M, F, 13-30 May 1983, R. Crawford (UWBM). 



The following literature record of C. armata is referrable to C. 

 remissa. 



WASHINGTON: Thurston Co., farm near Olympia (Attems 1931); 

 Verhoeff's gonopod illustration (1941, fig. 5) is of this specimen. 



Remarks — Most prior records of C. armata actually refer to C. 

 remissa, as no one realized that the Cascade Mountains in Washington 

 form a distributional boundary, with a different species on each side 

 of the crest. An addition to the above record is the general comment 

 by Loomis and Schmitt (1971) that C. armata occurs in the Puget 

 Sound area. However, south of the Columbia River in Oregon, C. 

 armata occurs in the Willamette Valley and eastern slope of the Coast 

 Range, and both the genus and tribe are absent from the Cascades. 



The prefemoral processes of C. armata and remissa are very 

 similar and can be confused but the apical lamina is vertical or 

 coaxial with the stem in the latter and horizontal or transverse to it in 

 the former. Additionally, the thickened, convoluted, distal projection 

 is more proximal in C. remissa, being closer to the shelf/shield and 

 farther from the tip; in C. armata, it is situated closer to the tip, 

 occurring almost in the middle between the shelf and tip. The shield is 

 longer in C. remissa, extending well along the lateral side of the stem 

 of the prefemoral process; it terminates at the level of the shelf in C. 

 armata. 



Chonaphe evexa, new species 

 Figs. 15-20 



Type specimens — Male holotype and 1 male and 1 female paratypes 

 (UCD), and 1 male paratype (NCSM), collected by J. S. Buckett and 

 M. R. Gardner, 11 March 1968, 9 mi (14.4 km) north of Agness, Coos 

 County, Oregon. 



Diagnosis — Dorsal surface of prefemoral process without projection 

 distal to shelf, with angular ridge; apical margin broadly rounded, 

 continuing downward to blunt termination on medial side, not divided 

 but with subterminal lateral margin inturned to narrowly rounded, 

 subacuminate tip; shield not connecting with lateral margin. 



Color in life — Unknown, but evidence of paranoial spots in preserved 

 specimens. 



Holotype — Length 21.5 mm, maximum width 3.4 mm, W/L ratio 

 15.8%, D/W ratio 82.4%. 



