Giesbrecht, 1889
Females: Ur2 in dorsal view with conspicuous, narrow, right side process just posterior to midlength, plus more anteroventrally placed swelling; A1 does not extend to posterior border of CR. More characters can be accessed by backtracking the key:
Page 467
Males: Right P5 Exp2 inner process abruptly curved at about midlength and bearing teeth along distal part; spines on A1 segments 15 and 16 with their bases about 1/2 length of segment. More characters can be accessed by backtracking the key:
Page 1019