Frost and Fleminger, 1968
Females: CR more than 1.52 times as long as wide. A1 segment 2 more than 1.40 times as long as segment 24. More characters can be accessed by backtracking the key:
Page 771
Males: Longer leg of P5 much shorter than Ur. More characters can be accessed by backtracking the key:
Page 1121