Couplet 69

69a:  Frontoclypeal suture distinctly impressed; all ventrites free; first ventrite without postcoxal lines; pronotum often with sublateral lines (Figure 26-59C)

Endomychidae   p. 433

69b:  Frontoclypeal suture absent; 2 basal ventrites connate, first ventrite with postcoxal lines; pronotum lacking sublateral lines