Key to females of Allomallodon (adapted from Santos-Silva and Galileo 2010)

1. Disc of pronotum closely punctate-rugose without shining callosity (Fig. 1); prosternum (Fig. 2) in front procoxal cavity about as long as procoxa; Bolivia ............................................................ A. bolivianus Wappes and Santos-Silva, sp. nov.

— Disc of pronotum with shining, mostly impunctate callosity (Fig. 5, 7); prosternum (Fig. 6, 8) in front of procoxal cavity shorter than procoxa...................................... 2

2(1). Mandibles tumid on outer face; prosternal process (Fig. 8) not notably narrowed at middle; shining callosity on pronotal disc divided at middle by distinct or moderately distinct furrow; Peru, Bolivia .......................................... A. popelairei (Lameere, 1902)

— Mandibles not tumid on outer face; prosternal process (Fig. 6) notably narrowed at middle; shining callosity on pronotal disc not or barely divided at middle by furrow; Colombia, Ecuador .............................................. A. hermaphroditus (Thomson, 1867)