Ballomma erasmus is known from both sexes. Males have a mediumbrowncephalothorax and pale yellowish-brown legs with a greenish tinge on the femora. The abdomen has a complexdark pattern on a pale background. Females have a medium brown cephalothorax with a dark margin and a dark sepia opisthosoma with a complex pale pattern.
Ecology
Ballomma erasmus are free-living ground-dwellers that inhabit the leaf litter of forest environments. They are primarily collected through litter sifting methods.