Published as part of Almeida, Nilhian Gonçalves De, Camargo, Roberto Da Silva, Forti, Luis Carlos & Lopes, Juliane Floriano Santos, 2018, Hierarchical establishment of information sources during foraging decision-making process involving Acromyrmex subterraneus (Forel, 1893) (Hymenoptera, Formicidae), pp. 36-39 in Revista Brasileira de Entomologia 62 (1) on page 37, DOI: 10.1016/j.rbe.2017.11.006, http://zenodo.org/record/13197869

Fig. 1. Y-trail system with branches of equal length (225 mm). Branches arranged at an angle of 60◦ connected to a bifurcation. Decision lines (LD) established at fixed points 140 mm far from the bifurcation center on the right and left branches, and 25 mm from the base branch to calculate the A. subterraneus workers' frequency of passage when half of their bodies had crossed each LD.