Author: Bertaco, Carvalho & Jerep, 2010
Comments: The collection locality is around 1135 m above sea level, rio dos Couros in that point has moderate riparian vegetation and it is typically between 10 and 15 m wide, and 1.5 m deep.  Although presenting some rapids, the water is clear, the substrate has stones, rocks, and some stretches with mud.  Most of the specimens were collected on the stretch downstream from the waterfall, a few specimens on the stretch upstream of waterfall.  Only 4 species were collected syntopically with <i>A. courensis</i>:  <i>Characidium stigmosum</i>, 
  <i>C. aff. zebra</i>, <i>Gymnotocinclus anosteos</i> and <i>Trichomycterus</i> sp.  The stomach contents of five specimens consisted of Plecoptera, Trichoptera, Chironomidae (Diptera), authochthonous and allochthonous insects, and digested vegetal organic matter; these stomachs were partially full (Ref. 84461).