It was until recently (2011) considered to be a synonym of Hyalinobatrachium fleischmanni.
[1] Hyalinobatrachium cappellei are known for prolonged breeding and parental expression.
Usually, the fitness and survival of offspring benefit at a loss to the parent.
However, for this species, the males likelihood of mating increases with the number of clutches they attend (Vargas-Salinas, 2014).
A close species is called Hyalinobatrachium fleischmanni.