[1][2] The species is known from a single 5th instar female nymph exuvia found in Hymenaea protera amber from deposits in the Dominican Republic.

[2] Though mostly complete the exuvia is missing the right foreleg, the left middle leg, a small section of antenna and the anteocular region.

[2] Included in the amber specimen are two fecal pellets from the insect which contain preserved flagellates of the extinct Trypanosoma antiquus.

[2] T. dominicana lived in an environment similar to modern moist tropical rain forests.

Based on the contents of the amber specimen including three hematophagous insects, it is likely to have been formed in a tree cavity.