Key to Colombian species of Trichoscelia

(after Ardila-Camacho & García 2015, modified)

1. FW pterostigma mostly piceous without yellow spots (Ardila-Camacho & García 2015, Figs. 14a, b); gonocoxite 9 with one long preapical spine (Ardila-Camacho & García 2015, Fig. 15d)..................... T. karijona Ardila-Camacho, 2015

- FW pterostigma brown with a central yellow spot; gonocoxite 9 with four to six apical spines......................... 2

2. Posterior and apical margins of forewing with a series of amber infuscations (Fig.1); male gonocoxite 9 with four apical spines (Fig. 2d)................................................................................ T. umbrata n. sp.

- Forewing nearly entirely hyaline; gonocoxite 9 with five or six apical spines....................................... 3

3. Area between CuA and posterior wing margin of both wings with membrane and venation light yellow (Ardila-Camacho & García 2015, Figs. 12a, b); forefemur completely yellow; male gonocoxite 9 with five apical spines (Ardila-Camacho & García 2015, Fig. 13c)......................................................... T. gorgonensis Ardila-Camacho, 2015

- Area between CuA and posterior wing margin of both wings with venation alternating brown and yellow and membrane hyaline; forefemur yellow but brown infuscated dorsolaterally (Ardila-Camacho & García 2015, Figs. 9b, c); male gonocoxite with six apical spines......................................................... T. andina Ardila-Camacho, 2015