Aethiopella

Key to Neotropical species of Aethiopella Handschin, 1942

1 PAO with 20 or more vesicles, mandibles with 6 teeth........................................................ 2

- PAO usually with 19 or less vesicles, mandibles with 4–5 or more than 6 teeth..................................... 4

2 Ant. IV with trilobed apical bulb and 7 dorsal sensilla........................................................ 3

- Ant. IV with bilobed apical bulb and 8 dorsal sensilla............ A. ariana Najt, Thibaud & Weiner, 1990 (French Guiana)

3 PAO with about 36 vesicles............................... A. caraibensis Thibaud & Massoud, 1983 (Lesser Antilles)

- PAO with 20–27 vesicles......................... A. pilarandresae Palacios-Vargas & Montejo-Cruz, 2014 (Nicaragua)

4 Mandibles with 7 or more teeth.......................................................................... 5

- Mandibles with 4–5 teeth....................... A. delamarei Arlé, 1959 (Brazil, French Guiana, Guadeloupe, Mexico)

5 Mandibles with 9–10 teeth, Tita I–III with 18/18/17 chaetae respectively, males with 4+4 enlarged eugenital chaetae................................................................... A. littoralis Fernandes & Mendonça, 2002 (Brazil)

- Mandibles with 7–8 teeth, Tita I–III with 19/19/18 chaetae respectively, males lacking modified eugenital chaetae....................................................................................... A. ricardoi sp. nov. (Brazil)