Parachironomus

Trivinho-Strixino, Susana, Silva, Fabio Laurindo Da & Roque, Fabio Oliveira, 2010, A new species of Parachironomus Lenz, 1921 (Diptera: Chironomidae: Chironominae), and description of immature stages of two other species from the Neotropical Region, Zootaxa 2689, pp. 1-14 : 13

Key to pupae of four Parachironomus species from Brazil

1. Cephalic tubercles absent; posterolateral corners of segment VIII without spurs ................................ P. lupus sp. n.

- Cephalic tubercles present; posterolateral corners of segment VIII with or without spurs ......................................... 2

2. Posterolateral corners of segment VIII without spurs ............................................................................. P. longistilus

- Posterolateral corners of segment VIII with pale spurs .............................................................................................. 3

3. Sternite II with anterior and posterior transversal band of pale spines ............................................................. P. tirio

- Sternite II without anterior and posterior transversal band of pale spines .................................................... P. cayapo