Key to the males of Litocladius Mendes, Andersen et Saether

1. Third palpomere with 1–2 strong spines apically; wing membrane with at least 10 setae in cell r4+5..................... 2

- Third palpomere with setae only; cell r4+5 with 0–1 setae....................................................... 4

2. Veins M3+4, Cu1 and An with setae, cell m1+2 with 80–140 setae. Costa Rica ......................... L. chavarriai sp. n.

- Veins M3+4, Cu1 and An bare, cell m1+2 with less than 40 setae................................................... 3

3. Inferior volsella with dorsal ridge-like projection; veins R1, R4+5 and M1+2 always setose. Brazil ..................................................................................................... L. floripa Mendes et Andersen

- Inferior volsella rounded; veins R1, R4+5 and M1+2 bare. Brazil ....................................... L. neusae sp. n.

4. Crista dorsalis distinct; inferior volsella with rounded oral projection. Brazil ........ L. mateusi Mendes, Andersen et Saether

- Crista dorsalis absent; inferior volsella low, adpressed to gonocoxite. Brazil ............... L. confusus Mendes et Andersen