Polana (Polana) robusta DeLong 1980, comb. nov.

Polana (Polana) robusta DeLong, 1980 comb. nov. Polana (Nihilana) robusta DeLong, 1980: 126. Remarks. Is clear in the illustration of the Polana robusta aedeagus that it has processes at the base, as also mentioned in the original description: “A pair of processes arise at base and curve ventrally, then apically and dorsally, extending three-fourths length of shaft” (DeLong 1980: 127, figs 11, 12); the pygofer has a basodorsal apically hooked process (DeLong 1980: 127, fig. 15). These features support including this species in the subgenus Polana. DeLong & Wolda (1978) described two species from Panama, placing both in the subgenus Polanana. However, one of them, Polana chena, has long processes on the dorsal apodeme of the aedeagus, which disagrees with the diagnosis of Polanana. Therefore, the following new combination is proposed: