Key for the species of the genus Parapaulipalpina Gnaspini, 1996

1a Head with strongly reduced eyes; flagellum of the aedeagus expanded apically; Colombia ...... P. filicornis (Jeannel, 1936)

1b Eyes not strongly reduced; flagellum of the aedeagus not expanded apically...................................... 2

2a Elytra truncate; male protarsomeres slender; Peru .................................... P. tambopata (Salgado, 2013)

2b Elytra apices normally rounded; male protarsomeres normally expanded laterally.................................. 3

3a Eyes slightly reduced; posterior margin of male metafemur straight; male metatibia largely widened and flattened internally close to its apex; Brazil ................................................................... P. lobata sp. nov.

3b Eyes normal; posterior margin of male metafemur bearing a tubercle medially; male metatibia curved inwards medially and not expanded apically.................................................................................... 4

4a Last palpomere much longer than previous one; aedeagus concave ventrally, deeper about one third from base; Peru, Ecuador .............................................................................. P. giachinoi Salgado, 2005

4b Last palpomere as long as previous one; aedeagus concave ventrally, deeper medially, and convexly produced near apex; Venezuela ....................................................................... P. dentata Gnaspini, 1996