Genus Polydrepanum Carl, 1932

Type species: Polydrepanum tamilum Carl, 1932, by monotypy.

Taxonomic composition. Before providing a refined generic diagnosis, the species composition of Polydrepanum must be clarified, as this genus is perhaps the most ambiguous taxonomically amongst the Alogolykinae . Even though Sankaran and Sebastian (2018) have recently reviewed the genus, provided its diagnosis, described a new species, and gave a key to species, their results require revision.

The following nominate Polydrepanum species have previously been distinguished, five of which are named and the remaining three unnamed. All of them are presented below in alphabetic order, also being catalogued, rediagnosed, illustrated, and commented upon as regards their present status. All four true Polydrepanum species are keyed as well.