This name is a synonym of Cryptantha diplotricha (Phil.) Reiche.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4002931) with original publication details: Anales Mus. Nac. Chile, Bot. 8: 57 1891.
This name record (from Tropicos) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Eritrichium diplotrichum in version 1 of The Plant List.