1 literature reference for Diplacodes rubra (Kirby, 1889):

Author: Kirby, W. F.
Year: 1889
Title: A revision of the subfamily Libellulinae, with descriptions of new genera and genera. [Date important, cf Selys' Odonates de Sumatra].
Source: Proceedings Zoological Society London 12 (9): 249-348, incl. pl. 51-57.