Xu, Q.-H. 2015.

Description of the final stadium larva of Heliocypha perforata perforata (Percheron), with discussion of the taxonomic characters of the larvae of the genus Heliocypha Fraser (Odonata: Zygoptera: Chlorocyphidae)

. Zootaxa. 3926, 1 (Mar. 2015), 137–141. DOI:https://doi.org/10.11646/zootaxa.3926.1.8.