Lojková, S., Degma, P. and Kodada, J. 2014. Morphometry and redescription of Parahelichus granulosus (Delève, 1974)  with description of P. pseudogranulosus, a new cryptic species of Long-toed Water Beetles (Coleoptera: Dryopidae) from Indochinese peninsula, and proposal of a new synonym for Praehelichus sericatus (Waterhouse, 1881) from China. Zootaxa. 3852, 4 (Aug. 2014), 475–488. DOI:https://doi.org/10.11646/zootaxa.3852.4.5.