Hydropsyche javanica

Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), Zootaxa 1802, pp. 1-248 : 71

Hydropsyche javanica species clade

The javanica clade was established by Mey (2003). The species in this clade have all a long phallotremal tongue-like process reaching the tip or nearly reaching the tip of the phallic apparatus; enlarged base of the phallotremal sclerite surrounding the phallotremal opening; dorsum above the phallotrema being weakly sclerotized; and the tip of the phallic apparatus consisting of the membranous endotheca, forming a pair of erectile lobes.