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The poorly known, so called widely distributed and highly varying species of the European Rhyacophila fasciata species complex are revised by fine phenomics of the paramere organisation. In this species complex paramere is the most diverse organ. It is the speciation trait integrating the initial split of speciation by its stimulatory and titillating function involved in the early processes of reproductive isolation. Based on paramere organisation and on the character state of distribution three lineages have been delineated in the Rhyacophila fasciata species complex: the European R. fasciata lineage, the Caucasian R. aliena lineage and the R. mysica lineage distributed from Albania to Pakistan. In the R. fasciata lineage we have distinguished three clades of species: R. fasciata with five species, R. matrensis with seven species, and R. denticulata with seven species. We have re-diagnosed three known species: R. fasciata Hagen, 1859, R. denticulata McLachlan, 1879, R. sociata Navas, 1916 and described 15 species new to science: R. biharensis Oláh sp. nov., R. bulgarica Oláh sp. nov., R. coppai Oláh sp. nov., R. csornahorensis Oláh & Szczęsny sp. nov., R. ferda Oláh sp. nov., R. kopasa Oláh & Coppa sp. nov., R. matrensis Oláh, & Szczęsny sp. nov., R. retezatensis Oláh sp. nov., R. rova Oláh & Coppa sp. nov. R. ruda Oláh & Johanson sp. nov., R. salfa Oláh sp. nov., R. soreda Coppa & Oláh sp. nov. R. suna Oláh sp. nov., R. tuhega Oláh sp. nov., R. zemplenensis Oláh sp. nov. The species status of Rhyacophila gemella Navas, 1923 was reinstated.

Speciation traits of paramere, paraproct and aedeagus were applied to find initial split criteria with fine structure analysis in order to prepare diverged trait matrices for delimiting phylogenetic incipient species of unsettled limnephilid taxa in the early stages of reproductive isolation. A brief history is presented how this phenotypic taxonomic tool of the speciation traits was discovered and applied in caddisfly taxonomy. The theoretical basis was elaborated for the phenotypic speciation trait by reviewing several relevant topics in the sciences of taxonomy, molecular genetics and phylogenetics. Perspectives of integrative taxonomy is discussed in context of phenotype versus genotype, immensely complex phenotype versus phenomic challenge, taxonomic impediment versus genetic expedient, taxonomic adaptation of genetic vocabulary versus genetic sophistication and virtualization, New Systematics of Huxley and Mayr versus New Taxonomy of Wheeler. Debates on magic trait, speciation phenotype, speciation trait and super traits are discussed concluding that evolution works with phenotype and why the cryptic species concept is irrelevant. Briefly summarized how speciation traits evolve in sexual selection, through accelerated reproductive isolation with genital evolution through sex-limited speciation traits, including minor sex chromosomes. Why neutral molecular markers are blind compared to the adaptive speciation traits sensitized by fine structure analysis and backed by the potential of high-tech and high-throughput phenotyping and cyber-infrastructure broadly accessible and fed by computable phenotype descriptions. What sort of genetics could really help taxonomy to describe biodiversity of the over 100 million unknown taxa? Collecting new and re-examining old type materials deposited in various collections, the following taxonomic actions were elaborated by speciation traits. Drusus bolivari new species complex has been erected with redescription of Drusus bolivari (McLachlan, 1876), with species status resurrection of D. estrellensis (McLachlan, 1884) stat. restit., with description of five new species: D. carmenae Oláh, sp. nov., D. gonzalezi Oláh, sp. nov., D. grafi Oláh, sp. nov., D. gredosensis Oláh, sp. nov., D. jesusi Oláh, sp. nov., D. pyrenensis Oláh & Coppa, sp. nov. Genus Isogamus is revised with description of two new species: I. baloghi Oláh, sp. nov., I. balinti Oláh, sp. nov. Melampophylax genus revised with one new species cluster: M. nepos, with two new species descriptions: M. keses Coppa & Oláh, sp. nov. M. szczesnyorum Oláh & Chvojka, sp. nov., with three new species status: M. banaticus Botosaneanu, 1995 stat. nov., M. gutinicus Botosaneanu, 1995 stat. nov., M. triangulifera Botosaneanu, 1957 stat. nov. Rhadicoleptus genus revised with redescription of R. alpestris (Kolenati, 1848), with three new species status: R. macedonicus Botosaneanu & Riedel, 1965 stat. nov. R. meridiocarpaticus Botosaneanu & Riedel, 1965 stat. nov. R. sylvanocarpaticus Botosaneanu & Riedel, 1965 stat. nov., with one species status resurrection: R. spinifer (McLachlan, 1875) stat. restit. Based on paramere evolution the Rhadicoleptus genus is transferred from the tribe Limnephilini to Stenophylacini. Annitella kosciuszkii new species complex has been erected and revised with redescription of A. chomiacensis (Dziędzielewicz, 1908), A. lateroproducta (Botosaneanu, 1952), with one species status resurrection: A. kosciuszkii Klapálek, 1907 stat. restit., with description of a new species: A. wolosatka Oláh &Szczęsny, sp. nov., with two new synonyms: A. dziedzielewiczi Schmid, 1952 synonym of A. kosciuszkii. syn. nov., A. transylvanica Murgoci, 1957 synonym of A. kosciuszkii. syn. nov. Chaetopteryx rugulosa species group revised with description of five new species: C. balcanica Oláh, sp. nov., C. karima Oláh, sp. nov., C. kozarensis Oláh, sp. nov., C. psunjensis Oláh, sp. nov., C. tompa Oláh, sp. nov., with three species status resurrections: C. papukensis Oláh & Szivák, 2012 stat. restit., C. prealpensis Oláh, 2012 stat. restit., C. zalaensis Oláh, 2012 stat. restit. Psilopteryx psorosa new species group erected and revised with three new sibling species complexes: P. bohemosaxonica, P. carpathica, P. psorosa, with two new species descriptions: P. javorensis Oláh, sp. nov., P. harmas Oláh & Chvojka, sp. nov. with one species status resurrection: P. carpathica Schmid, 1952 stat. restit., with three new species status: P. bohemosaxonica Mey & Botosaneanu, 1985 stat. nov., P. retezatica Botosaneanu & Schneider, 1978 stat. nov., P. transylvanica Mey & Botosaneanu, 1985 stat. nov.

The subspecies of the biological species concept with incomplete reproductive isolation versus the incipient sibling species of the phylogenetic species concept with permeable reproductive barrier are still applied side by side in the everyday practice of taxonomy. Both terms refer to the same organisms diverged mostly in allopatry with various stages of repro-ductive isolation. Question remained: how human ranks these entities organised by nature? The reliable ranking of living hierarchies is retarded and even obscured by the suppressed state of taxonomy. Disappointing scenario: the science of biodiversity is stuck in century old macromorphologies without innovation of fine phenomics and without exploring its high-tech and high-throughput potential. The empirical science of taxonomy is “modernised” by the neutral DNA marker industry diverting the epistemological focus from empirical to virtual. Virtuality of noumenon is used to camouflage the phenomenon of the adverse environmental processes, the wasteful byproducts of the profit oriented liberalized economy. The sensual reality of species and the accelerated species extinction is effectively masked by the virtual sciences of the abstract: numbers, data, statistics, algorithms, equations, models and ideas. To understand the birth of a young incipient species we have briefly reviewed the postmodern development of the unified phylogenetic species concept. (1) The reality of species and higher phylogenetic taxa. (2) The biological and phylogenetic species. (3) How to delineate phylogenetic species? (4) The infinite versus finite division of phylogenetic species. (5) The construct of the unified species concept. (6) Taking subspecies and race out of science. Without recognition of incipient siblings of the phylogenetic species the biodiversity remains under-estimated and the pharisaic anti-science ranking of humans remains with us. The discovery of speciation trait that is the sexual adaptive structures in reproductive barrier building, which are detectable by fine phenomics, gives perspective to find the finite division, the dynamic initial split in the continuous process of diversification. The speciation traits produced by integrative organisation, as opposed to competitive selection, help to unify the operational criteria of the biological species concept that is the speciation by reproductive isolation with the general concept of phylogenetic species that is the causal process of the separately evolving metapopulation lineages. The subspecies and racial ranking is untenable anymore, we suggest taking subspecies and race out of science: the finite division of the initial split detected by speciation traits is the birth of the phylogenetic incipient sibling species. There is no “subspecies”and “races”, as there is no “subindividual” in the biological organisation. In the present caddisfly taxonomy the subspecies remained as a valid status in the Potamophylax cingulatus caddisfly species group. With a clear distinction between the neutral and adaptive traits in the P. cingulatus species group and applying the subtle and stable shape divergences in phallic fine structures we have proposed to change the taxonomic status of subspecies to incipient sibling phylogenetic species rank: Potamophylax alpinus stat. nov., P. depilis stat nov., P. ibericus stat. nov., P. inermis stat. nov., reinstated the species status of P. cingulatus stat. restit. and we have described three new species: P. fesus Oláh, P. portugalicus Oláh et Szczesny, and P. transalpinus Oláh & Coppa, spp. nov.