Zwick Peter. 2016. Designation of a type species for Formosita Klapálek, 1914 (Perlidae: Perlinae). Illiesia, 12(05):25-26. Available online: http://illiesia.speciesfile.org/papers/Illiesia12-05.pdf http://zoobank.org/ urn:lsid:zoobank.org:pub:272904EC-0421-4906-BBBE-8A33DAF18A58 Illiesia – http://illiesia.speciesfile.org Volume 12 – Number 5 – Page 25 DESIGNATION OF A TYPE SPECIES FOR FORMOSITA KLAPÁLEK 1914 (PERLIDAE: PERLINAE) Peter Zwick Schwarzer Stock 9, D-36110 Schlitz, Germany E-mail: pleco-p.zwick@t-online.de ABSTRACT Neoperla costalis (Klapálek 1913) is designated as type species of Formosita Klapálek 1914. An earlier type designation by Klapálek (1923) is considered invalid. Keywords: Flavoperla, Formosina, Formosita, Neoperla, originally included species, synonymy, type species designation During work on the African Neoperla (Perlidae: Perlinae) I wondered about the relations between various species groups and checked to which group the type species of genera synonymized with Neoperla belong. Among these genera is Formosita Klapálek 1914, a replacement name for the preoccupied name Formosina Klapálek 1913 (not Becker 1911). The type species would be the Japanese Neoperla hatakeyamae Okamoto 1912 (Illies 1966, Sivec et al. 1988, DeWalt et al. 2016), allegedly by original designation. This is an error, the type designation was secondary and much later (Klapálek 1923: 173), as recorded by Claassen (1940). However Klapálek's type designation (1923) is invalid: Neoperla hatakeyamae was not originally included in Formosita. Formosita was proposed for only two species from Taiwan, F. taihorinensis Klapálek 1913 and F. costalis Klapálek 1913. Both species were redescribed, male lectotypes designated, and the taxa transferred to Neoperla (Sivec & Zwick 1988). The female paralectotype of N. taihorinensis (Klapálek 1913) lacks the tip of the abdomen, but some eggs were nevertheless recovered from the base of the abdomen. The egg of N. costalis (Klapálek 1913) is not available but the genitalia of both sexes are known, which is important for the assignment to a Neoperla species group. Neoperla costalis (Klapálek 1913) is here designated as type species of Formosita. The structure of the penis and the short simple duct to the seminal receptacle attaching to the front of the strongly folded vagina indicate it belongs to the N. montivaga-group of Neoperla (Zwick 1977, Sivec & Zwick 1988). E. DeWalt and B.P. Stark are sincerely thanked for important advice, and B. Kondratieff for linguistic improvements. REFERENCES Becker, Th. 1911.Chloropidae, eine monographische Studie, III. Teil: Die indo-australische Region. Annales historico-naturales Musei nationalis hungarici 9:35-170. Chu, Y.T. 1929. Descriptions of four new species and one new genus of stone‐flies in the family Zwick Peter. 2016. Designation of a type species for Formosita Klapálek, 1914 (Perlidae: Perlinae). Illiesia, 12(05):25-26. Available online: http://illiesia.speciesfile.org/papers/Illiesia12-05.pdf Illiesia – http://illiesia.speciesfile.org Volume 12 – Number 5 – Page 26 Perlidae from Hangchow. China Journal, 10:88‐ 92. Claassen, P.W. 1940. A catalogue of the Plecoptera of the world. Cornell University Agricultural Experiment Station, Memoir 232:1-235. Ithaca (N. Y.). DeWalt, R.E., M.D. Maehr, U. Neu-Becker, and G. Stueber. 2016. Plecoptera Species File Online. Version 5.0/5.0. [2 July 2016]. Illies, J. 1966. Katalog der rezenten Plecoptera. Das Tierreich. Lieferung 82: I-XXX; 1-632. de Gruyter & Co, Berlin. Klapálek, F. 1913. H. Sauter's Formosa-Ausbeute: Plecoptera II. Supplementa Entomologica 2:112- 127 + Plate 3. Klapálek, F. 1914. Berichtigung. Supplementa Entomologica 3:118. Klapálek, F. 1923. Plécoptères II. Fam. Perlidae. Collections Zoologiques du Baron Edm. de Sélys-Longchamps, Catalogue systématique et déscriptif, Fasc. 4 (2):1-193. Hayez, Bruxelles. Okamoto, H. 1912. Erster Beitrag zur Kenntnis der Japanischen Plecopteren. Transactions of the Sapporo Natural History Society, 4 (1911- 1912):105-170. Sivec I. & P. Zwick. (1988): Some Neoperla from Taiwan (Plecoptera: Perlidae). Beiträge zur Entomologie 37 (1987):391-405. Sivec, I., B.P. Stark, & S. Uchida. 1988. Synopsis of the world genera of Perlinae (Plecoptera: Perlidae). Scopolia 16:1-66. Uchida, S. 1990. A revision of the Japanese Perlidae (Insecta: Plecoptera), with special reference to their phylogeny. PhD-thesis, Tokyo Metropolitan University, 228 pp; unpublished. Zwick, P. 1977. Ergebnisse der Bhutan-Expedition 1972 des Naturhistorischen Museums in Basel. Plecoptera. Entomologica Basiliensia 2:85-134. Submitted 2 July 2016, Accepted 19 July 2016, Published 25 July 2016 Hosted and published at the University of Illinois, Illinois Natural History Survey, Champaign, Illinois, U.S.A.