Systematic Notes On Kiotina Klapálek And Hemacroneuria Enderlein (Plecoptera: Perlidae), With Description Of Four New Species Author Stark, Bill P. and Ignac Sivec & Box 4045, Department of Biology, Mississippi College, Clinton, Mississippi, U. S. A. 39058 E-mail: stark @ mc. edu stark@mc.edu Author Sivec, Ignac Slovenian Museum of Natural History, Prešernova 20, P. O. Box 290, SLO- 1001 Ljubljana, Slovenia E-mail: isivec @ pms-lj. si isivec@pms-lj.si text Illiesia 2008 4 17 161 175 journal article http://doi.org/10.5281/zenodo.4754771 a60c41ef-ab6a-406c-af1d-a0cf0face281 1854-0392 4754771 Kiotina bifurcata sp. n. ( Figs. 1–4 ) Material examined. Holotype ♂ (pinned, forewings missing) from China , Fujian Province , Kuatun , 2300 m , 27.4 ° N , 117.4 ° E , 1 April 1938 , J. Klapperich ( ZFMK ). Adult habitus. Apparently biocellate, anterior ocellus absent or obscure. Body color dark brown to black. Head and pronotum black. Ocelli widely spaced, nearer eyes than each other. Pronotum widest medially, bearing rugosities. Meso and meta nota dark, abdomen paler. Legs and antennae dark. Male. Forewings missing, hind wing length 12 mm . Tergum 10 armed with a pair of forked, lateral spines and a subterminal pair of dark projections. Epiproct sclerite with well developed long, slender arms arising from a short base ( Fig. 1 ). Paraprocts curved forward over tip of abdomen. Aedeagus incompletely everted but membranous and bearing a pair of lateral arm-like lobes ( Figs. 3-4 ); apical area of aedeagus complexly lobed. Hammer oval and set near posterior margin of sternum 9 ( Fig. 2 ). Female. Unknown. Larva. Unknown. Etymology. The species name is based on the distinctive, forked lateral spines on tergum 10. Diagnosis. This species is distinguished from known Kiotina by the bifurcate tergal spines and by the long, slender epiproct sclerite Y-arms. We have seen a similar specimen from Guangxi Province , China , but do not have sufficient data to determine its status.