New Species And Records Of Neoperla (Plecoptera: Perlidae) From Vietnam 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 2008-03-20 4 3 19 54 journal article http://doi.org/10.5281/zenodo.4758856 564cead7-264a-4ee4-b5ee-15fd3ba81657 1854-0392 4758856 Neoperla cavaleriei (Navás) ( Figs. 88‐90 ) Ochthopetina cavaleriei Navás, 1922:49 . Lectotype ♂ (Muséum National d’Histoire Naturelle) designated by Sivec & Zwick, 1987 . Kouy‐ Tcheou Material examined. Vietnam : Cao Bang , Ba Be National Park between gates and dorms, 22 May 1995 , D. Currie , J. Swann , M. McGuffin , ROM 956119, 2 ♂ ( ROM ). Same site except near dorm annex, 14‐23 May 1995 , D. Currie , B. Hubley , J. Swann , ROM 956049, 2 ♂ ( ROM , IEBR ). Same site except 20 May 1995 , D. Currie , J. Whiting , ROM 956106, 2 ♂ ( ROM , BPS ) . Cao Bang , Ba Be , 1 July 1995 , C.F. Lee , 11 ♂ , 6 ♀ ( PMSL ) . Gia Lai , An Khe District , Tram Lap , Azun River , 3 km NE forestry building, 21 June 1996 , D. Currie , J. Swann , ROM 961076, 1 ♂ ( ROM ) . Remarks. Sivec & Zwick (1987) redescribed this species from the lectotype and indicated an unusually large range including China , Vietnam , Laos , Thailand and Myanmar . The subtle variations in aedeagal armature they note suggests this is a probable species complex which will require more material from throughout this range in order to gain resolution. Our sample shows little variation in aedeagal armature; the aedeagal tube is slender, sclerotized and bears minute spinules on the apical third. The sac has a prominent dorsobasal spiny cushion, a mid dorsal row of medium size spines and three irregular lateral rows of larger, cultriform spines imbedded proximal to a ventral grouping of fine spinules. Figs. 88‐90 show the first SEM images for the egg of this species.