Description.Measurements(mm).Overalllengthincludingtegmen:male12.4–14.2;prono-tumlength×width,male2.4–2.8×3.0–3.7;tegmenlength,male10.7–11.8.Diagnosis.Theseventhabdominaltergumunspecialized(Fig3C3);thehindmarginofsub-genitalplatewithtwospine-likeprocesses(Fig3C1);theleftstyleabsentandtherightstylestraight.Usingthesetraits,S.normalissp.nov.canbedistinguishedfromitscongenericspecies.Male.Bodyblackishbrown.Vertexandfaceblackishbrown.Baseofantennaeyellowishbrown,therestblackishbrown.Thefourthandfifthsegmentmaxillarypalpomereblackishbrown,therestyellow.Pronotaldiskblackishbrownorbrown,themiddlewithaninconspicu-ouslongitudinal,yellowishbrownregion.Tegminayellowishbrown,hind-winglongitudinalveinsbrownblackishbrown.Abdominaltergabrownishyellow(S4E–S4FFig).Interocularspacenarrowerthanthedistancebetweenantennalsockets.Thefourthandfifthsegmentofmaxillarypalpussameinlength,slightlyshorterthanthethird.Pronotumsub-elliptical,posteriormarginslightlyconvexmedially.Tegminaandwingsfullydeveloped,extendingbeyondendofabdomen.Moftegminawithtwobranches.Hind-wingRAandRPparallelandinflated,Mwithoutbranches,CuAwithtwocompletebranches,apicaltriangleevident.FrontfemurTypeB3,pulvillionfourproximaltarsomeres,tarsalclawssymmetrical,unspecialized,aroliapresent.Theseventhabdominaltergumunspecialized(Fig3C3).Supra-analplatesymmetrical,hindmarginweaklyconvexmedially,twolateralmarginswithtwospine-likeprocesses;theleftparaproctwithtwobranches,theapexacute,andtheleftbranchbentupward;therightparaproctwithtwotothreesmallspinesattheapex(Fig3C2).Subgenitalplatewithasymmetrical,hindmargindeeplyexcavated,twolateralmarginswithsomebrownspines,alarge,straightprocessarisingondorsalsurfaceanditsapexwithtwospine-likesmallbranches(Fig3C1).Theleftstyleabsent.Therightstylecurvedtoright,theleftsidewithaspine.Hookedphallomere(L3)ontherightside.L2vmrod-like,apexacute.R3consistingoftwosclerites(Fig3C1).