Vol. 107, No. 5, November& December, 1996 327 A NEW SPECIES OF PILOSANA FROM COSTA RICA (HOMOPTERAiCICADELLIDAE)1 M. W. Nielson2 ABSTRACT: A new species of leafhopper, Pilosana bivirgata, is described and illustrated. EighteenspeciesnowcomprisethisNeotropicalgenusinthetribeYoungolidiini. ThegenusPilosanawaserectedbyNielson(1983)inthetribeYoungolidiini (Coelidiinae) and 13 species, mostly from Brazil, were treated. Four new spe- cies from Brazil were subsequently described by Nielson (1992). This paper describes athird species fromCostaRica, which represents the extreme north- ern range ofthis Neotropical group. Pilosana bivirgata, NEW SPECIES Figs. 1-5 Lengthmale,7.30mm. Generalcolorblack;forewingwithbroadyellowlongitudinalstripeonclavus,apexandcosta tingedwithpale markings. SimilartoP. bifurcata Nielson in male genital characters butalarger specieswithdistinctivelobeoncaudoventral marginofpygofer. Dorsalandventralfeaturesasindescriptionofgenus. Male. Pygoferwith single tuftofshort setae and large caudoventral lobe (Fig. 1), lobe with smalltoothon ventromedial margin (Fig. 2); aedeagusnarrowwith asymmetrical, bifurcate, sub- apical process on ventral margin, gonopore subapical on lateral margin (Fig. 3); style typical of genus(Fig.4);platelong,narrow,withlongmicrosetaesubbasallyandapically(Fig.5). Female. Unknown. Holotype (male). COSTA RICA: Puntarenas, Monte Verde, 1400 m. 14-16.VII.1989, light intercept trap, Robert E. Beer (UK). Paratype male, same dataas holotype, in collection ofthe author. Remarks.Thisspeciesisoneofthelargestinthe genusPilosanaandcanbe distinguished from bifurcata by its much larger size, the large dentate caudo- ventral lobe ofthe pygoferand by the yellow stripe on the clavus. The species keys to couplet 1 1 in my 1983 paper. 1 ReceivedFebrury 10, 1996.AcceptedApril 30, 1996. 2MonteL. Bean Museum,BrighamYoungUniversity,Provo, UT84602. ENT. NEWS 107(5)327-328,November& December, 1996 328 ENTOMOLOGICALNEWS Figs. 1-5. Pilosanabivirgata, n. sp. 1. Male pygofer, lateral view. 2.Apex ofmale pygoferand processes,ventralview.3.Aedeagus,lateralview.4.Style,lateralview.5. Plate,ventralview. ACKNOWLEDGMENTS I thank James S. Ashe, Snow Museum, University of Kansas, Lawrence (UK) for loan of material,H. DerrickBlocker, KansasStateUniversity,Manhattan,ChrisDietrich, IllinoisNatural HistorySurvey,Champaign,andStephenW.Wilson,CentralMissouriStateUniversity,Warrensburg forreviewingthepaper LITERATURECITED Nielson,M.W. 1983.ArevisionofthesubfamilyCoelidiinae (Homoptera:Cicadellidae). PartV. NewtribesHikangiini,Youngolidiini,andGabritini. PacificInsectsMonograph40, 1-78. Nielson, M. W. 1992. New species ofNeotropical leafhoppers in the tribeYoungolidiini with a revisedkeytospecies(Homoptera:Cicadellidae:Coelidiinae).Entomol. Scand. 23:289-296.