btocti' 

 lata. 



350 CLAS. III. SYNIST. Ephemera. 



Ephemera nigra , cauda triseta . Ceoffr, Ins. 2. 



p. Z3 9. 4. 

 In Europce aquosis . 



^^ Catida biseta . 

 4. Ephemera cauda biseta , alis albis retlculatis , 



capite tuberculis duobus luteis . Fabr. Sp. Ins, 



I. p. 384. Ltnn. Syst. Nat. 1. p. 906. j. 

 £phemera lutea , alis albis reticulatis , cauda bi- 



seta . Geojfr. Ins. 1. p. 239. 5. tab. 13. fig.4, 

 In Europa: aquis . 

 CaHddt, alb& fHsco-pHtictatA corpore loyighres . Ab- 



domen diaphannm . 

 horarta , 5. Ephemera cauda biseta , alls albis , marglne 



crassiori nigricante , Fabr. Sp. Jns, i. p. 38/, 



Linri, Syst. Nat.t, p. 907, 5;. 

 Ad Europs aquas frequens . 

 Esca piscium ex hac et congeneribus prAstantissima, 



6. Ephemera cauda biseta •« alis albis , corpore fusco, 

 Fabr.SpJns.i.p. ^^^.Linn.Syst. Nat. z. p.907.8, 



In Europs aquosis . 



7. Ephemera cauda biseta , alls hyalinis striatis, 

 thorace fusco , abdomine albo . Fabr. Sp. Ins, 

 I. p. 585. Linn, Syst. Nat. 1, p. 907. 10, 



Habitat in Europa . 



8. Ephemera cauda biseta , alls duabu<; , costa 

 marginali fusca cinereo u\ac\j\u2l . Fabr.Sp. Ins, 

 I. p. 385. Linn, Syst. Nat. 2. p.907. 11. 



Ephemera diptera bicaudata grlsea , abdomine li- 

 neolis rubris , alarumque margine brunneo al- 

 bo-maculato. Degeer.Ins.i, p. 6^6, j.tab.iS.fig.j, 



In Europ^ aquosis , 



ettlicf' 

 formis 



striata 



diptera 

 tab. 4, 

 fig, I, 



102. 



