Notes on the Ephemerid(£. 387 
Page 1 9. [Between iridana and lateralis insert Krueperi, 
Stein ; in Potamanthus, Stein ; (?) Leptophlebia, Etn.] 
Page 19, line 12 from bottom. [For insignis read longi- 
cauda.~\ 
Page 20, line 4. [For nov. sp. read = undatus.'] 
„ line 10 from bottom. [Dele " either a Hepta- 
genia, or."] 
Page 21, line 7 from bottom. [Omit all the citations 
after Burm., and instead of them read = dimidiata.^ 
[Then between lactea, Burm., and luctuosa, Burm., insert 
X lactea ! Pict &c. = chironomiformis ?] 
Page 22, line 17. [Before ? im. insert = Polymitarcys.~\ 
Page 23, line 13. [Dele ? ; before im. insert undatus $ .] 
„ line 15. [Before ? insert undatus.'] 
Page 24, line 3. [Omit all after 206, and read = Lepto- 
phlebia.] 
Page 24, line 10. [Omit all after 476, and read = Lep- 
tophlebia.] 
Page 24, line 11. [For Cloeon ? S read Baetis ? ,] 
Page 26. [Between cincta, Retz., and cognata, Ste., 
insert citrina, Hummel, Ess. Ent. iv. 21 = Heptagenia 
elegans, subim. ?] 
Page 27, last line. [Dele longicauda.] 
Page 29, line 9. [Dele Seetzen (1794).] 
„ line 12. [Before Pz. insert Seetzen (1794).] 
Page 30, line 8. [For (sp. ?) read dimidiata, subim. ? ,] 
Page 32, line 3. \Yov Baetis ? resid Polgmita7'cgs albus.] 
„ [Between elegans, Curt., and Jlaveola, Pict., 
insert jfaZZao;, Hag. ; in Baetis, Hag.] 
Page 33, line 6. [After Pict. add Typ. H. limbata.] 
„ line 18. [AfterWalk. addTyp. Z. mttr^^ewa^a.] 
„ line 35. [Add = Baetis.] 
