164 Rey. A. H. Eaton on the Ephemeride. 
Tas. VI.—contin. 
Fig. 27. Heptagenie lateralis, g im. genitalia infra. 
28. ay zebrate, » genitalia infra. 
29. Isonychie ignote, » apex penis infra, 
ADDENDA. 
Page 47. To Centroptilum luteolum, add Hudson’s Bay Territory. 
To Centroptilum pheops, add Norway (Hammerfest and Alten). 
Page 68, note.* Add—Ephemerum, Tournefort (1694-1700) =Tradescan- 
tia, Lin., is the typical genus of Ephemere, Batsch (1802) 
=Commelynacee, an Order of Endogens. Hphemerum, 
Dodon (Ersch & Griiber) or Reichenbach (Lindley) = 
Lysimachia, Lin., a genus of Primulacee. 
Page 134. In Isonychia, the termination -onychia is adopted on account 
of -onyx being used as a generic termination in the names 
of some Chelonii. Ephemera pudica, Hag., is almost cer- 
tain to be identical with I. manca; this species often has a 
close reticulation contiguous to the veins of the inner mar- 
gin of the fore-wing, somewhat like that in the wing of 
Polymitarcys. 
