Notes on the Ephemeridce. 385 
Pages 13, 14. 1858-9, 1861, 1863.— H. A. Hagen. 
My collection is only worked out in Ephemera, Polingenia, 
Olicjoneuria and Canis. The rest are scarcely at all 
studied. It is ratlier rich in European and North American 
species ; but in those from other countries it is almost 
tabula rasa, containing only some isolated examples. 
Most of the specimens are old ; some of them, fifty years 
or more of age, are not preserved so well as I should like ; 
but you know that it is impossible to set old ones, they 
would not bear to be relaxed. ... I find that I have 
separated in my collection 160 species. There are besides 
a lot not classified from Central Russia, Siberia, Caucasus, 
&c., making in all more than 2,000 specimens. But 
some are very bad, and if re-arranged the number of speci- 
mens and perhaps of species would be smaller. 
A List of the Ephemerfe of Hungary sent to me by 
Frivaldszky gives only the follomng names : Ccenis lactea. 
Paling, longicauda, Oligoneuria pallida, Potam. gibbnsij), 
P. CBneus (?), Cloeon dipterum and another allied species, 
a species allied to C. melanonyx (?), Baetis sulphurea (?), 
cerea, wa^di Jlumiyium (?). The specimens are still in my 
collection. A List of the Ephemera3 of Bavaria still in 
my collection sent by Dr. Kriechbaumer gives E. vulgata, 
Tegernsee, common, June. E. Danicn, very common, 
Munich, June. E. lutea, Burm. {lineata (?) ), Tegernsee, 
June ; Munich, July. Potam. Geerii, Tegernsee, Mu- 
nich, July. CI. piimila, Munich, June. Baet. venosa, 
Tegernsee, May — July. B. lateralis, Tegernsee, Munich, 
April to July. B. Jluminum, Munich, June, July. 
[M. de Selys-Longchamp's specimen of E. Hecuba is not 
Dr. Hagen's type as I supposed.] I possess types oi 
Walsh's species: Baetis femoralis $ $, sub. $ ^•, B. 
alternata S $, sub. $ 9 ; arida $ ; sicca $ $, sub. $ 2 ; 
debilis $ $. Pot. ciipidus sub. $ $ ; odonatus $ $ im. 
Pal. vittigera $ , sub. $ ; limbata. S ; bilineata $ $ , sub. $ ; 
Jlavescens $ $, sub. $ $ ; interpunctata $ $ : pulchella. 
$ ? , sub. $ $ ; terminata $ $ , sub. $2. E. decora $ ; 
Jiaveola $ $,sub. $ ; myops $. Ephemerella excrucians 
$ $ , sub. $ . BcBtisca obesa $ 2 , sub. $ 2 , pupa. Cloe 
ferruginea $ ; JiucttLans $ ; vicina $ $, sub. $ ; debilis 
$ $, sub. $ ', mendax $ $ ; unicolor 2. Only two are 
wanting, — P. A.-punctata. and Ccenis amicus. \_Ephemerella 
consimilis and Cloe dubia. are not given in the list.] 
Besides Walsh's types my collection contains, with few 
exceptions, only the types of my Ceylon and American 
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