406 Dr. Hagen's and the Kev. A. E. Eaton's Notes. 
a dried male of H. longicauda. Dr. Hagen's description 
in the Brit. Synoj^. seems to be compiled from Pictet, and 
not to have been drawn up from Enghsh insects.] 
Page 155. Heptagenia zebrata. Your reduction of 
the Corsican species described by me is apparently erro- 
neous. I give here the diagnoses of the forceps and 
penis. Your f. 24 is probably y«//«^, but (as you see) it 
is very different from the zebrata andjlumi?ium. I cannot 
find the others in your work. In zebrata the antepenulti- 
mate joint of the forceps has a lamellose dilatation on the 
inside after the middle. The apical border of the last 
ventral segment is strikingly different. 
[The examples sent me by M. de Selys-Longchamps 
were in bad condition. I could not make satisfactory 
di*a^\angs of details of zebrata ovfallax fi'om them. My 
figure was taken from the S im., labelled B.Jiinninum, 
Hag. Of my descriptions that of the subimago was 
taken from specimens labelled respectively zebrata and 
fall ax ; that of the imago $ from a specimen labelled 
Jiuminum (the subject of my figure) ; and that of the 
imago $ fi-om a specimen labelled zebrata. The only 
S imago amongst them was that which stood for my 
drawing.] 
Page 156, foot-note. E. gemmata. Scopoli's figure is 
thoroughly bad, and only shows that the insect is a large 
Heptagenia. Amongst the Epliemeridce from Carinthia 
sent by Schmidt to me is a s])ecies which agrees so well 
with Scopoli's description that I have no doubt of its being 
the same insect as his. I have my types before me. It is 
a Heptagenia very nearly related to your H. venosa. It 
is wanting in Steph., Burm., Ramb. and Pict. .[For fiu'- 
ther particulars see above. Note to p. 151, near the end 
of the paragraph, by Dr. Hagcn.] 
