2 1 8 Swiss Diurnal Lepidoptera. 



137. napi. As the foregoing, common everywhere, in April 



and July. Hiibner's dark-coloured fly (f. 407.) is 

 certainly merely a variety of the female, which is not 

 rare on the Alps. Wallner's observation, in Illiger's 

 Magazine, that it is found in few Alpine spots, and not 

 lower than 1100 toises, is unfounded; as I have taken 

 it in much lower situations, and even on the Jura : in 

 1808, also, on the Molesson, in coitu with the common 

 male. (The Molesson is only 5047 ft. above the sea. 

 I have also frequently taken it below the elevation of 

 1 100 toises. It is the variety separated by some under 

 the name of bryoniae. Meisner makes another ob- 

 servation, also, that Esper's and Hiibner's napae'ae is a 

 mere variety of napi ; in which most are willing to 

 agree.) 



138. Callidice. Highest Alps; ex., Oberaar, Gemmi, Cher- 



benon. I have, however, taken it in valleys ; as at 

 the southern foot of the Gemmi above the baths, and 

 by the glacier of the Rhone : it flies very quickly, and 

 is difficult to take. 



139. Daplidice. Near Berne, in spring and August, rarely; 



very common in the Valais. 



140. Belitf. According to Jurine, on steep summits in the 



Allee Blanche and also on the Great St. Bernard. 



141. Ausoniff. Chamouni, and Great St. Bernard. (The 



variety simpl5nia, which many consider as a distinct 

 species, is rare on the Simplon, &c, in June and July.) 



142. cardamines. Spring and autumn ; common. 



143. sinapis. Everywhere, in May and July. 



Co x lias. 



144. Edusa. From August till late in autumn ; common on 



both plains and mountains. The female variety He- 

 lice is often found near Berne; and I took it, in 1810, 

 on the Alps of the Valley of Tremola (southern de- 

 scent of St. Gothard). 



145. Phicomone. On Alps, near the lake in the Oeschenen- 



thal, Gemmi, Scheideck, Grimsel, &c. It flies in the 

 hottest part of the day with incredible swiftness, and 

 always in a straight line, so as to ta caught with diffi- 

 culty ; but in the afternoon it often reposes on flowers, 

 as if fatigued, and is then easily taken. 



146. Hyale. Common in May, and from August till late in 



autumn, on meadows and sunny slopes. 



147. Palae v no. On the Higher Alps ; ex., Grimsel, Meyen- 



wand, highest part of Jura, at the Lake of Etalieres, 



