210 Swiss Diurnal Lepidoptera. 



both are common in the same spots, individuals occur 

 which are as referable to one species as the other. 



44. Alliouia, and 



45. Statilinus. I must confess I see no clear reason for se- 



parating these two. In the Lower Valais, from Mar- 

 tigny to Varogne, these flies are found in the spring, 

 and in still greater numbers late in autumn ; and with 

 such slight shades of difference (es lassen sich da solche 

 iibergange nachweisen) that we know not whether to 

 consider them as Allionia or Statilhius. It seems to 

 me that the latter is merely a faded state of the former. 

 (Boisduval has them both as synonymes of Fauna Fab.) 



46. Phse v dr<z. Not rare in many places near Berne in Aug. ; 



very common in all parts of the Valais ; and the fe- 

 male often of an extraordinary size and beauty. 



47. Cordultf. Valais, July and August ; very common about 



Bex (Cant, de Vaud); it is also found on the Wengen 

 Alp. The female varies much in the number of ocelli 

 on the fore wings. 



48. Semete. Not rare in August on stony arid spots. 



49. Aello. June and July, on the Grimsel, Meyenwand, 



south side of the Gemmi ; Surenenthal, behind Engel- 

 berg ; and, lately, on the Wall Alp, at the foot of the 

 Stockhorn. (I have also taken it on the Ralligfluh, 

 above the Lake of Thun.) 



50. Tithonous. Near Zurich, between Berne and Neufchatel; 



Canton de Vaud, &c. ; not rare. 



51. Jamra. July to Sept. very common in all meadows. 



52. Eudortf. Common in all parts of the Valais. 



53. Hyperanthus. Common in all meadows. The variety 



with white spots on the under side, Hubn. f. 173., of 

 which some make a species, Arete, is met with here 

 and there. (Boisduval says variety Arete absque oculis.) 



54. Dejanira. In Argovia near Zurich, Kaiserstuhl near Lun- 



gern, in June, in woods especially of alder; not rare. 



55. Mae v r#. In July and August common on roads and 



stony places; varies much in shade of colour and 

 in size. 



56. MegaMY/. From May to autumn, on walls, roads, dry 



places, gravel-pits, &c, very common. 



57. Egeritf. In woods ; common. 



58. Galathea. From June to August, in all meadows. Near 



Louesch, in the Valais, is found a variety, in which the 

 black is so much suffused, and, particularly on the 

 hind wings, the white spots are so much narrower, as to 

 produce in the male distinct ocelli, I have also a 



