NOTES ON THE BUTTERFLIES OF THE SOMME. 147 



Aglais urticce. — Common everywhere. 



Vanessa io. — Fairly plentiful. 



Pyrameis atalanta. — Only a few seen during August. P. 

 cardui not seen. 



Dryas paphia. — Found in all the larger woods ; var. valezina 

 not seen. 



Argynnis oglaia. — Common in suitable localities throughout 

 the Somme. First male seen May 29th, which appears to be a 

 very early date. 



Brenthis euphrosyne. — Common in the Foret de Vignacourt. 

 B. selene not seen. 



Melitcsa cinxia. — Plentiful during May round about Belloy- 

 sur- Somme. M. aurinia. — Fairly common at Picquigny in the 

 marshy fields, and doubtless all along the course of the Somme. 



Melanargia galatea. — Very plentiful at Frechencourt during 

 July. 



Hipipjarchia semele. — A few taken on the chalk hills bordering 

 the Somme at Hangest. 



Pararge egeria var. egerides. — Fairly common in woods at 

 Frechencourt. P. megcera. — Very abundant everywhere. 



Epinephele jiirtina. — Common in many places near the river. 

 E. tithonus. — Large numbers seen in fields near Long. 



Aphantopus hyperanthus. — Very plentiful in some damp woods 

 near Frechencourt. Two specimens of var. lanceolata taken. 



Ccenonymptha pamjjhilus. — Found throughout the Somme area, 

 but I did not note much variation in any of the specimens. 



Thecla w-albuyn. — One chrj'salis found in May and four or 

 five butterflies seen on the wing in July. 



Callophrys ruhi. — Fairly common in many parts of the Foret 

 <le Vignacourt. 



CJirysophanua hippotho'e. — A specimen which tallies with the 

 description of this butterfly taken near Corbie. Unfortunately, 

 the store box containing it was smashed in transit to England 

 and the specimen destroyed. C. dispar, var. I'litilus ought to be 

 found on the Somme also, the food-plant R. hydrolapathiim being 

 , very plentiful in places. C. phlceas. — Fairly common, 



Plebeius cegon. — One male taken near Flixecourt in early 

 August. 



Aricia medon. — A few seen on the chalk hills near Hangest. 

 They all appeared to be similar to those found in the South 

 of England. 



Polyommatus icarus. — Common throughout the Somme. 

 Three female ab. coeridea and two fine ab. icarinus taken. 



Argiades corydon. — Seen in fair numbers at the end of July 

 near Long. No varieties taken. A. bellargus. — Common on the 

 chalk hills near Hangest in May, and again in late July. 



Celastrina argiolus. —A few taken in early May. Did not see 

 any of the second brood. 



