igo 



THE BRITISH NATURALIST. 



rSEPTEMBfiR 



P. brassicee. — April 30th. (End of April). Though an odd specimen 

 (which 1 did not see myself] was taken the last day of April, it 

 was not till nearly the end of May that it was out in any 

 quantities, then it simply swarmed and the specimens were very 

 fine. 



P. rapae. — March 6th. (April). Common, but at no time as abun- 

 dant as Brassicee and in no way differing from English specimens. 

 P. napi. — March 6th. (April). Fairly common. 



E. cardamines. March i8th. (April). Not plentiful, the few 

 specimens 1 took were not so fine as I used to obtain them in 

 Brittany. These had a larger blotch than English specimens. 



L. sinapis. - April 15th. (June 6th). Not common, 1 took a short 

 series of good specimens towards the end of April, all males. 



C. edusa. — March igth. (June 8th). Not at all plentiful, one small 

 taken on March 19th, one good $ and two others missed on 

 June 5th, one worn Helice and some others missed on June 15th. 



G. rhamni. —February. (April). This was certainly one of the 

 species of Biarritz, from February till we left (June i8th) it was 

 always plentiful, and towards the end of that time you could 

 obtain it in every stage, hybernated imagines, ova, larvae, and 

 pupae. I should have liked to see whether the old imagines were 

 still on the scenes when the new ones made their appearance. 

 On the 25th April we watched a female depositing eggs, on June 

 5th we took larvae in all stages and a few days later were 

 fortunate enough to see one of them in the act of changing to a 

 pupa, many were its struggles and contortions before it finally 

 emerged the lovely and peculiar shaped green chrysalis. 



T. rubi. — April 15th. (May 17th). Fairly plentiful in rough places, 

 among gorse, etc. 



L. argiades v. polysperchon. — April 25th. This exquisite and 

 delicate little insect was fairly plentiful all through May, the best 

 spot being a field put up for hay in a sheltered valley. The 

 males were more numerous than the females also a trifle larger. 

 They varied from 0*85 to i"05. 



L. baton. — April 30th. Four specimens only taken, one worn 

 2 , on the date above, on rough ground, one ^ and two $ , all good, 

 a month later m a meadow near the town. 



L. medon. — May ist. Four specimens only taken, two J and two 2 , 

 they are a trifle larger than those taken here, but, otherwise, of 

 the same form, as also are specimens I have from tlie north of 

 France, i.e., the ? with a complete border of orange spots, J more 

 or less without the spots at the costa. upper side ; the white 



