88 the entomologist's record. 



On June 19th, at Chalfont Road, I met with a case spun up on the 

 stem of a wild rose, between the thorns. This produced an imago on 

 June 29th. 



Butterflies in South Germany during the Spring and 

 Early Summer of 1906. 



By G. L. KEYNES. 



As it had been arranged that I should spend five months of the 

 first half of 1906 (February lst-June 21th) in South Germany, I 

 determined that a study of the German language should be judiciously 

 and pleasantly combined with a study, as far as possible, of the butter- 

 flies of the district. The former study, however, I dutifully regarded 

 as the more important, and this must serve to account for the incom- 

 pleteness of the following note. 



My headquarters were at a small manufacturing town called Lahr, 

 some thirty miles north of Freiburg. The nature of the country is 

 varied ; for, on the one hand, are the heights of the Black Forest, on 

 the other the absolutely level plain of the Rhine Valley. The latter I 

 found ^to be incomparably the more productive, for, on it, tracts of 

 luxuriant cultivation alternate with large wooded districts, formed of 

 the kind of vegetation interesting to entomologists ; the Black Forest, 

 on the other hand, is composed almost entirely of beech trees and 

 gloomy pines, which have little attraction for butterflies. 



The more interesting species occurred as follows:— Erynnis alcaeae: 

 I took a single fresh $ on May 4th in a clearing in the Black Forest ; 

 I was unable to visit the spot again. Hesperia malvae : This species 

 occurred occasionally in the Forest, and from May 10th onwards was 

 very plentiful in the plain. Powellia sao appeared to be scarce, as I 

 took only one worn $ ; this was on June 7th, on the outskirts of the 

 Forest. Cyclopides palaemon appeared on May 11th, and was locally 

 plentiful in the woods of the plain ; I also found it occasionally else- 

 where up to the edge of the Forest. Loweia dorilis was common 

 everywhere in the plain from the middle of May, the ? s being 

 particularly fine and bright. Cupido mini ma and Nomiades semiargus 

 were both locally plentiful on small limestone hills at the edge of the 

 plain, and also occurred occasionally elsewhere. They appeared at the 

 end of May. Nomiades cyllarus was rare, and my only capture was a 

 single large, but rather worn, 2 on May 26th, on the limestone hills 

 mentioned above. Polyommatus bellargus I took occasionally during June 

 at the edge of the plain. Plebeius argus (aegon) was very plentiful in the 

 plain, especially so on the banks of the Rhine. Plebeius argyrognnmon 

 was sometimes to be found in the plain, but was very much rarer than 

 the preceding species. The two or three J s which I took were of the 

 form brunnea. Everes argiades : My only captures of this species were 

 two fresh $ s on May 11th and May 13th. They were found flying in 

 the grass meadows of the plain, and, in size (24mm.), they come between 

 the var. polysperchon and the type, the sizes of which Mr. Wheeler 

 gives as 20mm. and 29mm. respectively. Callophrys rubi appeared 

 early in May, but was confined entirely to clearings in the Forest and 

 its immediate outskirts. One or two specimens approach very nearly 

 to ab. immaculata. Strymon pruni: On June 6th I took one perfect $ 

 of this species close to the Rhine ; owing to the bad weather I was 



