92 



dwarf bushes in company with Pohjoinmatns ei^cheri. When I was 

 at Spalato in the early days of June, 1912, they were in a very nice 

 condition, and had evidently recently emerged. 



"I also got some nice dark forms of Melancuy/ia f/alatea, and I have 

 brought some specimens for exhibition. The series is headed by a 

 couple of British M.^alatea, which are so familiar to all of us. Our 

 form is small and lightly marked compared with those from the 

 South of Europe. In England M. (jalatea reaches the northern 

 limit of its range in western Europe, and the northern and central 

 continental forms are practically the same as ours, as will be noticed 

 in the short series I show from the Vosges, while, as many of you 

 know, the specimen from J'iClepens and other Swiss localities 

 resemble them very closely. But when we get south of the Alps 

 the insect puts on a different appearance, and we get the more 

 melanic form which is known as var, procida. The specimens I 

 show from the neighbourhood of Turin exhibit very distinctly this 

 increase in the black markings and the reduction of the white. It 

 will be noticed that the white spots in the black marginal band of 

 the hindwing show a tendency to disappear. The next series is 

 from the Aurunci Mountains in south-central Italy, audit is curious 

 to note that, contrary to the general tendency, the more southern 

 Italian specimens are less heavily marked with black than those 

 from Piedmont. The next row consists of Balkan specimens taken 

 last summer, and here we have a fine dark form of M.nalatca. The 

 blackest specimens from this district are called var. turcica, Boisd., 

 but it seems difficult to tell where var. procida leaves off and where 

 var. turcica begins, and I do not think a hard and fast line can be 

 drawn between them, and, indeed, we can get a fairly complete 

 gradation between the small and light northern forms, and the 

 larger and darker southern ones. You will notice the extremely 

 melanic specimen at the bottom of the row. 



" I took some of the largest specimens I have yet met with of 

 Satyrus seniele on tJae arid mountain slopes of Montenegro and the 

 Hercegovina. Some of the females have an expanse of 61mm.. and 

 are fine brightly-coloured specimens with well-marked undersides, 

 the white central band of the hindwing contrasting vividly with the 

 darker basal and distal areas. I haveput in three British specimens 

 for comparison. Of Satyrus henirionc I need say very little, except 

 to remind you of its habit of settling on the tree trunks. I came 

 upon a colony of them at Jablanica in the Hercegovina. I was 

 exploring a rocky and desolate valley, following a narrow track high 

 up on the outside of it. It was quite devoid of shade, but right up 



