AGRIADES CORIDON. 99 



portion of the Trafoithal ; here, on the alpine pastures, on a level 

 with the glaciers of the mighty Ortler, are stretches of wild flowers at 

 an elevation of 7500ft. to 9000ft., and, on these slopes, with Erebia 

 glacialis, E. gorge, and other of the highest alpine species, Agriades 

 coridon holds court, not in the same abundance above Franzenshohe 

 as below it, but still going up as far as its foodplant reaches. It 

 occurs equally abundantly in all the alpine meadows in the Dolomites 

 between Cortina di Ampezzo and the summit of the Falzarego Pass, 

 as well as between Cortina and the Misurina Lake and Schluderbach, 

 on the slopes of Monte Cristallo, the Sorapiss, the Croda da Lago, etc. 

 In Bohemia it is reported as occurring in flowery meadows (Nickerl); 

 in the meadows on the southern slopes of the Nockstein at Salzburg, 

 as well as on the plain (Fritsch); in Upper Austria,, in mountain 

 meadows reaching into the high alps (Brittinger); in Lower Austria, 

 also in the mountains and plains, occurring almost everywhere (Rossi); 

 in Salzburg, on warm dry slopes on chalk, up to the tree limit, in 

 some places in great abundance (Richter). It is noted as being very 

 local in Carinthia (Hofner), and in Carniola is said to occur pretty 

 commonly on dry sandy slopes (Hafner). In Bosnia, it occurs between 

 Focha and Celebic, where forests alternate with mountain meadows 

 brilliant with flowers, and where it is found in company with Lycaena 

 areas, L. avion, Polyommatus meleagev, Agriades thetis (bellargus), 

 Chvysophanus hippotho'e, Heodes virgauveae, etc. ; it also occurs between 

 Serajevo and Gorazda, with swarms of Dryas paphia, Argynnis adippe, 

 Apatuva iris, A. ilia, and many other interesting species ; whilst Aigner- 

 Abafi says (in litt.) that, in Hungary, it is plentiful on the mountains 

 and the meadows of the plains. In Roumania it is both local and 

 rare, and only occurs on the Muschelkalk hills on the Bucovina frontier. 

 In Germany the species has similar habitats to those of A. thetis; it is 

 decidedly a chalk-loving insect, and is to be found on the dry sunny 

 slopes of the chalk-hills, in some places in very great abundance ; in 

 the Alps it extends up to the tree limit (Speyer). It is reported as 

 occurring everywhere in Westphalia on chalky soil, wherever its food- 

 plants grow, and is common on sunny mountain sides and stony slopes, 

 but prefers fields of Onobrychis sativa (Uffeln). In the Rhine 

 Provinces it occurs also on chalk, on the Budberg and Mundelheim 

 embankments and the adjacent meadows (Rothke); in Hesse, it is 

 local, though abundant on the marsh near Mombach (Koch), and in 

 the Mombach Forest (Glaser); it occurs on the chalk outcrops in the 

 tertiary basin of Mainz, and, whilst abundant at Biebrich, is almost 

 wanting in the Taunus (Rossler); in Thuringia it occurs both on sandy 

 and chalk soils in the plain, and is common in the foothills of the 

 higher regions (Krieghoff); in the Province of Saxony it is common 

 on the chalk hills at Gera, as well as in the Stiegerwald and Willroda 

 forest in open grassy places, whilst near Zeitz it particularly affects 

 flowery slopes and fields of Onobrychis sativa (Wilde); in Anhalt, it is 

 chiefly found in meadows (Amelang); in Waldeck it haunts the same 

 habitats as A. thetis, chiefly on chalk soil, and is in some years exceed- 

 ingly abundant (Speyer); in Brandenburg also it affects the chalk- 

 hills (Bartel and Herz); whilst, in Silesia, dry meadows, forests, and 

 the outskirts of forests, are noted as its haunts (Doring); it is recorded 

 as occurring on sandy soil in the plains, and on chalk in the foothills 

 of the mountains (Wocke); in the Kingdom of Saxony it is locally 



