160 DISCOGLOSSIDil!!. 



Brittany, in the plains as well as in the hills, but 

 very local in many parts, and does not ascend the 

 Pyrenees ; South-eastern Holland ; Belgium soutli of 

 the Sambi^e and the Meuse, and in the calcareous 

 localities near Tournay ; Germany all along the Rhine, 

 but not higher up than 2000 feet in Baden ; South 

 Germany, Switzerland, in the valleys as well as on 

 the mountains up to 3900 feet. East of the Weser in 

 Germany this species enters into competition with 

 B. igvens, and, as first pointed out by Wolterstorff, 

 becomes restricted to the hills ; this being the case 

 wherever the two species co-exist, as in Austria- 

 Hungary and Moldavia. Its highest recorded oc- 

 currence in Transylvania is at 3900 feet, as in 

 Switzerland, whilst in the Tyrol it reaches to 4850 

 feet, and in Bosnia to 5500 feet. In Italy the 

 species is found in Lombardy and Venetia,* in the 

 Apuan Alps up to 4500 feet, and along the chain of 

 the Apennines from Emilia to Calabria, between GOO 

 and 3600 feet, as I am informed by Prof. Giglioli. It 

 is on record from the Etna, but not from other parts of 

 Sicily. East of the Adriatic it occurs in Dalmatia, 

 Bosnia, Herzegovina, Montenegro, Turkey (Adria- 

 nople), and Greece (Parnassos, 3000 feet). 



Mehely has recently expressed the opinion that 

 B. facliypxis is to be regarded as a typical hill or 

 mountain form, which only descends to the plain in 

 the cooler northern regions, like Bona temporaria. 

 This is certainly not the case. In the south-west of 

 France the species is quite abundant at sea level ; I 

 have myself collected it on the banks of the Garonne, 

 in the immediate vicinity of Bordeaux, where it is 

 plentiful in small ditches bordering the vineyards ; 

 and E. de Betta found it numerous in the plains 

 of Venetia. 



* The species is absent from Piedmont. Soiiie hundred specimens 

 from Venetia were turned loose in the neighbourhood of Turin by 

 Count Peraccii about ten years ago. 



