— 7T — 



The european species, where only imagines were described 

 are : 



1. Liponeura decipiens JBezZI (?). 



2. Liponeura (Philorus) bilobata Lw. 



3. Liponeura Komare^i WlMMER (?). 



4. Liponeura cordala WlMMER (?). 



5. Apistomyia elegans BlGOT. 



According to the mentioned geographical distribution we see 

 two interesting things. 



Firstly that the genus Liponeura is a truly high mountain 

 inhabitant, whereas Blepharocera lives only at the foot of mcun- 

 tains and alvays in warmer places. We never find it in the 

 neighbourhood of glaciers as the Liponeura. 



On account of that Blepharocera has a much wider distribu- 

 tion than the species of the genus Liponeura. 



For that reascn also the latter genus pcssesses so many diffé- 

 rent species because off it? life in isolated mcuntains and their 

 valleys has caused also a différent development in the same 

 manner as WALLACE has described in his « Island's life ». 



We hâve for instance in the whole of Europe only two species 

 of Blepharocera, whereas we hâve already circa 10 species of 

 the Lïponeura-genus, but this number will in the future be 

 greatly increased as one can see for inst. in Caucasian, where 

 nearly every valley has its spécifie species. It is caused by « the 

 local isolation, » and it seems be very extraordinary that we 

 meet with such things among the flying insects. 



