lJULLKTI.V OF WISCONSIN NATI KAL HISTORY SOCIETY. VOL. 2. NO. 1. 
of liuoiiyinus atropiirpiircus with a disagreeable 1jut not putrid 
odor are attractive to flies in general. 
3. The specialized flies of the family Syrphidac avoid the 
putrid-scented flowers of Smilax ccirrhata and SinilaA' herhacea, 
but they frequent the flowers of Euonymns atropnrpurcus. 
4. The disagreeable odor of the flowers of the two saproinyi- 
ophilous Sniilax-species, as well as of Enonyinus atropurpiireiis 
does not prevent the lower bees of the family Andrenidae from 
visiting these flowers. 
