94 Bulletin Wisconsin Natural History society. [Vol. 8, No. 2. 



Eupatorium urticw folium. White. 

 Solidayo canadensis. Yellow. 

 Solidago gra-minifolia. Yellow. 

 Rudbeclcia Mrta. Yellow. 

 Helianthus strumosus. Yellow. 

 Helianthus giganteus. Yellow. 

 Helenium autumnale. Yellow. 

 Grindelia squarrosa. Yellow. 

 Biilcns hrris. Yellow. 

 Alltogether for the 13 flowers: 



White and yellow 76.9%. 

 Purple and blue 23.1%. 



7. Exoprosopa decora Loew. 



Flowers visited : Aster puniceus. Blue. 



Aster iionc-iniijliir. Purple. 

 Solidago juncea. Yellow. 

 Heliopsis scabra. Yellow. 

 Rudbeclcia laciniata. Yellow. 

 Helianthus strumosus. Yellow. 

 Verbena hastata. Blue. 

 Alltogether for the 7 flowers: 



Yellow .".7.1%. 



Purple and blue 42.9%. 



8. Exoprosopa fascipennis Say. 



Flowers visited : Aster furcatus. White. 



Eupatorium perfoliatum. White. 



Eupatorium purpureum. Purple. 



Rudbeclcia laciniata. Yellow. 



Helianthus strumosus. Yellow. 

 Alltogether for the 5 flowers : 



White and yellow SO.0%. 



Purple 20.0%. 



9. Exoprosopa fasciata Maeq. 



Flowers visited : Eupatorium perfoliatum. White. 

 Eupatorium purpureum. Purple. 

 TAatris spicata. Reddish. 

 Verbena hastata. Blue. 



