15" 



NATURE'S CALENDAR 



June 30 



Plant-lice, or Aphides. — Continue to multi- 

 ply rapidly ; many species migrate from trees 

 to herbaceous plants. 



Common Locusts. — Young develop gradually, 

 feeding upon grasses and clovers. 



Katydids. — Young wandering over various 

 plants, sometimes eating petals of wild rose. 



Tree Crickets. — Young wander over branches, 

 searching for aphides, upon which they feed. 



Black Crickets. — Young become common in 

 shelter of grass and grain. 



Dragoji-Jlies. — Adults of many species on 

 the wing, especially near ponds. 



May-Jiies. — Adults abundant, especially early 

 in the month. 



