178 NATURE-STUDY 



scorpion, water-boatmen, back swimmers, dragonfly larvae, 

 etc. The black, shining whirligig-beetles spin about like 

 beads upon the water, and running dry-shod over the sur- 

 face are the water-striders and some spiders. All these 

 pond insects may be kept in aquaria. 



In the forest we shall find leaf-eating caterpillars and their 

 moths. Perhaps we shall be fortunate enough to find the 

 beautiful cecropia and the luna moths. We shall find inter- 



FIG. 38. A Likely Place for Dragonfly Larvae, Water-Scorpions, Electric- 

 Light Bugs, Crayfish, Frog's Eggs, etc. Muskrat House at End of 

 Pond. 



esting homes of insects, such as rolled-up leaves, wart-galls 

 on the leaves, willow cones, oak galls, etc. Decaying stumps 

 and logs are regular hotels for such insects as ants, roaches, 

 crickets, and beetles, also spiders, centipedes, millipedes, 

 sow-bugs, etc. We may also find the interesting measuring 

 caterpillars, and the remarkable walking-sticks. 



Nocturnal insects may be found flitting about at dusk, 

 such as the humming-bird moths and other moths; or they 

 may be seen around the street lamps in swarms. By ex- 

 amining the ground beneath a street lamp we shall find 



