Asteiias Bntterjly. — Develops from chrysa- 

 lis and appears on the wing. 



Cabbage Biitterjiies. — Emerge from chrysalids 

 and fly over meadows and gardens. 



Viceroy, or Disippiis Bntterjly. — Larva; 

 emerge from winter cases and feed on leaves 

 of poplar and willow. 



Sphinx Moths. — A few early moths may ap- 

 pear, but most remain in soil as pupee. 



Cecropia and Promethea Moths. — Still in co- 

 coons. 



Polyphemus and Luna Moths. — Remain in 

 cocoons. 



Tiger Moths. — Larvae of some species spin 

 cocoons and change to pupae. The common- 

 est caterpillar that does this is that of the Isa- 

 bella tiger moth. 



White-marked Ttissock Moth. — Still in egg- 

 masses on elm and other trees. 



Ciit'vorm Moths. — Larvae (cutworms) begin 

 feeding on grasses and vegetables at night •, 

 seek shelter of soil or boards during day. 



Noctuid Moths. — Many species flying at 

 night, visiting willows and attracted to lights. 



Fall Cankei-ivorm. — Eggs hatch into larvae 

 that feed on opening leaves of apple and elm. 



Biidworms. — Larvae begin feeding on open- 

 ing buds of apple. 



Leaf -miners. — Larvae of many species change 

 to pupae. 



Caddis-flies. — Larvae in cases become active, 

 feeding in the water of ponds and streams. 



Squash-bugs and similar species. — Adults 

 come from shelter and begin seeking food. 



Water-hugs. — Resume activity in ponds and. 

 streams. 



NATURE'S CALENDAR 83 



April 29 



