HOW TO KNOW THE BUTTERFLIES 



found in certain limited spots or in folds of the 

 wings." (Kellogg.) 



The most familiar illustrations of the group- 

 ing of the androconia in distinct patches are in 

 the "brands" of the males of certain skippers, 

 and in the discal patch of the fore wings of hair- 

 streaks. It is among the skippers also that we 

 find the most striking examples of folds formed 

 for containing androconia, i. e., in the skippers 

 with a costal fold. In the milkweed butterflies 

 the androconia are in a little pocket close to vein 

 Cu 2 of the hind wings (see Plate xxxii.) 



In caterpillars the fine hairs scattered over the 

 surface of the body are sense-organs and are prob- 

 ably tactile ; and it is believed that the organs of 

 taste and of smell of insects are modified hairs. 

 We thus see that the clothing of these insects 

 serves many and widely different uses. 



IV. THE METAMORPHOSES OF BUTTERFLIES 



A butterfly in the course of its existence ap- 

 pears under four distinct forms ; these are the eesr 

 the larva or caterpillar, the pupa or chrysalis, and 

 the adult. 



The eggs are small, and consequently are 

 rarely seen except by those who observe very 

 closely. They are attached by the parent butter- 



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