Insecta. 19 



THE BUTTERFLY. 



The large brown monarch butterfly, or " milkweed butterfly," 

 with dark markings along the veins of the wings, is a good one 

 to study. 



1. Notice the position of the eyes, and their relative size. 



2. Where are the antennae attached? Compare with those of 

 the grasshopper. 



3. The short projections in front of the head are the labial palps. 



4. Between the palps is the coiled sucking tube ; uncoil, and 

 examine it. 



5. The wings : 



(a) Their shape and their mode of overlapping. 



(b} The dark, shiny veins ; where are they strongest ? 



(^ Scrape some of the scales off a wing ; examine under a 

 high power of the microscope, making drawings. 



(//) Examine with a low power of the microscope a piece 

 of a wing, with the scales on it, to see how they are attached and 

 arranged. Look at a part of the wing where the scales have been 

 removed. 



6. Spread the wings of a butterfly, and draw them as seen 

 from above. 



7. Examine the legs, and compare their use in this insect and 

 others. 



8. Make a drawing of the butterfly as seen when at rest, nam- 

 ing all the parts visible. 



9. Compare the colors and markings of the upper and lower 

 surfaces of the wings. 



10. Carefully compare a moth and a butterfly. 



11. Butterflies and moths belong to the order Lepidoptera, or 

 scaly-winged insects. 



The orders of insects are divided into families ; this butterfly 

 belongs to the family Nymphalidas. 



Families are divided into genera ; this butterfly belongs to the 

 genus Anosia. 



