64 STUDIES OF ANIMAL LIFE. 



c. Is a pupa as lively as a larva ? 



2. Under 1. or l.p. (Use mounted preparation.) 



a. Can you distinguish head, thorax and abdo- 

 men? 



h. Notice the two horn-shaped breathing tubes. 



c. Is the larval respiratory tube still present ? 



What is the reason for the extraordinary change 

 in the position of the pupa in water from that 

 of the larva ? 



3. Draw a pupa. 



D. Imago. The fourth stage. (Use preserved speci- 

 mens.) 



1. Can a mosquito bite ? (Look for jaws.) 



2. Can a mosquito sting ? (Look for a stinger.) 



3. What does a mosquito do when we say it " bites '' or 



"stings"? 

 What is the natural food of mosquitoes ? 



4. How many wings does a mosquito have ? 



5. How are the wings ornamented ? 



6. Is your specimen a male or a female ? (The male 



has large bushy antennse. ) 

 How does a mosquito " sing " ? 

 Where are mosquitoes most abundant ? Why ? 

 How may they be kept in check ? 

 What is the probable relation between mosquitoes 



and malaria ? 



8. AN EXERCISE IN IDENTIFICATION AND 

 CLASSIFICATION. 



Use the table on page 65 for finding out to which order 

 each insect belongs. 



