Analysis of Hetehogeneity in the Population 



315 



25 



193 

 359 



88 177 

 1839 Males, 



FiQ. 128.- 



^ 21 

 1525 Females. 



46 92 



Total 3364. 

 First census at San Marcos In 1906. 



Total 1566. 



/ / 



33 56 

 839 Females. 



Fig. 129. — Second census at San Marcos In 1906, sbowing condition of pronotal 

 pattern. 



Fig. 130." 

 pattern. 



40 41 

 Total 1559. 707 Females. 



-First census at San Marcos in 1907, showing conditions in pronotal 



Fig. 



22 11 91 



962 Males. Total 2256. 1294 Females. 

 131. — Second census at San Marcos in 1907, siiowing tlie pronotal pattern. 



