Analysis of Hetekogeneity in the Population 



321 



7 4 3 



17—- ^'XW 

 25- ^ \\^ 



28 -^ \^ 



44 ® '^ 



39 -® 



(^-—9 



^ 25 



^ 86 



^r 111 



(^>- 92 



42 (^ (^»- 



^ 



^ 



171 



214 



119 



42 



^11 



4 



^ 1 



1203 Males. Total 2327. 



7 



26— 

 51--- 



42— 



31 J^ 



20 -& 



34 



14 

 / 

 / 

 / 

 / 



/ 



/ ^-—2 



' ^ 7 



^ 34 



^ Igl 



^ 217 



318 



^. 141 



®- 12 



m 7 



1124 Females. 



Fig. 144. — Second annual generation at Chicago in 1906, showing the pronotal 

 pattern as far as observed. 



12 11 



14— <^ \\^^ 



\; 



m> 



21— 



56 f^} ^ ^^— 86 



33 (^ ^ 92 



11 '^^ 6^ 171 



(^>- 314 



^. 211 



^ 86 



1271 Males. 



6--® 



12 !^ 



41 — 

 18 — 



4 ^ 

 1746 



ma 



m>i ^— . 92 



(^' ^ 141 



fig) 174 



218 



326 



211 



:MaS 44 





Total 2568. 1297 Females. 

 -First annual generation at Chicago In 1907, showing the pronotal 



Fig. 145.- 

 pattern. 



11 7 



8--^\\ 

 5—'^ \\ 



9 (^ v^(i^ 



•27 ^B> '^ 



41 @ 



8 ^ <^\ 



(^ 



^S^ 



®— - 



(llH^— 17 



$m5> 



<^^ 



wi^ 



41 

 ■'66 

 -21 

 -55 



■141 

 ■176 

 -144 

 -107 



193 



^ 86 





112 4 



> I I / 



® / / 



y 



^—8 

 €^—'56 



^ ^ 44 



^1. 92 



I ^ .-191 



(^L 317 



^. 45 



^L 81 



(^ 22 



^ 26 



'^—74 

 1163 Males. Total 2265. 1102 Females. 



Fig. 146. — Second annual generation at Chicago in 1907, showing the pronotal 

 pattera. 

 22 



