314 



The Mechanism of Evolution in Leptinotaesa 



'jJA» ,^i 196 



T», ^v> .j^ 214 



--319 

 —111 



87- 

 ■96- 



■'ti,-^ «V» ^v^- 



/ 

 / 



38 



57 29 

 1034 Males. 



77 92 104 



— 81 

 "519. 



— 2U 



Total 2304. 1270 Females. 



Fio. 124. — First census at San Marcos In 1904, showing condition in the pro- 

 notal pattern. 



11— 

 51— 



V 



..^ V^ tV=» jV 



M$ 86 



; 214 



• ^ 479 



79. =55^>i-;. 



/ / / 



25 11 81 



^* 



\ \~Q^^— -241. 

 \ \'^'— 38 

 \ \ " 

 56 92 





/ \ \ ^ 



24 31 85 



1385 Males. Total 2466. 1081 Females. 

 Fig. 125. — Second census at San Marcos in 1904. 



• — 4S 

 — 541 

 — -219 

 — -56 



^"" 



"\^\ 



21" 



86 -^«Sl^\ 



441 ?^ 



•5.?. 



^5--^^ _ ^ 'i.f. .■'19 



m^^.'^ *>?' .V2^> -415 



/ / ,\> ^^-^ i,&(JK 109 



/ / / ^jsr\ \ r^ 



/ 



'47 21 4) 9 24 51 97 



1559 Males. Total 3032. 1473 Females. 



Fio. 126. — First census at San Marcos in 1905, showini? increased array of 

 pattern conditions and existence of an isolated group in biotype 12. 



3^ -mi-^ 



56 -m:\ 



p3 ■"^>^*jv, 



^"— :;:-;-' *^' i>-"V -sss 



/ / .' fci'ga'-i^f,..^^. 4J3 



-146 



■' / /^. \ Is 



// 



4 51 65 



/ m^ 



C'^J 



12 22 131 



2105 Males. 



77 



92 



106 



99 





^^'W^^ 



/ 



14 



II 



-219 



12 17 



Total 3716. 1611 Females. 



W 



58 92 



Fig. 127. — Second census at San Marcos in 1905, showing condition in the popu- 

 lation as a whole and the existence of two isolated groups in both sexes. 



