COLOR PATTERN OF PRONOTUM. 



67 



Table 10. Direction and frequency of fusion of the spots on the pronotum in L. decem- 

 lincata (United States and Canada), 6^00 individuals. 



Order of 

 frequency of 

 occurrence. 



Formulae showing color pattern. 



Individuals 



showing 



fusion. 



pm, -\- am 



pm -\- , am 

 a' 



pm -f- am 

 a' 



a + b 

 pm -\- a vi 

 a' + b' 



a + e 

 d' + e' 



e+f 



e> +/' 



a+b+c+e+f 



pm + ai/i 



a' + b' + d' + e' +f 



1 + ' <c 



a + b + d + e + [ c f 



pm + am 



a' + b'+C + e' + K 



Per cent. 

 9 



11 



27 

 22 



16 

 26 



In the fusions of 

 the spots indicated 

 in 8, a and d are 

 united by a lateral- 

 ward extension of a 

 and a niedianward 

 extension of d, 

 which is indicated 

 intheformulabythe 

 sign 1 1 ,. 



0.5 



Table ii. Direction and frequency of the fusion of the spots on the pronotum in 

 L. juncta (United States), 200 individuals. 



