56 



Melanism in Tephrosia consonaria 



were so, the original captured ? must have paired with a wild 

 melanic j/*. 



Fig. 1 gives a schematic representation of the history of the strain, 

 showing how the 1918 families were descended from the original stock. 

 Each family is labelled with a distinctive letter, and the year in which 

 the ova were laid. 



GENEALOGICAL TABLE 



of T. consonaria and var. nigra. 



(Wateringbury) 

 Var. nigra f 



Wild type* 



'15A 



Wild type* (J 



I 



i_ 



1 

 ? 



(Wateringbury) 



i 



J 



Wild tyiie* 



"1 



'15 5 



J L 



'15 C 



1 



1913 



1914 



1915 



o=Type, 



'18 A, J5, etc. 

 • = Var. nigra. 



1916 



1917 

 1918 



Fig. 1. Schematic representation of the relationship of the 1918 families of 

 2\ consonaria and var. nigra to the original stock. 



* Captured in the same oak wood at Wateringbury. 



In 1918 a sufficient number of insects were obtained to make all 

 the necessary pairings. The larvae are very hardy and remained almost 

 free from dysentery and other diseases. The species seems to withstand 

 a certain amount of inbreeding without showing any ill effects. The 



