144 Inheritance and ^volution in Ortlwptera I 



used as breeding cages. Soon after the young hatch, they are trans- 

 ferred by means of a damp camel hair brush to the larger cages covered 

 with the 24-mesh wire. The best food found consists of the green 

 scrapings (algae, lichens, etc.) from the long used pots holding hot- 

 house plants, though the various filamentous algae serve very well. 

 The mortality on the whole is great. 



Fig. 1. 



III. Analyses of gametic constitutions and the 



INHERITANCE OF COLOUR PATTERNS. 



(1) An analysis and the inheritance of the colour patterns of forms 

 of the appearance of texaiius, leuconotus, leucothoi'ax, and puncto- 

 femorata. 



For convenience, the homozygous form.s an<l their gametes will be 

 designated by symbols (letters): texanus by .1, louconotus by B, leuco- 

 thorax by C, punctofemorata by D, luteolineatus by E, rufrolineatus 

 by F, melanothorax by G, luteonotatus by H, and nigronotatus by /, 



