62 Inheritance and Evolution in Ortlioptera TTT 



TABLES {continued). 



BI X 77 



532 



Expect. 



r- 

 I 

 Bl 



34 



32-5 



I 



1 

 77 



31 503 475 

 3'J-5 



537 



CO X CC 



I 

 CC 



2l'i 



522 



77.S X 77S 



533 

 534 



Totals 

 Expect. 



us X CIS 



CI CIS IIS ISIS 



28 20 503 522 

 3U 30 



5 6 



4 8 



ISIS X BIS 



L 1. 



BIS ISIS 



535 32 32 510 515 



536 33 21 510 485 



Totals G5 



Expect. 59 



•53 



59 



540 8 



Expect. 7 



BB X 7?7I 



I 

 BB 



539 88 485 



BC A ISIS 



ms CIS 



(1 510 522 



The / part of tlie pattern in tlii.s new combination is considerabl)' 

 modified. In the 7,S', BIS or CIS individuals the normal pigment of 

 the dark inahogan}' spot which is most characteristic of //, and stands 

 out sharply in the hybrids BI, IS and others, seems to be diffused or 

 scattered over the area of the pronotum normally occupied by the spot, 

 and in addition extends over ail the posterior part of the pronatum. 

 This scattering of the pigment, normally concentrated in the spot, gives 

 the whole an appearance of being diluted, or diffused. The SS part of 

 the pattern appears to be normal. The arrangement is indicated on 

 Plate II. 



The significant feature is the complete combination, or linkage, 

 apparently permanent, of the factor for (S' and the ftxctor for the modified 

 / which is sufficiently demonstrated in the accompanying breeding 

 tables. This combination, IS, becomes a new form, a new multiple 

 allelomorph, pairing with, and allelomorphic to, any other multiple 

 allelomorph with which it has been tried, including the forms (multiple 



