164 Inheritance and Evolntion in Orthojytera I 



hatched in August which matured from December to February and 

 gave: 



Long Winged 15 : Intermediate Winged 2 : Short Winged 41 (i^,). 

 Now going b«k to the long winged of generation F<^, long winged, 

 their inbreeding gave progeny in July which matured from September 

 to February : 



Long Winged 212 : Intermediate Winged 2 : Short Winged 25 {F^\ 



The long winged in this instance were nearly all matured by the end 

 of September, while the intermediate and short winged required until 

 February to mature. The short winged ones just enumerated as 

 maturing in February, produced young in March, which matured in 

 June: 



Long Winged 9 {F,). 



The inbreeding fron^ the long winged of F^ generation progeny 

 produced young in October which matured the following March and 

 April : 



Long Winged 58 : Intermediate Winged 3 : Short Winged 68 (^^4). 

 These short winged gave young in April which matured in July : 



Long Winged 65 {F^). 

 Their long winged brothers and sisters, generation ^4, also produced 

 young in April which matured in July : 



Long Winged 33 (Fr). 



V. An examination of the location, arrangement, and rela- 

 tions OF THE PIGMENTAL ELEMENTS IN THE COLOUR PATTERNS 

 OF THE EXTRACTED SPECIES AND THEIR HYBRIDS. 



All the hybrids thus far produced, except some of those in which 

 texanus {A) is a component, exhibit, on supei-ficial examination as 

 shown in the photographs, the colour character, or part of it, of each 

 of the components. In some cases, as leuconotus-leucothorax {BC), 

 leuconotus-melanothorax {BG), and leucothorax-melanothorax {CG), on 

 superficial examination the elements of the parents appear to be present 

 in apparently equal proportions, while in others, as leuconotus nigi'o- 

 notatus {BI\ leuconotus-luteonotatus (BH), leucothorax-nigronotatus 

 (CI), leucothorax-luteonotatus (CH), leuconotus-rufrolineatus (BF), 

 leuconotus-luteolineatus (BE), leucothorax-rufrolineatus (CF), and 



