Vol. xxix] 



ENTOMOLOGICAL \F.\YS. 



95 



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n, fatigued in 12 min. 



12, fatigued in 16 min. 



13, fatigued in 18 min. 



14, fatigued in 16 min. 



16, fatigued in 12 min. 



17, fatigued in 17 min. 



18, fatigued in 14 min. 



19, fatigued in 12 min. 



20, fatigued in 16 min. 



21, fatigued in 16 min. 



22, fatigued in 14 min. 



23, fatigued in 9 min. ; 



25, fatigued in 5 min. ; 



26, fatigued in 6 min. ; 



28, fatigued in 4 min. ; 



29, neither would fly. 



Pair No. 3. 

 ; lively. 

 ; ate heartily. 



; female excitable. 

 ; female deposited three eyi;s, live 

 ; female seemed normal. 

 : both ate well. 



; restless. 



; neither would eat. 

 ; male stupid. 



; male flew about four min. 

 male flew one min. 

 male would not fly. 

 male more lively. 

 male would not fly. 



12, 

 13, 

 14, 

 16. 



17, 

 18, 



19- 



20, 

 21, 

 22, 

 23, 

 25- 

 26, 

 28. 



29, 



30, 



2, 



II, 



12, 

 13, 

 14, 



16, 



fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 male died, 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 refused to 



fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 

 fatigued in 



Pair No. 4. 

 14 min. 

 12 min. 



14 min. ; lively. 

 16 min. ; both ate. 

 18 min. ; both lively. 



12 min. ; another male. 

 14 min. ; active. 



18 min. ; both took food. 



16 min. ; rather nervous. 



19 min. 



17 min. ; male died two hours after test. 



20 min. ; female alone. 



12 min. ; female alone, stupid. 



8 min. ; female alone, more lively. 



female alone, stupid. 



female alone. 



10 mn. 

 12 min. 

 fly. 



Pair No. 5. 



15 min. 



16 min. ; ate heartily. 

 14 min. 



18 min. ; lively. 



19 min. ; very lively. 

 18 min. ; ate heartily. 



