220 



J. W. SCOTT MACFIE. 



Experiment No. VII. 



24th April 1915. Unfertilised female Stegomyia fascmta, hatched to-day from a 

 pupa isolated for the purpose, introduced into a jar under the usual conditions. 



Date. 



Range of 

 temperature. 



Arm offered at 

 1-2 p.m. I 8-9 p.m. 



April 



24 



»> 



25 



fi 



26 



>» 



27 



>> 



28 



>> 



29 



>» 



30 



May 



1 



>> 



2 



>» 



3 



>> 



4 



>5 



5 



>» 



6 



»> 



7 



>J 



8 



«» 



9 



80-85° F. 



80-85 

 80-84 

 79-84 



79-84 



80-85 

 76-84 

 75-82 

 76-83 

 76-83 

 78-82 

 78-80 

 78-82 



77-83 

 78-83 

 78-83 



R. 



Fed. 



— Two males introduced 

 at 12 noon. Pairing 

 took place at once. 



Fed. 



R. 



R. Distended with honey. 



Fed. Eggs were laid between 

 2 & 4 p.m. — Batch I. 



No eggs at 2 p.m. Eggs 

 found at 4 p.m. ; prob- 

 ably jut laid, as they 

 were still white — Batch 

 II. 



Experiment No. VIII. 



30th April 1915. One female Stegomyia fasciata, hatched to-day, isolated under 

 the usual conditions. This female was unfertilised, having never been in the same 

 jar as any male. 



Date. 



Range of 

 temperature. 



Arm oJ 

 1-2 p.m. 



ffiered at 



8-9 p.m. 



April 30 



76-84° F. 



R. 



R. 





May 1 



2 



75-82 

 76-83 



R. 



R. 



Fed. 







3 



76-83 



R. 



R. 







4 



78-82 



R. 



R. 







5 



78-80 



R. 



R. 







6 



78-82 



R. 



Fed. 







7 



77-83 



R. 



R. Distended with 



honey. 





8 



78-83 



R. 



Fed. 







9 



78-83 



R. 



R. 







, 10 



78-83 



R. 



R. 







11 



78-84 



R. 



Fed. 





