Hummingbirds «t 



WING LENGTH and WING AREA 

 INSECTS 



wing length Is msasurtd from wing tip to stioulder 

 Wing orao is for aH wings- 



Rhopolocora 

 O TD Heteroeara 

 g Bombycidae 



I Drosophlla \ 



General equation for all lines 

 (lengtti)* * c(area) 



Line c 



1 3.39 



2 272 



3 1.68 



4 1.15 



5 0.66 



Narrow wings produce a high value for c 

 wide wings a low value 



Wing Area - sq. millimeters 



10 



100 



Fig. 6 



1000 



