PECULIAR MOTIONS OF INSECTS. 



591 



Feet of the blue-bottle fly, magnified 6400 times. A, a view of the un- 

 der side of the last joint of the toe, with the two suckers expanded, as 

 seen when the fly is walking against gravity. B, side of ditto. 



Feet of the bibio ftbrilis, (Latr., i magnified 6 100 times. A, tlic uudc!- 

 side of the last joint of the too, with the f Aire suckers exiiaiided. U, 

 side view^ of ditto. 



