No. 401.] THE FRUITING OF THE BLUE FLAG. 369 
‘falls’ [sepals] and the style divisions." ! He mentions Chryso- 
phanes thoe Boisd. and Lec. and Pamphila peckius Kirb. 
I have mentioned above that the flower beetle, Zrichius 
piger, and the flag weevil, Mononychus vulpeculus, are deceived 
as to the proper entrance in a quite similar manner, with the 
difference that when these stumble upon the true entrance 
they can enter there. I have never seen any one of these ill- 
adapted visitors alight directly at the proper entrance; all fol- 
Fic. 3. — Top view of the flower; false guide streaks. 
low to the center the lines simulating the guide streaks of. an 
ordinary open flower. But the Iris flower was not evolved by 
these insects, nor with them. Proper visitors know where the 
entrance is and make no mistakes. And if the bees afore- 
named pass from nectary to nectary with a speed that the eye 
can hardly follow, must we conclude that they are not guided - 
by the coloration of the flowers? Must we say the striking - 
lines of violet and yellow at the entrance aid them not, be- 
cause they give no sign? I think not. I may enter a barber 
Shop guided entirely by a striped pole and yet give no sign. I 
1 Robertson, Charles. Junius Gazette, vol. xxi, p. 80; "- 
