106 MISSOURI BOTANICAL GARDEN. 
in front of the tip aud has an outlet from which a soft, 
extensile oviduct can be extruded. This is fine, silk-like, 
pale, membranous and very elastic. It is smooth basally 
but armed along its terminal third with retrorse hairs, iu- 
creasing somewhat in number and strength toward the tip, 
around which they are almost spinous. At first sight these 
would seem to be out of place and to impede rather than. 
aid the insertion of such a delicate filament; but as we 
shall presently see the act of oviposition is a most intricate 
and difficult one and these hairs are doubtless sensitive and: 
tactile and serve the double purpose of enabling the moth 
to feel. her way in the ovarian cell and of temporarily 
anchoring in the soft wall thereof, while the egg is being 
passed to its destination. The manner in which this re- 
markable ovipositor is worked by chitinous rods with 
muscle attachments will be considered in a fuller statement 
of the internal anatomy of the moth in the second part of 
this paper. My purpose here is to call attention simply to 
those features which will more fully explain her visible 
acts, and it will be seen that this ovipositor is admirably 
adapted for cleaving through the young fruit and then 
running the egg into the ovarian cavity, as will be pres- 
ently described. The male has no very marked character- 
istics and is distinguished from allied species chielly by 
the structure of the exposed horny parts of the genitalia 
at the tip of the body. (PI. 37, r. s.). 
THE ACTS OF POLLINATION AND OVIPOSITION. 
Though all the acts of the female are nocturnal, it is not 
at all difficult to follow them with a lantern, for, albeit 
ordinarily shy, she may be closely approached when she 
is about to oviposit. Her activity begins soon after dark, 
but consists, at first, in assiduously collecting a load of 
pollen. She may be seen running up to the top of one of 
the stamens, and bending her head down over the anther, 
stretching the maxillary tentacles, so wonderfully modified 
for the purpose, to their fullest extent, the tongue uncoiled 
