152 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 1. NO. 3. 
the anthers, as the visiting bumble-bee is likely to strike the 
stigma before the anthers. I have seen the following insects on 
the flowers: 
A. Bees. 
Apiclae: (i) Bouihiis aincricanonim, F. ? , s. ; (2) B. con- 
similis, Cr. 9, s. and cp. ; (3) Osmia alhivcntris, Cr. 9^ s. and 
cp. ; (4) 0. distincta, Cr. ? , s. ; (5) 0. atrivcntris, Cr. 9, r.; 
(6) O. simiUiina, Siii.- s. ; Andrenidae : (7) Halictiis coria- 
ceits, Sin. ?, cp. ; (8) H. fulvipcs, Siii. ?, cp. ; (9) H. siiuilis, 
Sfii. 9 J s. 
Birds. 
(10) TrocJiilus coluhris, L. 
The most frequent visitor seen on the flowers was one of our 
bumble-bees; Boinbus consimilis. The visits of the smaller 
bees (Osmia and Halictus) are of little importance to the flowers, 
as they may obtain honey and pollen, without touching the stigma. 
On one occasion a small bee: Halictus fiilvipcs was observed 
collecting pollen by first alighting on the corolla, climbing up a 
fidament to the anther, descending with a load of pollen, climb- 
ing up a neighboring filament, and so on. In mistaking the 
style for a filament, it climbed up to the stigma, crawled over the 
latter before discovering its mistake and undoubtedly deposited 
grains of pollen on the stigina. As it repeated this procedure 
on several flowers, always making the mistake with the style, it 
may in this peculiar way have caused either self- or cross-fer- 
tilization. 
This honeysuckle is also visited by the hummingbird. 
Lomcera oblongfifolia, MuhL Swamp FIy-HoneysuckIe» 
(Fig. 6.) 
This is the rarest of the honeysuckles in our locality, a few 
full grown specimens still lingering in damp soil in the IMenom- 
onee Valley, at the foot of the bluffs, west of Wells Street Via- 
duct. The blooming season is short, from !May 30 to June 10. 
The erect flowers are situated in pairs on long, slender peduncles. 
They are yellowish-white, more greenish towards the base, but a 
change of color to light purplish takes place in the older flow- 
ers, mostly on the third day. The corolla has a length of 12 mm., 
but it is deeply cleft between the two lips, leaving only 4 mm. 
for the length of the tube. As the two flowers of a pair stand 
close together, their entirely erect upper lips nearly come in con- 
tact with each other ; the slender lower lip is recurved to one side 
