258 Willis and Bur kill. — Flowers and 
(19) Hydrellia griseola Fin. Phytomyzidcie : (20) Phytomyza sp. ? 
Phoridae'. (21) Phora sp. ? Coleoptera : (22) Meligethes picipes 
Scurm, s. h. Hemiptera : (23) one sp.,? probing nectary. 
Summing up as before we have : — 
TABLE III. 
Class. 
i No. of Flowers. 
Lepidoptera. 
Long-tongued 
Bees. 
Short-tongued 
Bees. 
Other Hymen- 
optera. 
Long-tongued 
Flies. 
'■d 
<D 
3 
tsJO 
G 
O ^ 
J, _<u 
oE 
-G ” 
tn 
31 
21 
25 
Coleoptera. 
Other Insects. 
Total. 
A 
B 
B' 
2 
I 
3 
5 
4 
I 
3 
5 
1 1 ! 
34 
12 
4 
T 5 
13 
21 
5 
4 
8 
2 
I 
87 
60 
68 
Total 
6 
9 
9 
— 
50 
49 
77 
J 7 
4 
215 
Low Ger. 
6 
22 
12 
25 
25 + 
62 
21 
20 
4 
191 + 
The percentage method cannot be employed here, as the 
figures are too small, and the observations do not cover the 
whole flora of the district (though they do cover most of the 
conspicuous part of the flora of the cliffs). In the bottom 
line of the table are given the totals of visitors to the same 
plants observed in Low Germany by Muller, and it is at 
once seen that, as at Auchencairn, the proportion of short- 
tongued flies is much larger at Scarborough, whilst that of 
the bees is smaller. The figures agree pretty well with those 
obtained from Scotland, except for Lepidoptera, which form 
here only 4*3 per cent, of the total, and thus fall below the 
proportion for Germany. The same result appears if we 
compare the lists of visitors to Mentha and Scabiosa , ex- 
amined both at Auchencairn and Scarborough. 
An attempt was made to determine, for each flower, during 
one month (see dates above), the proportionate number of 
