1922] ROBERTSON—FLOWERS AND INSECTS 149 
ENTOMOLOGICAL DATA.—TIf lists of visitors of flowers are broken 
up and the visits are redistributed under each insect, the subject 
changes from a botanical to an entomological one. It would 
require as much space and as many entries to make the second set 
of lists. If these insect visits are distributed under the different 
flower classes and colors, they may still hold an indirect relation 
to anthecology. To be correctly arranged as entomological data 
TABLE I 
Other _ | Coleop- 
Data Lists Bees | Diptera bdo Spe ac Total 
tera 
1. First 62 
Entomological. ........... 422 | 82.5 | 4.2 | 6:3 1 +4ar 6 
prabeesogical We ce 475, | 33-3 | 44-8} 4-8-] 10.1.) 9.7 |. 1047 
xt 3 
Entombiogical.....5<05..., 108-1 06.84 X24) 2:49 4819 75 
Anthecological............ 4a 160.01. 0.5} ‘3.61 25.6 12.5 1 1077 
Total 100 
Pntomological, 4.625. 930 | 86.5 | 2.84. 4.2 Loa: 1.6 5r 
ADOCOINR. 8 416 | 44.1 120.1 | 3.5 { 16:2 | 6.8 | ayag 
2. 65 Compositae 
mtomological............ B55 1 90.21 10.39 584 2b] £5 Loder 
Anthecological. .....:...... B55 135-01 37:01 (S12 | 14.7 | 9-3 13300 
59, Germany, Miiller.........]...... Bi 1 27184 7-7 + 0.8 Logo F te8 
is MIM ivi es ence aO.3 1 27.1 1.16.0 | 11.2 | 2.4: | 4030 
3- 51 plants 
Flowers and insects........|...... 40.4 | 25.1 | 15.5 | 13.8| 4-9 | 1386 
Anthecological, Europe.....|...... 4.5 1534.79 7) 6:31 3.0 | 967 887 
Entomological, Europe.....|...... 88.6 | 4:4} 2.3 | X681. 3-% 1° o56 
me Vi i Bet 44.6 | 25.4 | 12.4 | 11.7] 5.7 | 6127 
Okar cbuseve WEIS SS ee 43.2) $7.8 1 31.6 1 16.61" 7.4 | 3289 
Flowers and insects........|...... A341 20.5:) 19.2.1 32.2 1 6.3 | 6r6s 
they should be distributed under the natural families of plants. 
The visits of each nest-making bee should be distributed under 
three headings: one showing the pollen visits of the female, another 
showing the nectar visits of the female, and a third showing the 
nectar visits of the male. If they are arranged under alphabetical 
lists of plants, and the sexes and pollen and nectar visits of the 
bees suppressed, they have little use as entomological data. 
IXING ANTHECOLOGICAL LISTS AND COLLECTORS’ NOTES.—In 
his Bliitenbiologie Knutu gives a list of 37 entomologists whose 
notes are included as if they furnished anthecological data. The 
