168 
Psyche 
[October 
and red 56.0. The I'ong-tongued bee visits show gains over the 
short-tongued of 19.6 for Ma, 23.8 for Mas and 22.1 for red. 
Short-tongued Bees . — Of 3002 visits to 305 flowers, 46.7 per 
cent are to Mis, 24.4 to Mi, 10.8 to Pol, 52.1 to white, 35.8 to 
yellow, 10.8 to Umbelliferse and 21.9 to Compositse. Of the 
flowers visited Mis shows 29.1 per cent and Mi 32.1. Ninety- 
seven prefer Mis, 20 Mas, 18 Mi, 6 Pol, 4 Ma, 87 white, 53 yellow 
and ten red. Visits to red are 11.9 per cent, Berlin Garden 34.3, 
Alps 36.2. There is a preference for Mas after June. The max- 
imum changes from AB39.1 to B' 44.1. Of the visits of the 
polyleges (Prosopis excluded) 44.6 per cent are to Mis, 27.9 to 
Mi, 9.3 to Pol, 52.8 to white, 33.3 to yellow; of the oligoleges 
49.7 to Mis, 31.7 to Mas, 7.1 to Pol, 55.3 to yellow; of the in- 
quilines 58.7 to Mis, 29.3 to Pol, 62.7 to white and 36.5 to yellow. 
Their preference for Mi connects the short-tongued bees pretty 
definitely with the origin of these most primitive entomophilous 
flowers. 
The short-tongued bees, compared with the long-tongued, 
show preferences for Mi 12.4, Mis 24.6, Pol 6.4, white 17.6 and 
yellow 4.4. Non-pollinating visits (192) show under Ma 56.7, 
Mas 38.5 and red 53.6. 
Bees, Total (6063 visits to 417 flowers). — Of bee visits 34.2 
per cent are to Mis, 25.7 to Mas, 43.2 to white and 33.5 to yellow, 
127 preferring Mis, 93 Mas, 35 Ma, 29 Mi, 6 Pol, 130 white, 96 
yellow and 70 red. Visits to red are 23.1 per cent, Berlin Garden 
55.4 and the Alps 57.1. As might be expected, bee visits coincide 
more nearly with the observed flora than the visits of any other 
group of anthophilous insects. 
Before July the bees prefer Mis, after June they prefer Mas. 
The change in the maximum from Mis 38.1 to Mas 45.2 results 
from the combination of the short-tongued bees which pre- 
dominate early with the long-tongued bees which predominate 
late. The maximum shifts from AB 29.9 to B' 45.7. 
The polyleges {Prosopis excluded) make 73.3 per cent of the 
total bee visits. They show the highest percentages of visits 
to Ma 16.9, Mi 21.0, red 24.6 and white 44.6, the oligoleges to 
Mas 50.0 and yellow 50.4, and the inquilines to Mis 39.9 and 
Pol 8.5. 
