180 THE ENTOMOLOGIST. 
2,1; 14,6; 1,7; 1,2; 4,2; 12 (O. campestris), and was lost. 
It thus paid 70 visits to these two species, i.e. 45 to the one, and 
25 to the other. Anthyllis vulneraria, Trifolium hybridum ?, more 
than one blue Vicia, several Hieracia, a Campanula, Erigeron 
acris, Chrysanthemum leucanthemum, Achillea millefoliwum, Cen- 
taurea scabiosa, &e., grew around. 
59.—Same date and place. A specimen of Colias hyale 
visited Hieracium pilosella twice, a common yellow Hieraciwm 
three times (settled momentarily on Anthyllis vulneraria), then 
one more flower of the yellow Hieraciwm, and was lost. All these 
flowers were yellow, of one shade or another. 
60.—Aug. 4, 1882. A flower-bed, Kurplaze, St. Moritz. An 
individual of Argynnide, viz. A. aglaia, visited Thymus serpyllum 
ten times, and was lost, having avoided Thymus acinos, Solidago 
virgaurea, Sedum acre, Dianthus deltoides, Chrysanthemum leucan- 
themum, &e. 
61.—Aug. 5, 1882. Bank at St. Moritz. A medium-sized 
humble-bee visited Carduus pratensis five times and Centaurea 
scabiosa ten times (two composite flowers, both reddish purple 
and of the same general appearance), and was then lost, having 
avoided all else, though Polygonum bistorta, Solidago virgaurea, 
Achillea millefolium, Epilobium angustifolium, and some other 
flowers, grew plentifully on the same patch. 
62.—Same date. Meadow at St. Moritz. A large fritillary, 
viz. A. aglaia, visited Scabiosa succisa twice, Carduus pratensis 
three times, and was lost. Only a few other flowers grew around. 
63.—Aug. 7, 1882. Same place as obs. No. 49. A very 
small brisk bee visited Thymus acinos 28 times, Medicago sativa 
once, and was lost. 
64.—Same date and place. A medium-sized bee, at work on 
the edge of the above flower-patch, visited Hchiwm vulgare 
21 times, having avoided all else. Plenty of the following flowers 
grew around:—Centaurea scabiosa and Lychnis rupestris, with 
some Dianthus deltoides, Campanula pumila, Thymus serpyllum, 
HMieracium, Helianthemum vulgare, Thymus acinos, &e. 
65.—Same date and place. A bee of the same species paid 
five visits to Centaurea scabiosa, avoiding all beside. 
66.—Same date and place. A slightly different bee visited 
Centaurea scabiosa 13 times, Thymus acinos 5, C. scabiosa 11, and 
was lost. 
