556 Willis and Bur kill. — Flowers and 
Class H § 23. Digitalis Type. 
133 . Digitalis purpurea, Linn. [Lit. Brit. 23, 39 ; Ogle 
1904 ; Darwin 482 ; N.C.E. 1 , 4, 21 b, 30, 32, 33, 34 ; Alps 9.] 
Bees and beetles visit this plant. Contabescence was 
observed. 
Visitors. Hymenoptera. Aculeata: Apidae : (1) Bombus ter- 
restris L., sh. 25. IX. 95, 800 ft. and ? 29. VI. 95, 1,100 ft. (2) B. 
agrorum F., cp. and sh. 5. VII. 95, 800 ft. once. (3) B. venustus 
Smith, sh. 18. VI. 96, 800 ft. once. Diptera. Anthomyiidae : (4) 
Drymia hamata Fin., 25. VI. 95, 800 ft. (5) Anthomyia sp., seeking 
h. 21. IX. 95, 800 ft. Coleoptera. (6) Meligethes viridescens F., 2. 
VII. and 21. IX. 95, 800 ft., 29. VI. 96, 11-1,500 ft. freq. Thy- 
sanoptera. (7) Thrips sp., sh. 21. VI. 96, 1,500 ft. 
134 . Mimulus Langsdorffii, Donn. (M. luteus , auctorum 
anglorum). [Lit. N.C.E. 1, 9 ; Batalin 147.] Self-pollination 
occurs in the fall of the corolla by the anthers sliding up the 
style to the stigma. The stigma is very sensitive. The 
flower is obviously suited to Bombus-like insects ; but the 
throat is rather low for our British Bombi. We have not 
seen them to visit. 
Visitors. Diptera. Anthomyiidae'. (1) Anthomyia sp., sh. 22. VI. 
96, 800 ft. 
Class H § 24. Erica Type. 
135 . Arctostaphylos Uva-ursi, Spreng. [Lit. N.C.E. 34; 
Arct. 36, 37 a ; Alps 2 , 9 ; Pyren. 17.] As the snows melt 
the young inflorescences can be found in the newly cleared 
patches of ground. The first flowers open in early May, and 
at mid May the plant is in full flower. These flowers are 
strongly scented, and are entirely visited by Bombi, chiefly 
B. lapponicus, which runs along the ground eagerly from 
bunch to bunch, sucks hanging back downwards, and then 
flies or crawls off to another plant. A bee, probably Bombus 
terrestris, often bites the corolla. Seed is freely formed, and 
ripens in September. 
Visitors. Hymenoptera. Aculeata: Apidae : (1) Bombus terres- 
