6i8 
Willis and Bur kill. — Flowers and 
Class AB, § 4 6. Berberis Type. 
190. Berberis Aquifolium, Pursh. [Lit. N.C.E. 34 .] In cultivation. 
Visitors. Hymenoptera. Aculeata : Apidae\ (1) Bombus terrestris L., sh. 
(2) B. lapponicus F., sh. Both 14. V. 98. 800 t. 
Class AB, § 47. Acer Type. 
191. Acer Pseudo-platanus, Linn. [Lit. N.C.E. 3 b, 14 , 18 , 21 b, 34 , 
Warnstorf 2507 .] 
Visitors. Lepidoptera. Heterocera : Noctuidae : (1) 1 sp., 15. VI. 99, 800 ft. 
Hymenoptera. Aculeata: Apidae : (2) Apis mellifica L., sh. 21-24. V. 96; 24. V- 
97, 7-800 ft. (3) Bombus terrestris L., sh. 21. V. 96; 19-26. V. 97, 7-800 ft. 
Vespidae : (4) Vespa sp., 15. VI. 99, 900 ft. Petiolata parasitica: Ichneumonidae : 
(5) 1 sp. 15. VI. 99, 900 ft. Diptera. Bibionidae : (6) Bibio nigriventris Hal., 15. 
VI. 99, 900 ft. Anthomyiidae : (7) Trichophthicus sp., sh. 15. VI. 99, 8-900 ft. 
Coleoptera. (8) Meligethes viridescens F., 15. VI. 99, 900 ft. (9) Rhagonica 
limbata Thoms., 15. VI. 99, 900 ft. 
Class AB, § 48. Caltha Type. 
192. Caltha palustris, Linn. [Lit. Brit. 23 , 29 , Darwin 485 ; N.C.E. 
1 , 3 a, 14 , 16 , 18 , 34 ; Arct. 36 ; Alps 2, 21 b ; Pyren. 17 .] Above 1,800 
feet we get the variety minor ; it flowers later than the type. As a result 
of counting the organs of twenty-eight flowers from 2,600 feet we found the 
stamens to average nearly 57, and the carpels 4-5 (Cf. Burkill in Journ. Linn. 
Soc. Bot. xxxi. pp. 233-4). 
Visitors. Hymenoptera. Petiolata parasitica: Chalcididae : (1 and 2) 2 spp, 
22. VI. 95, 2,200 ft. and 15. V. 98, 800 ft. Diptera. Syrphidae : (3) Chilosia 
fraterna Mg., sh. 24-26. VI. 95, 8-900 ft. Empidae\ (4) Empis lucida Ztt., sh. 12. 
VI. 99, 2,500 ft. (5) E. ? borealis L., 27. V. 97, 800 ft. (6) Rhamphomyia sulcata 
Fin., ? sh. 10. VI. 99, 700 ft. (7) Clinoceira stagnalis Hal., 19. VI. 95, 2,600 ft. 
Bibionidae'. (8) Dilophus albipennis Mg., sh. 22. VI. 95, 2,400 ft. Chironomidae : 
(9) 1 sp., sh. 15. V. 98, 800 ft. Tachinidae : (10) Siphona geniculata Deg., 21. V. 
96, 800 ft. Muscidae : (n) Pollenia vespillo F., 10-12. VI. 99, 700 and 2,500 ft. 
Anthomyiidae : (12) Hyetodesia incana W., 19. VI.-i. VII. 95 ; 23. V. 96, 8-2,700 ft. 
(13) Trichophthicus sp., sh. 24. VI. 95, 2,000 ft. (14) Hylemyia nigrescens Rnd., 
fp. 12. VI. 99, 2,500 ft. ab. (15) Anthomyia sulciventris Ztt., 19. VI. 95, 2,600 ft.; 
22. V. 96, 2,400 ft.; 18-27. V. 97, 6-800 ft. (16 and 17) Anthomyia spp. fp. and 
seeking h. 19-25. VI. 95 ; 22-23. V. 96 ; 20. V. 97 ; 13-16. V. 98 ; 10-14. VI. 99, 
7-2,600 ft. (18) Azelia aterrima Mg., 26. VI. 95, 800 ft. Phoridae : (19) Phora 
rufipes Mg., fp. and seeking h. 22. V. 96, 2,400 ft. Coleoptera. (20) Meligethes 
viridescens F., sh. 22-24. VI. 95, 16-2,200 ft. (21) M. aeneus F., fp. and sh. 21. V. 
96 ; 20. V. 97 ; 10. VI. 99, 7-900 ft. (22) Anthobium lapponicum Mann., fp. 21. 
V. 96, 800 ft. Hemiptera. (23) Lygus ?, 10. VI. 99, 700 ft. Neuroptera. 
