Insects in Great Britain. 
549 
Class H § 21. Explosive Leguminous Type. 
118. Genista anglica, Linn. [Lit. N.C.E. 1 , 3 b, 14 , 14 a, 
34 , 40 .] A species little visited at Clova, where the genera 
of mid-tongued Hymenoptera observed on it by Muller, Alfken, 
and Hoppner are poorly represented. 
Visitors. Hymenoptera. Aculeata : Apidae : (1) Apis mellifica 
L., cp. 2. V. 97, 7-800 ft. (2) Bombus terrestris L., cp. and seeking 
h. 25. V. 97, 800 ft. (3) B. lapponicus F., seeking h. 22. V. 97, 700 ft. 
Diptera. Anthomy iidae : (4) Anthomyia sulciventris Ztt., fp. and 
seeking h. 20-22. V. 97, 8-900 ft. 
119. Ulex europaeus, Linn. [Lit. Brit. 23 , 29 ; Ogle 
1905 ; N.C.E. 8, 14 , 18 , 33 .] Apis is a more frequent 
visitor than the Bombi, but both genera are regular visitors 
in Scotland and in England. Apis visits the flowers 
abundantly in Flanders. After explosion a variety of flies 
find pollen enough to attract them. Many times we have 
seen the Bombi and Apis thrusting their proboscis into the 
base of the flower seeking for honey. 
Visitors. Hymenoptera. Aculeata: Apidae'. (1) Apis mellifica L., 
cp. and seeking h. 21. V. 96, 20-22. V. 97, 7-16. V. 98, 10. VI. 
99, 6-900 ft. (2) Bombus terrestris L., cp. and seeking h. 20-27. V. 
97, 10-19. VI. 99, 7-800 ft. (3) B. lapponicus F., seeking h. 20-27. 
V. 97, 7-800 ft. (4) B. agrorum F., 27. V. 97, 800 ft. Diptera. 
Syrphidae : (5) Syrphus sp., fp. 20-27. VI. 97, 800 ft. Muscidae : (6) 
Pollenia vespillo F., fp. 27. V. 97, 800 ft. Anthomyiidae : (7) An- 
thomyia sulciventris Ztt., fp. 19-27. V. 97, 7-900 ft. (8) A. sp., fp. on 
exploded flowers, 16. V. 98, 700 ft. Thysanoptera. (9) Thrips sp., 
21. V. 97, 800 ft. 
120. Cytisus scoparius, Link. [Lit. Brit. 23 , 34 ; Henslow 
990 ; Darwin 991 ; N.C.E. 1 , 3 b, 14 , 16 , 18 , 25 , 33 , 34 , 40 ; 
De Vries 2460 .] The flowers are very well visited, the bees 
(Apis and Bombi) proceeding from flower to flower regularly. 
Apis is more abundant than the Bombi : second in abundance 
is Bombus terrestris ; Anthomyiids and Meligethes viridescens 
are very common on exploded flowers. It is obvious, as 
P p 2 
