Insects in Great Britain . 
629 
ponicus F., sh. 9-14. V. 98, 8-1,900 ft. (2) B. terrestris L., 9-1 1. V. 98, 800 ft. 
Diptera. Syrphidae : (3) Platychirus discimanus Lw., fp. and sh. 21. V. 97 ; 14. V. 
98, 9-1,300 ft. (4) Eristalis arbustorum L., sh. 14. Y. 98, 900 ft. Empidae r 
(5) Empis borealis L., sh. 21. V. 97, 1,300 ft. (6) E. niveipennis sh. 21. V. 97, 
1,300 ft. Muscidae : (7) Lucilia cornicina F., 21. V. 97, 1,300 ft. An thorny iidae : 
(8) Anthomyia sulciventris Ztt., sh. and fp. 21. V. 97, 1,300 ft. (9) Anthomyia sp., 
9-14. V. 98, 9-1,500 ft. Cordyluridae : (10) Scatophaga stercoraria L., sh. 9. V. 98, 
800 ft. Sepsidae : (1 1) Sepsis cynipsea L., ? sh. 21. V. 97, 1,300 ft. Hemiptera. 
(12) Anthocoris sp., sh. 14. V. 98, 900 ft. 
Visitors to female catkins. Hymenoptera. Aculeata : Apidae : (1) Bombus 
lapponicus F., sh. 9-16. V. 98, 8-1,400 ft. Diptera. Empidae'. (2) Empis lucida 
Ztt., 16. V. 98, 800 ft. Chironomidae : (3) 1 sp., 16. V. 98, 800 ft. Anthomy iidae : 
(4) Anthomyia sp., 14. V. 98. 1,400 ft. all sh. 
227 . Salix aurita, Linn. [Lit. Brit. 23, 29 ; N.C.E. 1 , 3 b, 16, 33.] 
This is well visited, especially its male catkins. 
Visitors to male catkins. Hymenoptera. Aculeata : Apidae : (1) Apis mellifica 
L., cp. and sh. freq., 19-27. V. 97 ; 7-16. V. 98, 6-900 ft. (2) Bombus hortorum L., 
22. V. 97, 700 ft. (3) B. lapponicus F., sh. 20-22. V. 97; 16. V. 98, 6-900 ft. 
(4) B. terrestris L., sh. 20-22. V. 97, 6-800 ft. Vespidae : (5) Vespa sp., 20. V. 97, 
900 ft. Formicidae : (6) Formica fusca Latr., sh. 20. V. 97, 800 ft. Diptera. 
Syrphidae'. (7) Melanostoma quadrimaculatum Verrall, 7. V. 98, 600ft. (8) Chilosia 
bergenstammi Becker, sh. 22. V. 97, 600 ft. (8) Platychirus discimanus Lw., sh. 
and fp. 19-20. V. 97; 7-16. V. 98, 8-900 ft. (9) Sericomyia lappona L., sh. 20. 
V. 97, 1,200 ft. (10) Eristalis arbustorum L., sh. 16. V. 98, 700 ft. Empidae : 
(1 1) Empis borealis L., 20-27. V. 97, 6-1,200 ft. (12) Rhamphomyia cinerascens 
Mg., sh. 20. V. 97, 9-1,200 ft. (13) R. sulcata Fin., sh. 21. V. 96, 700 ft. Mycelo - 
philidae : (14) Sciara sp., 16. V. 98, 600 ft. Bibionidae : (15) Scatopse sp., sh. 19. 
V. 97, 800 ft. Chironomidae : (16) 1 sp., 27. V. 97, 700 ft. Muscidae'. (17) Lucilia 
cornicina F., sh. 19-20. V. 97, 8-1,200 ft. (18) Pollenia vespillo F,, sh. 20-27. V. 
97 ; 16. V. 98, 7-1,200 ft. Anthomyiidae : (19) Anthomyia sulciventris Ztt., fp. and 
sh. 20-27. V. 97; 7. V. 98, 7-900 ft. (20) Anthomyia sp., sh. 19. V. 97, 800 ft. 
(21) Hylemyia ?, sh. 22. V. 97, 700 ft. Cordyluridae : (22) Scatophaga stercoraria 
L., 19. V. 97 ; 16. V. 98, 7-800 ft. 
Visitors to female catkins. Hymenoptera. Aculeata: Apidae'. (1) Bombus 
terrestris L., sh. 22. V. 97; 7. V. 98, 600 ft. (2) B. lapponicus F., 22. V. 97; 
7-16. V. 98, 6-800 ft. (3) Andrena clarkella Kirby, sh. 22. V. 97, 600 ft. Diptera. 
Syrphidae'. (4) Platychirus discimanus Lw. 19. V. 97; 7. V. 98, 6-1,300 ft. 
(5) Chilosia sparsa Lw., sh. 22. V. 97, 600 ft. Mycetophilidae : (6) Sciara sp., 16. V. 
98, 600 ft. Muscidae : (7) Lucilia cornicina F., 20. V. 97, 900 ft. (8) Pollenia 
vespillo F., sh. 20. V. 97; 7. V. 98, 6-1,200 ft. Anthomyiidae'. (9) 1 sp., 19-20. V. 
97, 8-1,800 ft. Cordyluridae : (10) Scatophaga stercoraria L., sh. 20-22. V. 97; 
7-16. V. 98, 6-1,200 ft. Coleoptera. (11) Phyllodecta vulgatissima L., sh. 22. V. 
97, 700 ft. 
