. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 38o ANGIOSPERMAE—DICOTYLEDONES the crowded nature of the inflorescences automatic cross-pollination may also happen by the fall of pollen upon the stigmas of neighbouring flowers. Schulz observed andromonoecious stocks.— Visitors.—I observed the following, all po-dvg.— A. Coleoptera. (a) Cerambycidae: i. Gaurotes virginea Z.; 2. Judolia ceram- byciformis Schr. ; 3. Leptura livida F.; 4. L. maculicornis Deg. ; 5. Stenocorus mordax Deg. (b) Chrysomelidae : 6.
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 38o ANGIOSPERMAE—DICOTYLEDONES the crowded nature of the inflorescences automatic cross-pollination may also happen by the fall of pollen upon the stigmas of neighbouring flowers. Schulz observed andromonoecious stocks.— Visitors.—I observed the following, all po-dvg.— A. Coleoptera. (a) Cerambycidae: i. Gaurotes virginea Z.; 2. Judolia ceram- byciformis Schr. ; 3. Leptura livida F.; 4. L. maculicornis Deg. ; 5. Stenocorus mordax Deg. (b) Chrysomelidae : 6. Cryptocephalus sericeus L. [c) Scarahaeidae : 7. Trichius fasciatus Z. B. Diptera. Syrphidae: 8. Syritta pipiens Z., freq. Herm. Miiller gives the following list.— A. Coleoptera. (a) Cerambycidae-. i. Judolia cerambyciformis&'^r.; 2. Leptura maculicornis Deg., dvg. the flowers; 3. Pachyta quadrimaculata Z., dvg. the anthers ; 4. Strangalia attenuata Z., do.; 5. S. quadrifasciata Z., dvg. the flowers, (b) Cleridae : 6. Trichodes apiarius Z., dvg. the flowers, (c) Dermestidae: 7. Anlhrenus pimpi- nellae Z'., dvg. the flowers. (d) Mordellidae: 8. Mordella aculeata Z. {e') Niti- dulidae: 9. Cychramus luteus Oliv. {/) Scarabaeidae: 10. Cetonia aurata Z., dvg. the flowers; 11. Trichius fasciatus Z., do. {g) Tehphoridae: 12. Malachius bi-. FlG. 120. Vlinariapenlapetala, GilibA^hr:r Herm. Miiller). (i) Young flower. (2) Older flower. (a) anthers ; j/, stigmas. pustulatus Z., dvg. the anthers. B. Diptera. {a) Miiscidae: 13. Anthomyia sp. \b) 6>r/>;4/(/(z« (all po-dvg.): 14. Eristalis arbustorum Z., very freq.; 15. E. horticola Deg.; 16. E. nemorum Z.; 17. E. sepulcralis Z.; 18. E. tenax Z.; 19. Helo- floreus ; 20. Syritta pipiensZ.; 21. Volucella bombylansZ.; 22. V. pellucens Z. C. Hymenoptera. {a) Apidac: 23. Andrena coitina A^. j, po-cltg.; 24. Apis mellifica Z. 5, freq., po-cltg.; 25. Prosopis armillata A^y/. J, freq., po-dvg.; 26. P. clypearis Schenck t,
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