3 8o 



ANGIOSPERMAEDICOTYLEDONES 





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) Scarabaeidae : 

 7. Trichius fasciatus L. B. Diptera. Syrphidae : 8. Syritta pipiens L., freq 



Herm. Miiller gives the following list. 



A. Coleoptera. (a) Cerambycidae : 1. Judolia cerambyciformis Schr. ; 2. Leptura 

 maculicornis Deg., dvg. the flowers ; 3. Pachyta quadrimaculata L., dvg. the anthers ; 

 4. Strangalia attenuata L., do.; 5. S. quadrifasciata L., dvg. the flowers. (b) Cleridae : 

 6. Trichodes apiarius Z., dvg. the flowers, (c ) Dermestidae : 7. Anthrenus pimpi- 

 nellae F., 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) Telephoridae: 12. Malachius bi- 



FlG. 20. 



Vlmaria pentapetala, Gilib. (after Herm. Miiller). (i) Young flower, 

 (a) Older flower. (a) anthers ; s/, stigmas. 



pustulatus Z., dvg. the anthers. B. Diptera. (a) Muscidae: 13. Anthomyia sp. 

 (b) Syrphidae (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- 

 philus floreus ; 20. Syritta pipiens Z. ; 21. Volucella bombylansZ.; 22. V. pellucens 

 Z. C. Hymenoptera. (a) Apidae: 23. Andrena coitina K. 5, po-cltg. ; 24. Apis 

 mellifica Z. 5. freq., po-cltg.; 25. Prosopis armillata Nyl. J, freq., po-dvg.; 26. P. 

 clypearis Schenck $, po-dvg.; 27. P. communis Nyl. $, do.; 28. P. confusa Nyl. $, 

 do. ; 29. Xylocopa violacea Z. 5, po-cltg. (b) Chrysididae : 30. Chrysis ignita L. ; 

 31. Ellampus auratus Z. ; 32. Hedrychum nobile Scop, (c) Sphegidae: 33. Pem- 

 phredon unicolor F. ; 34. Crabro larvatus Wesm. j; 35. C. wesmaeli v.d. L. &- 

 D. Lepidoptera. 36. Zygaena pilosellae Esp., trying to suck. 



Von Fricken records 2 Cerambycids (Clytus figuratus Scop, and Grammoptera 

 ruficornis F.) and a Curculionid (Apoderus erythropterus Zschoch. = A. intermedius 

 ///.) for Westphalia and East Prussia. Redtenbacher gives 2 Cerambycids (Molor- 

 chus minimus Scop, and Obrium brunneum F.) for Austria. 



Alfken saw the humble-bee Bombus terrester Z. 5 at Bremen, and Loew 

 observed the following in Silesia (' Beitrage,' p. 28). 



