UMBELLIFERAE 



467 



to develop. The pollen-grains are white in colour, ellipsoidal, tuberculated, 63 yu. 

 long and 25 p broad. 



Visitors. Herm. Miiller (H. M.) and myself (Kn.) observed the following. 



A. Coleoptera. Dermestidae : 1. Anthrenus pimpinellae F. (H. M.). B. Di- 

 ptera. (a) Muscidae : 2. Lucilia caesar Z. (Kn.); 3. L. cornicina F., nect-lkg. (H. M., 

 Kn.); 4. Miltogramma punctata Mg. (H. M.); 5. Onesia sepulcralis, Mg., freq. 

 (Kn.); 6. Pollenia rudis F. (Kn.) ; 7. Sarcophaga carnaria Z.(Kn.); 8. Scatophaga 

 merdaria L. (Kn.) ; 9. S. stercoraria Z., very numerous (Kn.). (5) Syrphidae : 10. 

 Eristalis arbustorum Z., po-dvg. and nect-lkg. (H. M., Kn.); 11. E. nemorum Z., 

 common (Kn.); 12. Helophilus fioreus Z. (Kn.); 13. Melanostoma gracilis Mg. 

 (Kn.); 14. Syritta pipiens Z. (Kn.) ; 15. Syrphus ribesii Z. (Kn.). C. Hemiptera. 

 16. Lygus (Orthops) kalonii Z. (Kn.). D. Hymenoptera. (a) Apidae: 17. An- 

 drena albicrus K. 5, skg. (H. M.); 18. Bombus lapidarius Z. (Kn.) ; 19. B. terrester. 

 Z. (Kn.); 20. Prosopis armillata Nyl. J, skg. (H. M.); 21. P. signata Pz. $, do. 



FlG. 158. Aslraiitia minor, L. (after Herm. Miiller). A. Hermaphrodite flower in the first (male) 

 stage. B. Upper part of a hermaphrodite flower in the second (female) stage. C. Male flower with 

 vestiges of ovary and styles. D. Male flower without any such vestiges. E. Fleshy disk (with 10 nectar- 

 pits) on the ovary of a male flower. 2, 3, 4, 5, stamens ; gr, style ; ov, ovary ; p, petal ; s, sepal ; st, stigma. 



(H. M.). (Z>) Sphegidae: 22. Cerceris arenaria Z. (Kn.); 23. Oxybelus uniglumis 

 Z. (Kn.). (c) Vespidae: 24. Odynerus parietum Z. (Kn.); 25. Vespa sylvestris Scop. 

 (Kn.). E. Lepidoptera. Rhopalocera: 26. Pieris sp., skg. (Kn.); 27. Vanessa 

 atalanta Z., do. (Kn.). 



Herm. Miiller saw 7 beetles, 3 flies, 2 Hymenoptera, and a Lepidopterid in the 

 Alps. F. F. Kohl noticed 3 true wasps in the Tyrol (Odynerus parietum Z. ; 

 O. trifasciatus F. ; O. simplex F.) ; and MacLeod 3 Hymenoptera, 3 beetles, and 2 

 Muscids in the Pyrenees (Bot. Jaarb. Dodonaea, Ghent, iii, 189 1, pp. 417-18). 



Loew observed the following in the Berlin Botanic Garden. 



A. Diptera. (a) Muscidae : 1. Graphomyia maculata -SV^. ; 2. Lucilia caesar Z. 

 (6) Syrphidae : 3. Eristalis nemorum Z. ; 4. Syritta pipiens Z. B. Hymenoptera. 

 (a) Apidae: 5. Apis mellifica Z. , skg. (5) Sphegidae: 6. Cerceris variabilis ; and on 



H h 2 



