ROSACEAE 367 



Verhoeff observed the following in Norderney. 



A. Coleoptera. (a) Nitidulidae: 1. Meligethes aeneus F. {b) Staphylinidae: 

 2. Tachyporus hypnorum L. B. Diptera. (a) Empidae: 3. Hilara quadrivittata 

 Mg., skg. (5) Muscidae: 4. Anthomyia sp., freq., skg. and po-dvg. ; 5. Ariciaincana 

 Wiedem. &, skg. and po-dvg. ; 6. Calliphora erythrocephala Mg. ; 7. Cyrtoneura 

 hortorum Fall. $, po-dvg. ; 8. Lucilia caesar Z. <j> and $, skg. ; 9. Myospila medita- 

 bunda F. ; 10. Scatophaga stercoraria Z. $; 11. Sepsis cynipsea Z. (c) Syrphidae : 

 12. Cheilosia sp. 5; 13. Chrysogaster macquarti Low 5; 14. Eristalis arbustorum 

 Z.J, skg. ; 15. E. intricarius Z. ; 16. Helophilus pendulus Z. $; 17. Melithreptus 

 menthastri Z. 5, po-dvg. ; 18. Pipizella virens F. $; 19. Platycheirus clypeatus ^^. 

 5, skg. ; 20. P. peltatus Mg. t ; 21. Syrphus ribesiiZ. (d) Therevidae : 22. Thereva 

 inilis Z.J. C. Hymenoptera. (a) Apidae: 23. Andrena albicans Mull. $, skg. 

 md po-cltg. ; 24. Colletes cunicularius Z. 5, do.; 25. Osmia maritima Friese. 

 b) Chrysididae : 26. Holopyga ovata Dahlb. (c) Formicidae: 27. Formica fusca Z. 

 j, skg. ; 28. Lasius niger Z. 5, do. D. Lepidoptera. Lycaenidae: 29. Polyom- 

 natus phlaeas Z. 



Leege noticed the following in Juist. 



A. Diptera. Syrphidae: i.Volucella bombylans Z., very common. B. Hy^ 

 menoptera. (a) Apidae: 2. Andrena albicans Mull. $, freq., skg. ; 3. A. albicrus 

 K. 2, freq., skg. and po-cltg.; 4. Colletes cunicularius Z., rare; 5. Halictus rubi- 

 :undus Chr. 5, once ; 6. Nomada ruficornis Z. $, do. ; 7. Prosopis brevicornis Nyl. 

 5, rare, (b) Sphegidae : 8. Ammophila sabulosa Z., rare, skg. 



MacLeod saw 3 Muscids in Flanders (Bot. Jaarb. Dodonaea, Ghent, vi, 1894, 



^313)- 



In Dumfriesshire several Diptera were recorded (Scott-Elliot, ' Flora of 

 Dumfriesshire,' p. 59). 



863. P. Wiemanniana Guenth. Grab, et Wimm. (= P. Guentheri Poht). 

 Visitors. F. F. Kohl observed the ruby-wasp Chrysis dichrora Klg. in the 



ryrol. 



864. P. reptans L. (Herm. Miiller, 'Fertilisation,' pp. 232-3, ' Weit. Beob.,' 

 I, p. 241 ; Schulz, 'Beitrage,' II, pp. 187-8 ; ' Knuth, ' Bloemenbiol. Bijdragen.') 

 The flower mechanism of this species agrees with that of P. Anserina. Schulz 

 noticed gynomonoecism and gynodioecism. 



Visitors. I only observed Volucella bombylans Z. and Meligethes. 

 Herm. Miiller gives the following list, partly after Buddeberg (Budd.). 

 A. Coleoptera. 1. Notoxys monoceros Z., in the flowers in large numbers. 

 B. Diptera. (a) Empidae : 2. Empis livida Z., skg. (Thuringia). (b) Muscidae : 

 ]. Aricia sp., skg. (Thuringia). (c) Syrphidae: 4. Eristalis arbustorum Z., skg. 

 Thuringia); 5. Syritta pipiens Z., skg. and po-dvg. (Thuringia); 6. Syrphus 

 .rcuatus Fall., po-dvg. C. Hymenoptera. (a) Apidae: 7. Andrena albicrus 

 K. J; 8. A. nana K. $, skg.; 9. Halictus cylindricus F. $, do.; 10. H. flavipes F. 

 '. skg. and po-cltg. (Budd.) ; 11. H. leucozonius Schr. 5, po-cltg. ; 12. H. maculatus 

 sm. ^ and &, skg. and po-cltg. ; 13. H. sexstrigatus Schenck 5. do. ; 14. H. tetrazonius 

 Klg. $ and J, do. (Thuringia, Budd.); 15. Nomada flavogu tata K. 5, skg. (Budd.); 

 f\ N. succincta Pz. 4, do. ; 17. N. xanthosticta K. $, do. ; 18. Prosopis hyalinata 

 Sm., do. ; 19. Sphecodes gibbus Z. S, do. {b) Sphegidae: 20. Ammophila sabulosa 

 - J ; 21. Oxybelus bellus Dahlb., nect-lkg. 



MacLeod (Flanders) observed 2 hover-flies and a Muscid (Bot. Jaarb. Dodo- 

 iaea, Ghent, vi, 1894, p. 313), and (Pyrenees) a Muscid (op. cit. iii, 1891, p. 431). 



