ROSACEAE 383 



on they may also bring about self-pollination, for the stigmas remain receptive till the 

 innermost anthers dehisce. The latter may also occur automatically. 

 Visitors. — Vide infra. 



917. S. salicifolia L., and 918. S. ulmifolia Scop. (Herm. jMuller, ' Fertili- 

 sation,' pp. 224-6, 'Weit. Beob.,' 11, p. 243.) — These species are cultivated along 

 with S. sorbifolia as ornamental shrubs. 



Visitors. — Herm. Miiller gives the following list for these two species and 

 S. sorbifolia, all three of which flower at the same time. — 



A. Coleoptera. {a) Cerambycidae: i. Clytus arietis Z., nect-lkg. ; 2. Gram- 

 moptera ruficornis F., do. ; 3. Leptura livida F., very freq., nect-lkg. ; 4. Strangalia 

 armata Hbst., nect-lkg. ; 5. S. attenuata Z., freq., nect-lkg. ; 6. S. nigra Z., nect-lkg. 

 (/5) Cisielidae: 7. Cistela murina Z., freq., dvg. the anthers and petals. (<r) Der- 

 mestidae : 8. Anthrenus muscorum Z., very freq., nect-lkg. ; 9. A. pimpinellae F., do. ; 

 10. A. scrophulariae Z., do.; 11. Attagenus pellio Z., do.; 12. Byturus fumatus F., 

 do. (d) Elateridae: 13. Cardiophorus cinereus Hbst., nect-lkg.; 14. Lacon murinus, 

 Z., do. (e) Lagriidae: 15. Lagria hirta Z., nect-lkg. i^f) Mordellidae : 16. Anaspis 

 frontahs Z., freq., nect-lkg.; 17. A. maculata Fourc, nect-lkg. {g) Nitidulidae : 

 18. IMehgethes, freq. (h) Scarabaeidae : 19. Cetonia aurata Z. ; 20. Phyllopertha 

 horticola Z., dvg. the flowers; 21. Trichius fasciatus Z., do. (z) Tdephoridae : 

 22. Cantharis fulva Scop. ; 23. Dasytes flavipes F.\ 24. IMalachius bipustulatus Z., 

 dvg. the anthers. B. Diptera. {a) Bibionidae : 25. Bibio hortulanus Z., nect-lkg. 

 (1^) Ckironomidae : 26. Ceratopogon sp., in large numbers, skg. {c) Conopidae: 

 27. Myopa polystigma Rojid., skg. ; 28. Physocephala rufipes F., do. {d) Empidae: 

 29. Empis opaca F., freq., skg. ; 30. E. punctata F., skg. ; 31. E. tesselata F., very 

 freq., skg. (e) Muscidae: 32. Sp. of Anthomyia ; 33. Cyrtoneura simplex Loew; 

 34. Echinomyia fera Z. ; 35. E. magnicornis Zeti. (Borgstette) ; 36. Gymnosoma 

 rotundata Z. ; 37. Lucilia cornicina F., skg. ; 38. L. sylvarum Mg., do. ; 39. Mesem- 

 brina meridiana Z. ; 40. Musca corvina F.; 41. Onesia cognata J\fg. ; 42. O. floralis 

 R.-D.; 43. Sarcophaga carnaria Z., skg. (/) Stratiomyidae: 44. Odontomyia 

 viridula F., skg. ; 45. Stratiomys riparia Mg.., do. {g) Syrphidae: 46. Ascia lanceo- 

 lata Mg., skg.; 47. A. podagrica F., do.; 48. Cheilosia gilvipes Zett., skg. and 

 po-dvg. ; 49. Chrysogaster viduata Z. ; 50. Chrysotoxum festivum Z. ; 51. Eristalis 

 arbustorum Z., freq., skg. and po-dvg. ; 52. E. intricarius Z., do. ; 53. E. nemorum 

 Z., do. ; 54. E. pertinax Scop., do.; 55. E. sepulcralis Z., do. ; 56. E. tenax Z., do. ; 

 57. Helophilus floreus Z., freq., skg. ; 58. Melithreptus strigatus 6'/(jfg'. ; 59. Pipiza 

 funebris Mg. ; 60. Rhingia rostrata Z., in great numbers, skg. ; 61. Syritta pipiens 

 Z., do.; 62. Syrphus excisus Z^//. ; 63. S. ribesii Z., po-dvg. ; 64. Volucella bombylans 

 Z., var. plumata Mg. ; 65. Xylota ignava Pz.; 66. X. lenta Mg.; 67. X. segnis Z. 

 {li) Tabanidae; 68. Chrysops caecutiens Z. J, skg. (z) Tipididae: 69. Pachyrhina 

 pratensis Z., nect-lkg. C. Hymenoptera. (a) Apidae : 70. Andrena albicans MuH. 

 5, freq., skg. and po-cltg. ; 71. A. albicrus A'. 5 and J, do.; 72. A. dorsata K. 5, do.; 

 73. A. fucata Sm. 5, do.; 74. A. fulvicrus A'. J, skg.; 75. A. nigroaenea A'. J, do.; 

 76. A. parvula A'. 5, freq., skg. and po-cltg. ; 77. A. schrankella Ayl. i, skg.; 78. A. 

 trimmerana A'. $, do.; 79. Apis mellifica Z. 5, skg. and po-cltg.; 80. Bombus 

 muscorum F. 5, po-cltg.; 81. B. scrimshiranus A', ^j running quickly over the 

 inflorescences and po-cltg.; 82. B. terrester Z. }, skg. and po-cltg.; 83. Halictus 

 flavipes F. 5; 84. H. sexnotatus A'. $, po-cltg. ; 85. H. sexstrigatus Schenck 5, skg. ; 

 86. H. villosulus K. 5, do. ; 87. Nomada ruficornis Z. 5, do. ; 88. Osmia rufa Z. $, 

 po-cltg. ; 89. Sphecodes gibbus Z. 5, skg. (Budd.). {b) Chrysididae : 90. Hedrychum 

 lucidulum F. S. (c) Evaniidae: 91. Foenus sp., nect-lkg. (Budd.). (d) Formicidae: 

 92. Lasius niger Z. 5, nect-lkg. ; 93. Myrmica levinodis Nyl. J; 94, Numerous small 

 ants, nect-lkg., and preying on the minute black midges often found nect-lkg. 

 (if) Ichneumonidae : 95. Various sp. (/") Sphegidae: 96. AmmophiJa sabulosa Z. ; 



