SALICINEAE 387 



19. Gonia fasciata Mg.; 20, G. ornata Mg.; 21. Hydrella sp. ; 22. Hylemyia 

 cinerosa Zetl.-, 23. H. puUula Z^//. ; 24. Lucilia caesar Z., freq., skg. ; 25. L. sericata 

 Mg.; 26. Nemoraea intermedia Zeti.; 27. Scatophaga stercoraria Z. 5 and J, very 

 common, skg. ; 28. Sepsis cynipsea Z., do. ; 29. Siphona flavifrons -^^//. ; 30. Spilo- 

 gaster depuncta Za//. ; 31. S. duplicata il^. (e) Syrphidae: 32. Cheilosia praecox 

 Zf//., innumerable, skg. ; 33. Eristalis arbustorum Z., more rare, skg. ; 34. E. intri- 

 carius Z., innumerable, skg.; 35. E. pertinax Scop., freq., skg.; 36. E. tenax Z., 

 repeatedly, skg.; 37. Melithreptus scriptus Z.; 38. Pipizella virens F., freq.; 

 39. Platycheirus manicatus Mg. ; 40. Syrphus ribesii Z., rare, skg. C. Hymeno- 

 ptera. (a) Apidae: 41. Andrena albicans Miill. one 5, skg.; 42. Bombus dis- 

 tinguendus Mor, 5; 43. B. lucorum Z. 5; 44. B. muscorum Z^. 5; 45. CoUetes 

 cunicularius Z. 5 and S, in thousands, skg. and po-cltg. ; 46. Psithyrus vestalis 

 Fourcr. J. (3) Tenthredinidae : 47. Amauronematus viduatus Zi?//. $ and $, not 

 infreq. D. Hemiptera. {a) Cimicidae : 48. Anthocoris sylvestris Z., rare, skg. 

 (5) Pentatomidae : 49. Gnathoconus albomarginatus F., freq. 



Verhoeff records the following for Norderney. 



A. Coleoptera. (a) Elateridae: i. Limonius aeruginosus Oliv., one, skg. 

 {Jj) Nilidulidae : 2. Epurea aestiva Z., 2 ; 3. Meligethes aeneus F., two. B. Diptera. 

 \a) Bibionidae : 4. Bibio marci Z. 5 rare, J rare, skg. ; 5. Dilophus vulgaris Mg. 

 J very common, J not infrequent, skg. and po-dvg. ; 6. Scatopse notata Z., a $ ; 

 {d) Muscidae: 7. Anthomyia muscaria Zett. J, freq.; 8. A. sp., a J ; 9. Aricia dispar 

 Fall., a S; 10. Calliphora erythrocephala Mg. 5, several times; 11. Cynomyia 

 mortuorum Z., 2 $ and a $; 12. Homalomyia sp., a J; 13. Hydrotaea bispinosa 

 Zett., a $; 14. Limnophora littorea Fall, j and S; 15. Lucilia caesar Z. $ not 

 infreq., $ freq.; 16. Sepsis cynipsea Z., a 5. (<:) Syrphidae : 17. Eristalis arbustorum 

 Z., a <5; 18. E. intricarius Z., one, po-dvg. ; 19. Helophilus trivittatus Z'., 2 5, po-dvg. 

 and skg. ; 20. Melanostoma mellina Z. S ; 21. Platycheirus clypeatus Mg. J, po-dvg. 

 and skg. {d) Thervidae : 22. Thereva anilis Z., a J. C. Hemiptera. (a) Cimicidae : 

 23. Thriphleps minuta Z. (^) Pentatomidae : 24. Corimelaena scarabaeoides Z. 

 D. Hymenoptera. (a) Apidae : 25. Colletes cunicularius Z. 5, skg. and po-cltg., 

 J skg. ; 26. Bombus lapidarius Z., a $, skg.; 27. B. terrester L., a.^; 28. Psithyrus 

 vestalis Fourcr., a 5, skg. ; 29. Osmia maritima Friese, a ^, skg. {b) Tenthredinidae : 

 30. Pachynematus capreae Pz., a 5. E. Lepidoptera. Lycaenidae: 31. Polyom- 

 matus phlaeas Z. 



Alfken (Bremen), 2 saw-flies (Dolerus madidus Klg., and D. picipes Klg.) and 

 15 bees. 



I. Andrena albicans Miill. 5 and J; 2. A. albicrus K. 5 and J; 3. A. argentata 

 Sm. 5 and 5 ; 4. A. cineraria Z. J ; 5. A. convexiuscula K. 5 and J ; 6. A. morawitzi 

 7%j. 5, very common, skg. and po-cltg., and $; 7. A. nigroaenea K. 5 and S; 

 8. A. propinqua Schenck 5 and J ; 9. A. thoracica F. 5 and J ; 10. Halictus calceatus 

 Scop. 5, po-cltg. and skg. ; 1 1. H. flavipes F. $, po-cltg. and skg. ; 12. H. rubicundus 

 Chr. J, po-cltg. and skg., very common; 13. Nomada alboguttata H.-Sch. J; 

 14. N. succincta Pz. $ and J, skg. ; 15. Osmia rufa Z. S. 



The following were recorded by the observers, and for the localities stated. 



Knuth (Kiel, 9. 5. '96), the honey-bee, and the humble-bee Bombus terrester 

 Z. 5, skg. and po-cltg., with large pollen-masses on its hind-legs. Friese (Mecklen- 

 burg), the humble-bee Bombus jonellus K. $ {teste Brauns), not rare. 



2589. S. herbacea L. (Herm. Muller, ' Alpenblumen,' pp. 162-3; Kerner, 

 Nat. Hist. PI.,' Eng. Ed. i, II, p. 313.) The small flowers of this species, arranged 

 in inconspicuous spikes, secrete abundant nectar, and are therefore much visited by 

 insects in spite of their insignificant appearance. Kerner says that the female plants 



c c 2 



