C0MP0S1TAE 623 



stigmatic papillae, diverge in such a way as to stand at the same level as that 

 previously occupied by the pollen masses. 



Visitors. Herm. Muller gives the following list. 



A. Coleoptera. Coccinellidae : 1. Coccinella bipunctata Z. ; 2. C. quinque- 

 punctata Z. B. Diptera. (a) Muscidae : 3. Sarcophaga carnaria Z. {&) Stratio- 

 myidae : 4. Odontomyia viridula F., freq. (c) Syrphidae : 5. Eristalis arbustorum Z., 

 freq., po-dvg. ; 6. E. nemorum Z., do.; 7. Melithreptus taeniatus Mg., po-dvg. ; 

 8. Syritta pipiens Z., very numerous, skg. and po-dvg.; 9. Syrphus ribesii Z., 

 freq., po-dvg. C. Hemiptera. 10. Several sp. of bugs. D. Hymenoptera. 



(a) Apidae: 11. Andrena denticulata K. $, po-cltg. ; 12. A. fulvicrus K. $, skg.; 

 13. Apis mellifica Z. Ijj, do. ; 14. Colletes daviesanus K. J and 5, extraordinarily freq., 

 skg. and po-cltg.; 15. C. fodiens K. & and 5, very common, skg. and po-cltg.; 



16. Halictus maculatus Sm. $ and 5, do. ; 17. Sphecodes gibbus Z. $ and <j>, 

 different varieties (including ephippius Z.), skg., and dusting itself with pollen. 



(b) Sphegidae: 18. Crabro sp. ; 19. Dinetus pictus F. $> and 5, in large numbers; 

 20. Mellinus arvensis Z. (c) Vespidae: 21. Odynerus parietum Z. J. E. Lepido- 

 ptera. (a) Pyralidae: 22. Botys purpuralis Z., skg. (b) Noctuidae: 23. Hadena 

 didyma Esp. $>, skg. (c) Rhopalocera : 24. Polyommatus dorilis Hfn., skg. ; 25. P. 

 phlaeas Z., skg.; 26. Vanessa atalanta Z., skg. F. Neuroptera. 27. Panorpa 

 communis Z., freq. 



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



Knuth, Apis, 2 humble-bees, a short-tongued bee, a Tenthredinid, 3 Lepidoptera, 



5 hover-flies, 6 Muscidae, and a beetle ( C B1. u. Insekt. a. d. nordfr. Ins.,' pp. 158-9). 

 Wustnei (Alsen), 4 bees (1. Colletes daviesanus K. ; 2. Halictus albipes Fbr. ; 



3. H. morio Fbr. ; 4. H. nitidiusculus K.). Friese (Mecklenburg), 5 bees (1. Colletes 

 daviesanus K., very common; 2. C. fodiens K., freq.; 3. C. marginatus Sm., rare; 



4. Epeolus productus Ths., not infrequent ; 5. E. variegatus Z.) : also (Thuringia) 

 the bee Colletes daviesanus K. Alfken (Juist), a Muscid (Lucilia caesar Z.), a Capsid 

 (Calocoris norvegicus Gmel., very common, skg.), and a bee (Colletes daviesanus K. 



5. occasional. Sickmann (Osnabriick), 3 Sphegids (1. Ceropales maculatus F., 

 occasional ; 2. Dioretus pictus F., freq. ; 3. Mellinus sabulosus F., freq. Alfken 

 (Bremen). A. Diptera. (a) Muscidae: 1. Gymnosoma rotundata Z., rare. 

 (b) Syrphidae: 2. Eristalis anthophorinus Zett., very rare; 3. Melanostoma mellina 

 Z., freq. B. Hymenoptera. (a) Apidae : 4. Bombus derhamellus K. 5 ; 5- B. 

 muscorum F. 5 ; 6. B. terrester Z. J, skg. ; 7. Colletes daviesanus K. $ very common, 

 skg. and po-cltg., $ very common, skg. (this is the most frequent visitor among the 

 bees) ; 8. C. fodiens K., freq., 5 skg. and po-cltg., J skg. ; 9. C. picistigma Ths., 

 rare, 5 skg. and po-cltg., S skg.; 10. Epeolus variegatus Z. $ and $, freq., skg. ; 

 11. Eriades nigricornis Nyl. 5, rare; 12. E. truncorum Z. 5 and J, freq.; 

 13. Halictus rubicundus Chr. 5, rare; 14. Melitta leporina Pz. J; 15. Psithyrus 

 barbutellus K. 5; 16. Stelis breviuscula Nyl. 5 and J, freq. (b) Sphegidae: 



17. Ammophila affinis K. $, not infrequent, skg.; 18. Diodontus tristis v. d. L. 5. 

 {c) Tenlhredinidae : 19. Athalia glabricollis Ths. ; 20. A. spinarumZ 1 . ; 21. Dolerus 

 pratensis Fall. Schenck (Nassau), the following bees 1. Colletes fodiens K. ; 



2. Halictus minutulus Schenck; 3. H. nitidiusculus K.; 4. H. pauxillus Schenck S; 

 5. Nomada rhenana Mor.) 6. N. ruficornis Z.; 7. Prosopis bipunctata Z^. ; 

 8. P. nigrita F. MacLeod (Flanders), Apis, 4 short-tongued bees, 4 hover-flies, 



6 Muscids, and a Lepidopterid (Bot. Jaarb. Dodonaea, Ghent, v, 1893, pp. 426-7): 

 also a Muscid, a Vespid, and a beetle (op. cit., vi, 1894, p. 374). Schneider (on 

 imported plants in Arctic Norway), the humble-bee Bombus terrester Z. J and 5, by 

 the hundred (1890), also B. lapponicus Z. and B. scrimshiranus K. (Tromse Mus. 

 Aarsh., 1894). Smith (England), 3 bees (1. Colletes daviesanus K. ; 2. C. fodiens K. ; 



3. Epeolus variegatus Z.). Loew (Berlin Botanic Garden), the Muscid Tephritis 

 elongatula Lw., and undetermined hemipterous larvae. 



