COMPOSITAE 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 : i. Coccinella bipunctata Z. ; 2. C. quinque- 

 punctata L. B, Diptera. (a) Muscidae : 3. Sarcophaga carnaria Z. (3) Stratio- 

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

 freq., po-dvg.; 6. E. nemorum Z., do.; 7. Melithreptus taeniatus il/^., 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. 5, po-cltg. ; 12. A. fulvicrus K. $, skg.; 

 13. Apis mellifica Z. 5, do. ; 14. CoUetes daviesanus K. t> and 5, extraordinarily freq., 

 skg. and po-cltg. ; 1 5. C. fodiens K. S and 5, very common, skg. and po-cltg. ; 

 16. Halictus maculatus Sm. S and j, do.; 17. Sphecodes gibbus Z. S and 5, 

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

 (i) Sphegidae: 18. Crabro sp. ; 19. Dinetus pictus F. 5 and S, in large numbers; 

 20. Mellinus arvensis Z. {c) Vespidae: 21. Odynerus parietum Z. S. E. Lepido- 

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

 didyma Esp. S, skg. (c) Rhopalocera : 24. Polyommatus dorilis I(/h., 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 ('Bl. u. Insekt. a. d. nordfr. Ins.,' pp. 158-9). 

 Wiistnei (Alsen), 4 bees (i. Collates daviesanus A'.; 2. Halictus albipes Fdr.; 



3. H. morio Fir. ; 4. H. nitidiusculus A".). Friese (Mecklenburg), 5 bees (i. CoUetes 

 daviesanus A'., very common; 2. C. fodiens A"., freq.; 3. C. marg^natus Sm., rare; 



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

 the bee CoUetes daviesanus A'. Alfken (Juist), a Muscid (Lucilia caesar Z.), a Capsid 

 (Calocoris norvegicus Gmel., very common, skg.), and a bee (CoUetes daviesanus A'. 



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

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

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



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

 Z., freq. B. Hymenoptera. (a) Apidae: 4. Bombus derhameUus AT. 5 ; 5. B. 

 muscorum F. 5 ; 6. B. terrester Z. S, skg. ; 7. CoUetes daviesanus K. 5 very common, 

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

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

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

 II. Eriades nigricomis Nyl. 5, rare; 12. E. truncorum Z. 5 and S, freq.; 

 13. Halictus rubicundus Chr. 5, rare; 14. MeUtta leporina Pz. S; 15. Psithyrus 

 barbutellus A'. 5 ; 16. Stelis breviuscula Nyl. 5 and S, freq. {b) Sphegidae: 

 I'j. Ammophila affinis K. 5, not infrequent, skg.; 18. Diodontus tristis v. d. L. 5. 



(c) Tenthredinidae : 19. Athalia glabricoUis Ths.; 20. A. spinarum F.; 21. Dolerus 

 pratensis Fall. Schenck (Nassau), the following bees — i. CoUetes fodiens A'.; 



2. Halictus minutulus Schenck; 3. H. nitidiusculus A". ; 4. H. pauxillus .yf^^wfX' 5 ; 

 5. Nomada rhenana Mor.; 6. N. ruficomis Z.; 7. Prosopis bipunctata F.; 

 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 L. $ and 5, by 

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

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



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

 elongatula Lw., and undetermined hemipterous larvae. 



