COMPOSITAE 673 



po-cltg. (H. M., Thuringia) ; 21. Prosopis nigrita F. t, in large numbers, skg. (H. M., 

 Bavarian Oberpfalz). D. Lepidoptera. Rhopalocera: 22. Colias hyale Z., skg. 

 (H. M., Thuringia). 



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

 Knuth (Kiel), 6 skg. and po-dvg. hover-flies — i. Eristalis sp.; 2. Melanostoma 



sp.; 3. Platycheirus podagratus Zeit., 4. Syrphus balteatus Deg. t; 5. S. ribesii Z. ; 



6. S. umbellatarum F. Alfken (Bremen), 4 bees — i. Eriades nigricornis Nyl. 5; 



2. Halictus calceatus Scop. t,\ 3. H. flavipes Pz. 5; 4. H. morio F. 5. Schenck 

 (Nassau), 4 bees — i. Anthidium punctatum Ltr.; 2. Halictus leucozonius Schr.; 



3. H. lucidulus Schenck; 4. H. sexnotatulus Nyl. (=H. quadrifasciatus Schenck). 

 Friese, the bee Panurgus banksianus K. : (Alsace), the bee Dasypoda plumipes Pz. 

 Loew (Brandenburg) (' Beitrage,' p. 39), a hover-fly (Eristalis sepulcralis Z.) and 

 3 bees (i. Dasypoda hirtipes /". S, skg.; 2. Halictus cylindricus /^. 5, do.; 3. H. 

 sexnotatus K. t, do.). 



1609. C. Endivia L. (Knuth, ' Bliitenbiol. Herbstbeob.')— The flower 

 mechanism of this species agrees with that of C. Intybus. The blue florets 

 develop to a great size and spread out their ligules to attract insects, while 

 the reproductive organs form a circle in the middle of the inflorescence. In 

 both species the ligules are about 2 cm. long and 6-7 mm. broad. In C. Endivia 

 the diameter of the head is 4-5 cm.; while in C. Intybus it is somewhat smaller 

 as a rule. The number of florets in an inflorescence is 20-30 in the former 

 species, 12-20 in the latter. 



Visitors. — Knuth observed a hover-fly (Eristalis sp.) and a butterfly (Pieris sp.). 



488. Thrincia Roth. 



1610. T. hirta Roth (=Leontodon hirtus L.). — 



Visitors. — Herm. MuUer gives the following list for Westphalia and the Bavarian 

 Oberpfalz ('Fertilisation,' pp. 358-9, ' Weit. Beob.,' Ill, p. 97). — 



A. Coleoptera. Buprestidae : I. Anthaxia quadripunctata Z., r'« «/«/(? on the 

 florets. B. Diptera. Syrphidae : 2. Eristalis arbustorum Z., freq., skg. and po-dvg. ; 

 3. E. sepulcralis Z., po-dvg. ; 4. E. tenax Z., freq., skg. and po-dvg. ; 5. Syrphus 

 balteatus Deg., do. C. Hymenoptera. {a) Apidae : 6. Andrena denticulata K. 5, 

 skg. and po-dvg. (Sid., Thiiringia) ; 7. A. fulvago Chr. $, po-cltg. (Thuringia) ; 8. 

 A. fulvescens Sm. 5, do. (Thuringia); 9. A. fulvicrus K. 5, po-cltg.; lo. Bombus 

 confusus Schenck J, skg.; 11. B. tristis Setdl. t, do. (Liebenau near Schwiebus) ; 

 12. Cilissa melanura Nyl. 5; 13. Dasypoda hirtipes F. S, skg. (Liebenau near 

 Schwiebus) ; 14. Dufourea vulgaris Schenck 5 and J, po-cltg. and skg. ; 15. Halictus 

 cylindricus F. 5 and J, do.; 16. H. flavipes F. S, skg.; 17. H. leucozonius &-Ar. 

 5 and $, very numerous, skg. and po-clfg. (Thuringia); 18. H. lugubris K. J, skg. ; 

 19. H. maculatus Sm. S, do.; 20. H. sexcinctus F. $, skg. and po-cltg.; 21. H. 

 smeathmanellus K. 5, po-cltg.; 22. H. villosulus K. 5, do.; 23. Panurgus calcaratus 

 Scop. J and S, freq., po-cltg. and skg. {b) Sphegidae : 24. Cerceris variabilis Schr. 5, 

 skg. D. Lepidoptera. (a) Noctuidae: 25. Plusia gamma Z., skg. (b) Rhopalocera : 

 26. Pieris napi Z., skg. 



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

 Alfken and Hoppner (Bremen), 10 bees — i. Bombus agrorum F.^; 2. B. areni- 



cola Ths. 5 ; 3- B. lapidarius Z. 5 ; 4- B. sylvarum Z. 5 ; 5- B. variabilis Schmiedehi. 



5; 6. Halictus calceatus Scop, j and S; 7. H. flavipes F. 5 and $; 8. H. leucozonius 



Schr. 5 and S; 9. H. rubicundus Chr. 5 and J; 10. H. zonulus Sm. 5 and J. 



MacLeod (Flanders), 2 humble-bees, 5 hover-flies, a Muscid, and 3 Lepidoptera 



(Bot. Jaarb. Dodonaea, Ghent, v, r893, pp. 428-9). 



