296 ANGIOSPERMAE—DICOTYLEDONES 



Visitors. — Herm. Miiller (H. M.) and Buddeberg (Budd.) give the following 



list. — 



A. Diptera. Syrphidae: i. Melithreptus taeniatus Mg., po-dvg-. (H. M.); 

 2. Rhingia rostrata Z., skg., and occasionally effecting pollination (H. M.). B. 

 Hymenoptera. Apidae : 3. Bombus agrorum Z'. 5, in large numbers, skg. (H. IM.) ; 

 4. B. sylvarum Z. 5, skg. legitimately (H. M.) ; 5. B. terrester Z. $, do. (H. M.) ; 

 6. B. tristis Sei'dl. 5, skg. (Budd.); 7. Saropoda bimaculata Pz., freq., skg. (Budd.). 

 C. Lepidoptera. (a) Rhopalocera: 8. Pieris brassicae Z., freq., skg. (H. M.); 

 9. P. rapae L., do. (H. M.). (V) Noctuidae: 10. Plusia gamma Z., freq., skg. 

 (H. M.). 



Alfken observed the following at Bremen. — 



A. Diptera. (a) Muscidae: i. Echinomyia tessellata F. {i) Syrphidae: 

 2. Rhingia rostrata Z. B. Hymenoptera. Apidae : 3. Anthidium manicatum 

 Z. 5 and t ; 4. Bombus agrorum F. 5, 5, and S ; 5. B. arenicola Ths. S ; 6. B. 

 distinguendus Mor. j and 5, skg. ; 7. B. hortorum Z. 5, skg. ; 8. B. lapidarius Z. 5 ; 

 9. B. lucorum Z. j; lo- B. pomorum Pz. J; 11. B. proteus Gerst. 5 and S; 

 12. B. ruderatus i^. J, skg. ; 13. B. sylvarum Z. 5 and S ; 14. Megachile ligniseca 

 K. 5; 15. Podahrius borealis Mor. 5 and S; 16. P. furcatus Z. 5 and S ; 17. P. 

 vulpinus Pz. 5 and S. 



Willis noticed the following in the neighbourhood of the S. coast of Scotland 

 ('Fls. and Insects in Gt. Britain,' Part I). — 



A. Coleoptera. Nitidulidae: i. Meligethes sp., freq., po-dvg. B. Diptera. 

 (a) Muscidae : 2. Anthomyia radicum Z., freq., po-dvg. (3) Syrphidae : 3. Mela- 

 nostoma scalare F., po-dvg; 4. Platycheirus albimanus F., freq., skg. and po-dvg. 

 C. Hemiptera. 5. Anthocoris sp. D. Hymenoptera. Apidae : 6. Anthidium 

 manicatum Z., skg. ; 7. Bombus agrorum Z"., very common, skg. ; 8. B. hortorum 

 Z., do. ; 9. B. terrester Z., do. 



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



Knuth (Rugen), the humble-bee Bombus agrorum F. 5, skg. : (Helgoland), 

 the bee Anthophora quadrimaculata Pz. i (Bot. Jaarb. Dodonaea, Ghent, viii, 1896, 

 p. 44) : (N. Frisian Is. and E. Holstein), 7 long-tongued bees, a true wasp, 5 Lepido- 

 ptera, and 4 hover-flies. Verhoeff (Norderney), a hover-fly (Syrphus corollae F., 

 po-dvg.), a humble-bee (Bombus hortorum Z. j, skg.), and a Noctuid moth (Plusia 

 gamma Z., skg.). Alfken (Juist), 4 humble-bees — i. Bombus hortorum Z. J, skg.; 

 2. B. muscorum F. 5, do.; 3. B. ruderatus F. 5, do.; 4. B. terrester Z. 5, do. 

 Friese (Mecklenburg), the bee Podalirius furcatus Pz. Schuiz, the humble-bee 

 Bombus terrester Z., skg. legitimately, and also as a nectar-thief. Hoffer (Steiermark), 

 the humble-bee Bombus rajellus K. Scott-Elliot (Dumfriesshire), 3 humble-bees, 

 one other long-tongued bee, 5 hover-flies, and a Muscid (' Flora of Dumfriesshire,' 

 P- 139)- 



2330. S. arvensis L. (Kirchner, ' Beitrage,' pp. 56-7.) — The small, incon- 

 spicuous pale-red flowers of this species possess a nectar-guide on the lower hp in 

 the form of dark spots, but there is little or no secretion of nectar. The individual 

 flowers of the verticillasters grow in an almost horizontal position, and usually open 

 one after another. The calyx is so deep that only the entrance of the corolla opens 

 between its teeth. The arched upper lip is 2 mm. long, and stretches straight out so 

 as at first to cover the anthers and stigma. The lower lip is 3 mm. long and 

 possesses a gutter-shaped median groove. The corolla-tube is about 4 mm. long. 

 At the beginning of anthesis, the anthers of the two inner stamens are twisted 

 towards each other at the upper ends of their filaments, and dehisce on the surfaces 



