LABIATAE 285 



Z. 5, do. ; 13. B. rajellus K. 5, do. ; 14. B. scrimshiranus K. $ and §> do., creeping 

 very far into the flowers; 15. B. sylvarum L. 5, do.; 16. B. terrester L. 5, skg. by 

 perforation; 17. Eucera longicornis Z. S, skg. ; 18. Halictus levigatus .A!". J, po-cltg. ; 

 19. Melecta armata Pz. 5, skg. ; 20. Xylocopa violacea Z. 5 and $, do. (Strasburg). 



Alfken records the following 2 1 bees, skg., for Bremen. — 



I. Anthidium manicatum Z. j; 2. Bombus agrorum F. 5 and §; 3- B. Areni- 

 cola T/^omj. 5; 4. B. derhamellus .S'. 5 ; 5. B. distinguendus TJ/or. 5, 5 skg. ; 6. B. 

 hortorum Z. 5", freq. and 5 J 7. B. hortorum Z., var. nigricans Schmiedekn. 5 ; 8. B. 

 jonellus K. 5; 9. B. lapidarius Z. 5 ; 10. B. lucorum Z. j ; 11. B. muscorum Z'. 5 

 and 5; 12. B. pratorum Z. 5 ; 13. B.ruderatus /^. 5 ; 14. B. sylvarum Z. 5, 5, and S ; 

 15. B. subterraneus Z. 5; 16. B. terrester Z. $, perforating even the flower-buds; 

 17. B. variabilis Schmiedekn. t>; 18. Osmia caerulescens Z. 5 and J; 19. O. rufa 

 L. 5 ; 20. Psithyrus barbutellus K.<i; 21. P. vestalis Fourcr. 5. 



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

 stated. — 



Knuth (Schleswig-Holstein), the honey-bee, as a nectar-thief, and 2 humble-bees 

 — Bombus lapidarius Z., skg., and B. terrester Z., as a nectar-thief. Herm. Mijller 

 (Alps), 6 humble-bees. Hoppner (Bremen), 2 bees — Andrena convexiuscula K. and 

 Bombus proteus Gerst. Schmiedeknecht (Thuringia), 5 bees — i. Bombus agrorum 

 F.^; 2. B. hortorum Z. 5 ; 3. B. hypnorum Z. 5; 4. B. jonellus A'. 5; 5. 

 Osmia aurulenta Pz. 5 and S. Friese (Thuringia), the humble-bee Bombus hortorum 

 Z. : (Baden and Alsace), the bee Podalirius acervorum Z. : (Hungary), the bee Halictus 

 xanthopus K. 5 and t>. Krieger (Leipzig), 5 bees — i. Anthidium manicatum Z. ; 

 2. Crocisa scutellaris F.; 3. Melecta armata /"z. (t=M. punctata K.); 4. Osmia 

 rufa Z. ; 5. Podalirius vulpinus Pz. Hofifer (Steiermark), 2 bees — Bombus agrorum 

 F. 5 and 5. and B. argillaceus Scop. 5. Schletterer (Tyrol), 5 bees — i. Bombus 

 argiliaceus Scop.; 2. B. hortorum Z. ; 3. B. variabilis Schmiedekn.; 4. Eriades 

 florisomnis Z. ; 5. Osmia xanthomelaena K. (= O. fuciformis Gerst). von Dalla 

 Torre (Tyrol), 2 humble bees — Bombus mesomelas Gersi., and B. muscorum F. 

 Loew (Brandenburg), 2 bees — Bombus hortorum Z. 5, skg. and po-cltg., and Osmia 

 bicornis Z. 5, skg. (' Beitrage,' p. 44) : (Switzerland), 2 bees — Anthophora sp. 5, skg., 

 and Bombus sylvarum Z. 5, do. (op. cit., p. 61): (Berlin Botanic Garden), 4 bees — 

 I. Anthidium manicatum Z. S and 5, skg.; 2. Apis mellifica Z. g, vainly skg., its 

 head and thorax dusted with pollen ; 3. Bombus pratorum Z. g, po-cltg. ; 4. B. 

 terrester Z. gi vainly skg. : and on the var. verticillaium the humble-bee Bombus 

 lapidarius Z. 5, po-cltg. MacLeod (Flanders), 6 humble-bees, and 2 hover-flies 

 (Bot. Jaarb. Dodonaea, Ghent, vi, 1894, p. 372). Scott-Elliot (Dumfriesshire), 

 3 humble-bees, and a hover-fly (' Flora of Dumfriesshire,' p. 140). 



2313. L. mactilatum L. (Herm. Miiller, ' Fenihsation,' pp. 496-7, 'Alpen- 

 blumen,' p. 311, ' Weit. Beob.,' iii, pp. 46-7; Kirchner, 'Flora v. Stuttgart,' p. 622; 

 Loew, ' Bliitenbiol. Floristik,' p. 391 ; Knuth, ' Bloemenbiol. Bijdragen.') — The flowers 

 of this species are purple-red in colour, a darker red and white patch on the lower lip 

 serving as a nectar-guide. Their mechanism agrees with that of L. album, but the 

 corolla-tube is 15-17 mm. long, so that a humble-bee which pushes its head 5 mm. 

 deep into the enlargement of the corolla-tube must have a proboscis 10-12 mm. long 

 in order to reach to the base of the flower. This species again is perforated by 

 Bombus terrester Z. 



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

 list. — 



A. Diptera. Syrphidae : i. Rhingia rostrata £., vainly trying to suck (H. M.). 

 B. Hymenoptera. Apidae : 2. Anthophora aestivahs Pz. j, freq., skg. and po-ckg. 

 (H. M., Thuringia); 3. A. pilipes F. 5 and S, skg. (H. M., Thuringia); 4. Apis 



