442 



ANGIOSPERMAEDICOTYLEDONES 





(c) Syrphidae : 5. Syrphus ribesii Z., po-dvg. (H. M.). C. Hymenoptera. (a) 

 Apidae: 6. Apis mellifica Z. jjf, exceedingly common, skg. and po-cltg. (H. M.); 

 7. Bombus agrorum F. 5, 5 an d S, very common, skg. (H. M.) ; 8. B. confusus 

 Schenck 5, freq., skg. (H. M.) ; 9. B. lapidarius Z. j and 5, do. (H. M.) ; 10. B. 

 pratorum Z. 5, $f and 5, do. (H. M.); 11. B. terrester Z. $>, and S, do. (H. M); 

 12. Halictus flavipes F. 5, skg. (Budd.); 13. H. malachurus K. $>, do. (Budd.); 

 14. H. nitidus Schenck $, do. (Budd.); 15. Megachile versicolor Sm. j, do. (H. M., 

 Thuringia) ; 16. Nomada jacobaeae Pz. $ (H. M.); 17. N. roberjeotiana Pz. 5, skg. 

 (H. M.); 18. Psithyrus campestris Pz. t, skg. (H. M.); 19. Sphecodes gibbus Z. $, 

 do. (H. M.). (b) Sphegidae : 20. Ammophila sabulosa Z., skg. (H. M.); 21. Cerceris 

 labiata F., do. (H. M.) ; 22. Crabro alatus Pz., do. (H. M.) ; 23. C. cribrarius Z. 5, do. 

 (H. M.). (c) Tenthredinidae : 24. Allantus scrophulariae Z., skg. (H. M.). D. Lepi- 

 doptera. 25. Ino statices Z., do. (H. M.); 26. Zyganea filipendulae Z. do. (H. M.). 



Loew observed the following. 



(a) In the Berlin Botanic Garden, the bees 1. Apis mellifica Z. 5. skg.; 2, 

 Bombus rajellus K. 5, do. ; 3. Chelostoma nigricorne Nyl. $, do. (6) In the Riesen- 

 gebirge, the humble-bee Bombus agrorum F. 5, skg. (c) In Silesia, the butterfly 

 Hesperia comma Z. 



KlG. 149. Epilobium FieiscJteri, Hochst. (after Herm. Mailer). A. Young protandrous flower seen 

 directly from the front ( x 24). B. Middle of the same ( 7). C. A homogamous flower, after removal 

 of a sepal and two petals (x 2$). D. Style of a protogynous flower, in which an anther is begin- 



ning to dehisce (x 7). E. Style of a flower, on the anthers of which a small quantity of pollen still 

 remains ( x 7). a, anther ; Ji % filament ; j^r, style ; sd, nectar-cover ; st. stigma. 



The following were observed by the authorities, and in the localities stated. 

 Alfken (Bremen) the bees i. Bombus agrorum F.; 2. B. arenicola Ths.\ 

 3. B. derhamellus K. ; 4. B. distinguendus Mor. ; 5. B. jonellus K. ; 6. B. lapidarius 

 Z. ; 7. B. proteus Gerst. 5; 8. B. terrester Z. ; 9. Halictus calceatus Scop. 5; 10. 

 Macropis labiata F. $ and J; 11. Megachile centuncularis Z. J; 12. Podalirius 

 furcatus Pz. J. Verhoeff (Norderney) the Capsid Calocoris chenopodii Fall. 5 and $. 

 Krieger (Leipzig) the bees 1. Bombus agrorum F. $; 2. Eriades nigricornis Nyl.) 

 3. Halictus smeathmanellus K. ; 4. Prosopis confusa Nyl. Hoffer (Steiermark) the 

 bees i. Bombus distinguendus Mor. J ; 2. B. hypnorum Z. 5 ; 3- Psithyrus vestalis 

 Fourcr. J. Redtenbacher (Vienna) the Chrysomelid Adoxus obscurus Z. Schmiede- 

 knecht the bees 1. Andrena fumipennis Schmiedekn. ; 2. Bombus distinguendus 



