SCROPHULARINEAE 



189 



A. Diptera. {a) Musddae: i. Anthomyia sp., in large numbers, skg. (b) 

 Syrphidae: 2. Ascia podagrica /"., in large numbers, skg. ; 3. Syritta pipiens Z., do. ; 



4. Rhingia rostrata Z., skg. and po-dvg. ; usually drawing the stamens under it while 

 skg. B. Hymenoptera. {a) Apidae: 5. Anthophora retusa Z. (=A. haworthana 

 K^ J, skg. ; 6. Apis mellifica Z. 5, numerous, skg. ; 7. Bombus pratorum Z. : a small 



5, after skg. a single flower, always flew to another raceme ; 8. Chelostoma nigricorne 

 Nyl. S, skg. ; 9. Eucera longicornis Z. S, do. ; 10. Halictus malachurus A'. 5, po-cltg. ; 

 II. H. nitidus Schenck 5, po-cltg.; 12. H. smeathmanellus K. 5, skg.; 13. H. sex- 

 notatus K. 5, do. ; 14. H. sexstrigatus Schenck j, do. ; 15. H. zonulus Sm. 5, po-cltg. 

 and skg.; 16. Prosopis confusa iVy/. ; 17. P. hyalinata ^w. J, skg. ; 18. Psithyrus 

 quadricolor Lep. 5 ; hangs from below to a raceme, this being pulled down by its 

 weight, and creeps rather slowly from flower to flower, and then flies to another 

 raceme, {b) Sphegidae: 19. Cerceris variabilis Schr. 5 and S, in large numbers, skg. ; 

 20. Passaloecus gracilis Curl. ( = P. tenuis Mor) S, skg. 



Scott-Elliot observed 2 hover-flies and 5 Muscids in Dumfriesshire (' Flora of 

 Dumfriesshire,' p. 130). 



Fig. 294. Veronica latifolia, L. {after Herm. Miiller). A. Flower, seen directly from the front. 

 B. Do., after removal of half the calyx and corolla, seen from the side, a, anthers; ;/, nectary; ov, 

 ovary ; p^ petals ; s, sepals ; st^ stigma. 



2114. V. latifolia L. (=V. urticifolia /airy.). (Herm. Muller ' Alpenblumen,' 

 pp. 271-2; Schulz, 'Beitrage'; Knuth, ' Bloemenbiol. Bijdragen.') — The flower 

 mechanism of this species agrees essentially with that of V. Chamaedrys, but the 

 style is shorter, and there are no hairs in the corolla-tube to serve as nectar-covers. 



In flowers from the Botanic Garden of the Kiel Ober-Realschule I found the 

 mechanism was not nearly so complete as that of V. Chamaedrys. 



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

 stated. — 



Knuth (Kiel), the honey-bee, freq., and the hover-fly Syrphus ribesii Z., less 

 freq. The former only now and then grasped both stamens at the same time; it 

 usually seized the style and one stamen, generally effecting crossing and dusting 

 itself afresh with pollen. Sometimes it settled on two corolla-lobes, and in that case 

 often pushed away the style and one stamen, thus failing to effect pollination, and 

 obtaining the nectar without making any return. Schulz (South Tyrol) flies and 

 small bees. 



