138 



FERTILIZATION OF SPEING FLOWEES ON THE 

 YOEKSHIEE COAST. 



By I. H. BuRKiLL, M.A., F.L.S. 



(Continued from p. 99.) 



Class V. (B.) Flowers with honey completely concealed. 



Prunus communis Huds. — ^Hl. : Apis mellifica L., sh. and cp. ; 

 Bombus terrestris L., sh. Dm.: Volucella bombylans L., sh. ; 

 Eristalis pertinax Scop., sh. ; E. arbustorum L., sh. Ds. : Calli- 

 phora erythrocephala Mg., sh. ; Pollenia rudis F., sh., abundant; 

 Lacilia coruiciua F. ; Stomoxys sp. ?, sh. ; Scatophaga stercoraria 

 L., sh., abundant; Phora sp. ?; Sepsis nigripes Mg., fp. All ob- 

 served in '96. 



Veiunica ar/restis L. — No visitors. 



Veronica peisica Poir. — Hm. : Andrena gwynana K., $ , '95 ; A. 

 clarkella K., <? , '95. L. : Vanessa urticse L., '95. Ds. : Luciha 

 cornicina F., '95; Phora sp., '95, '96; Sepsis nigripes Mg., '95. 

 All at honey. 



Veronica arvensis L.— No visitors. 



-•"Veronica hederifolia L. — Hm. : Andrena gwynana K., ?. 

 Hs. : Formica fusca L., 2 spp. of ichneumons. Ds.[: Sepsis nigripes 

 Mg= C.: Apion nigritarse K. Hem.: 1 sp. T. : Thrips sp. All 

 sh., '95. 



[Geranium Pmhertianum L. — No visitors. Competing garden 

 s^&ciQs:—Helleborus viridis L. — HI. : Bombus terrestris L., sh., '96. 

 Cheiranthus Clieiri L. — HI. : Bombus terrestris L., sh., '96. Arahis 

 caucasica Willd. — Dm. : Eristalis pertinax Scop., sh., a frequent 

 visitor. Ribes sani/uineuni Pursh. — HI. : Bombus terrestris L., '96.] 



Class VI. (B'.) Aggregatedflowerswithhoney completely concealed. 



*Bellis perennis L. — HI. : Bombus terrestris L., '95. Hm. : 

 Andrena gwynana K., $ , '95 ; A. clarkella K., <? , sh., '95. Hs. : 

 an ichneumon, '95. L. : Pieris rapte L., sh., '95 ; Vanessa urtica? 

 L., sh., '95. Dm. : Eristalis pertinax Scop., fp., '95, '96 ; Syrphus 

 lasiophthalmus Ztt., '95; Melanostoma quadrimaculatum Verrall, 

 '95. Ds. : Calliphora cognata Mg,, sh. and fp., '96 ; Lucilia 

 cornicina F., sh. and fp., '95, '96, abundant; Pollenia rudis F., '95, 

 '96; Scatopliaga stercoraria L., sh. and fp., '95, '96, particularly 

 abundant in the latter year; Helomyza sp., '95; Dilophus albi- 

 pennis Mg., '96 ; Sepsis nigripes Mg., fp,, '95, '96 ; Ephydrid, '95. 

 C. : Meligethes sp., '95; Apion striatum K,, '95, Araneida : 

 Xysticus pini Hahn, lying in wait, '95, 



TussiLAGo Farfara L, — HI. : Apis mellifica L., sh. and cp,, '95 ; 

 Bombus terrestris L,,sh,, '95, '96; B,agrorumF,,sh,,'95, '96, Hm. : 

 Andrena clarkella K., <? and ? , sh,, '95; A, gwynana K., <? and $ , 

 sh,, '95 ; A, nigroaenea K., <? and ? , '95. Hs, : Formica fusca L., 

 '95 ; 2 spp. of ichneumon, sh,, '95, '96. L, : Vanessa urticas L., 

 sh., '95. Dm.: Eristalis pertinax Scop., sh. and fp., '95, '96; 



