98 FERTILIZATION OF SPRING FLOWERS ON THE YORKSHIRE COAST. 



'95; Scaptomyza graminum Fin. ?, '96 ; and 3 other small flies, '96. 

 C. : Tachyporus hvpnonim F., '96. To ? catkins: — Ds. : Mnscid., 

 1 sp., '96; Scatophaga stercoraria L.. '96. 



[Anthriscus sijlvf'stris Hofl'm. — • Ds. : Sepsis uigripes Mg., sli., '96. 

 Heracleum SphondijlUun L. and Galium Cruciata Scop. No visitors.] 



Class IV. (AB.) Flowers with half-hidden honey. 



Ranunculus Ficaeia L. — HI. : Apis mellifica L., cp. and sh., 

 once, '95; Bombus agrorum F., sh., once, '96. Hm. : Andrena 

 gwynana K., S and ? , sh., occasional, '95, '96 ; A. clarkella K., sh., 

 '96; A. nigroaenea K., ? , '95. Hs. : Formica fusca L., '95 ; an 

 ichneumon, sh., '95. L. : Vanessa uiticfe L., sh., '95, '96. Dm. : 

 Eristalis pertinax Scop., sh. and fp., frequent, '95, '96; E. arbus- 

 torum, sh., once, '96; Chilosia nebulosa Verrall, '95, '96; Syrphus 

 lasiophthalmus Ztt., sh., '95 ; Melanostoma quadrimaculatum Ver- 

 rall, 3 and ? , sh., '95 ; Empis sp., sh., once, '96. Ds. : Calliphora 

 cognata Mg., sh., once, '96; Lucilia cornicina F., sh. and fp., 

 '95, '96 ; Pollenia rudis F., once, '95; Scatophaga stercoraria L., 

 sh. and fp., '95, and abundantly visiting in '96 ; Phora sp. ?, 

 '96; Sepsis uigripes Mg., fp. and sh., occasional, '95, '96. C. : 

 Meligethes picipes Sturm, sh., abundant, '96 ; Coninomus nodifer 

 Westw., '95; Thyamis fuscicollis Foudr., '95. T. : Thrips sp., '96. 

 '•'Caltha palustris L. — HI.: Apis mellifica L., cp., once, '96. 

 Dm. : Syrphus sp., fp., once, '96. Ds. : Scatophaga stercoraria L., 

 sh. with difficulty, '96. C. : Meligethes picipes Sturm, sh., once, 

 '96. Hem. : Derteocoris sp. ?, puncturing base of the flower, '95. 



L'ardamine hirsuta L. — No visitors seen. 



ErophUa vuhjdvia DC. — Ds. : one tiny fly seen twice sh., '94. 

 No visitors seen in '95, '96. 



'■'CocHLEARiA OFFICINALIS L. — Hs. : oue sp. of ichneumou sh., 

 '95, '96. Ds. : Scatophaga stercoraria L., sh. and fp., '95, '96; 

 Hylemyia sp. ?, sh., '95; Coelopa sp., sh., '96 ; Scaptomyza grami- 

 num Flu., sh., '95 ; Sepsis uigripes Mg., sh., '95, '96 ; and another 

 fly, '95, '96. C. : Meligethes picipes Sturm, sh., '96. 



Sisi/»ibrki))i, Tludiana Hook. — No visitors seen. 



Capsella Bursa-pastoris Moench. — No visitors seen, though 

 constantly under observation. 



Stellaeia media Cyr. — Hs. : Pezomachus sp., '95. Ds. : Lu- 

 cilia cornicina F., '95 ; Scatophaga stercoraria L., '95, '96; Phorbia 

 muscaria Mg., '95 ; Phora sp., '95 ; Sepsis uigripes Mg., '95 ; 

 Scatopse notata L., '95. T. : Thrips sp. All sh. 



Cerastium trlviaJe Link. — Ds. : Helomyza sp., '95; Phora sp., 

 sh., '96. T. : Thrips sp., sh., '96. 



'•■PoTENTiLLA Fragaeiastrum Ehi'h. — Hm. : Andrena gwynana K., 

 (J sh., ? cp.,'95, '96; A. clarkella K., ^ and ? , '95. Hs. : Formica 

 fusca L., sh., '95 ; 8 small sp. of ichneumon sh., '95. Ds. : Siphona 

 geuiculata Deg., sh., '96; Calliphora cognata Mg., sh., '96; 

 Luciha cornicina F., sh., '95, '96; Phora sp., '95; Coelopa sp., fp., 

 '95; Sepsis uigripes Mg., sh., '95, '96; and another sp., '95. 

 C: Apion nigritarse K., sh., '95. T. : Thrips sp., sh., '95, '96. 

 [Stellaria Hulodea L. — Ds. : Sepsis uigripes Mg., '96. Oxalis 



