Zoology. 427 



Volucella bombylans, L. Thames Marshes. 

 Volucella pellucens, L. Eltham, Bexley. 



Eristalis sepulchralis, L. Eltham, Thames Marshes ; common in 

 the Marshes. 



Eristalis tenax, L. Generally distributed ; common. 



Eristalis intricarius, L. Welling. 



Eristalis intricarius, var. furvus, Verr. Thames Marshes. 



Eristalis arbustorum, L. Generally distributed ; common. 



Eristalis pertinax, Scop. Generally distributed ; common. 



Eristalis horticola, Deg. Bexley. 



Myiatropa florea, L. Bexley, Farningham. 



Helophilus trivittatus, F. New Eltham, Thames Marshes. 



Helophilus hybridus, Lw. Thames Marshes, Welling. 



Helophilus lunulatus, Mg. Plumstead Marshes (Beaumont.). 



Helophilus transfugus, L. Charlton (Verrall.). 



Helophilus vittatus, Mg. Thames Marshes. 



Merodon equestris, F. Eltham. 



Tropidia scita, Harr. Thames Marshes. 



Criorrhina berberina, F. Bexley. 



Criorrhina oxyacanthae, Mg. Bexley, Chislehurst. 



Criorrhina floccosa, Mg. Eltham. 



Criorrhina asilica, Fin. Chislehurst. 



Xylota segnis, L. Bexley, Farningham. 



Syritta pipiens, L. Generally distributed ; common. 



Eumerus strigatus, Fin. Abbey Wood, Lee (Verrall.). 



Chrysochlamys cuprea, Scop. Welling, Sidcup. 



Chrysotoxum cautum, Harr. Eltham, Welling. 



Chrysotoxum octomaculatum, Curt. Eltham, Bexley. 



Chrysotoxum festivum, L. Bexley. 



CONOPID^E. 



Sicus ferruginous, L. Bexley. 

 Myopa buccata, L. Chelsfield. 

 Myopa testacea, L. Farningham. 



TACHINIDJE. 



Thelaira leucozona, Pz. Thames Marshes. 

 Oliviera lateralis, F. Generally distributed. 



