S. speciosa (Frey) Res.. 1974-1980. Acer pseudoplatanus. Wdspd but generally at low density. 78*Benfleet (AME). S. sorbi (Staint.) Res., 1977-1978. Sorbus aucuparia. V. loc. and rather r.; in the woods of central Essex only. VC 18.69 *Thorndon Park; 70 Woodham Walter Common (AME). S. plagicolella (Staint.) Res., (1903)-1980. Prunus spinosa. Wdspd and v.c. *"Common" (VCH). S. salicis (Staint.) Res., (1899)-1980. Salix caprea, S. cinerea. Wdspd and v.c. 81 *Wickham Bishops by WDC (Tutt, 1899:320). S. obliquella (Hein.) Res., 1975—1980. Salix fragilis and other smooth-leaved Salix. Wdspd but not very c. 53 *Wimbish (AME). S. auritella (Skala) Res., 1976-1980. Salix aurita. V. loc. and r. Mines have been observed with the characters of this species but until adults are reared and dissected the records must be regarded as provisional. VC 18. 70 *Lingwood Common. VC 19.11 Maldon Wood (AME). S. trimaculella (Haw.) Res., (1903)-1980. Populus nigra; P. x canadensis. Wdspd and v.c. 02 *Colchester, common (VCH). S. assimilella (Zell.) Res., 1967-1980. Populus tremula; P. alba. Loc. and usually rather r. VC 18. 48 Wanstead; 49 Hainault Forest; 70 Backwarden NR; Pheasanthouse Wood NR. VC 19.53 *Quendon; Rowney Wood; 81 Tiptree Heath; 82 Chalkney Wood (AME). 5. floslactella (Haw.) Res., (1899)-1980. Corylus; Carpinus, but seldom seen on the latter unless the former is present. Consequently it is relatively r. in some areas such as the south-west; elsewhere wdspd and c. 40 *Epping by Stainton (Tutt, 1899:326). 5. carpinella (Hein.) Res., 1976-1978. Carpinus. Loc. and r.; south-west only. VC 18. 48 Whitehouse Plain, mines apparently of this species (AME); *Chigwell Row, one at MV(IS). S. tityrella (Staint.) Res., (1903)-1980. Fagus. Wdspd and v.c. *"Common" (VCH). S. pomella (Vaugh.) Res., (1899)-1980. Malus, including cultivars. Loc. c. in well distributed colonies, i.e. its distribution is discontinuous. 48 *Wanstead by GE (Tutt, 1899:191). 31