Ochsenheimeria mediopectinellus (Haw.) p44. Two previous recent records. VC18. 67 Grays Chalk Quarry, one reared 6 July 1981; 78 Benfleet, several adults 26 Aug. 1982 (AME). Bedellia somnulentella (Zell.) p45. Two previous recent records. New square records, almost all made in 1981 which was a good year for the species, are as follows. VC18. 48, 57, 67, 69, 78, 88, 99, 90, 09, 00. VC19. 52, 12 (AME). Bucculatrix thoracella (Thunb.) p46. New to VC18. VC18. 38, 48 Wanstead Flats (Emmet, 1984a). VC19. 53 Saffron Walden; 61 Garnetts Wood; 93 Bures (AME). Bucculatrix demaryella (Dup.) p46. Third recent record. VC19. 13 Stour Wood, 1981 (AME). Parectopa ononidis (Zell.) Map. New to Essex. Resident, 1981-1984. Trifolium. Mainly coastal and southern; locally fairly common. VC18. 57 Purfleet; 67 *Grays Chalk Quarry, larvae 25 Sept. 1981; 78 Canvey Is.; 88 Leigh-on-Sea; 98 Havengore Is.; 99, 09 Foulness. VC19. 53 Saffron Walden, one at light 26 Aug 1983 (AME). Parornix finitimella (Zell.) p48. The recognition of the differences between the early stages of this species and P. torquillella (Zell.) (Emmet, 1982a) has made fuller recording possible; it is now recorded from 53 squares. Phyllonorycter corylifoliella (Hb.) f. betulae Zell. p50. First Essex record of this form. VC18. 48 East Ham, mines on Betula (Plant, 1984). Choreutis sehestediana (Fabr.) p54. First record since 1900. VC18. 70 Pheasanthouse Wood NR, common amongst Scutellaria minor, 23 Aug 1981 (AME). Argyresthia dilectella Zell. p56. New to VC18. VC18. 49 Bournebridge, reared from larvae on Chamaecyparis, 1983 (AME). Argyresthia ivella (Haw.) p56. New to VC19. VC19. 81 Wickham Bishops, 1978 (GCD). Yponomeuta evonymella (Linn.) p57. First record in VC19 since before 1903. Became widespread in the county especially in 1981 and 1982, possibly through immigration since the usual foodplant (Prunus padus) is scarce. New records from squares are as follows. VC18. 48 (CWP); 67 (DJLA); 09 (AME). VC19. 30 (CWP); 43, 53, 72, 73, 83, 92 (AME; Emmet, 1982b). 120