THE LEPIDOPTERA OF NORTH-EAST ESSEX 113 The Mallow (Larentia clavaria). From September 23 to October; five from Weeley. Shoulder Stripe (Earophila badiata). From March 18 to April; three from Halstead. Streamer (Anticlea derivata). From April 27 to May; two from Halstead. Beautiful Carpet (Mesoleuca albicilliata). One from Weeley on July 23. Small Rivulet (Perizoma affinitata). From July 21 to August; two from Weeley. Sandy Carpet (Perizoma flavofasciata). One from Weeley on June 21. Yellow Shell (Euphyia cuculata). From June 20 to August; very common at Bures Hamlet, Colchester, Little Clacton and Weeley. Water Carpet (Lampropteryx suffumata). From April 23 to May; three from Halstead and Weeley. Broken-barred Carpet (Electrophaes corylata). From May 26 on- wards; two from Weeley. Dark Spinach (Pelurga comitata). From August 13 onwards; three from Colchester and Weeley. Small Phoenix (Ecliptoptera silaceata). One from Colchester in July. Spinach (Lygris mellinata). From June 29 to July; very com- mon at Colchester, Little Clacton and Weeley. Barred Yellow (Cidaria fulvata). From June 27 to July; eighteen from Little Clacton and Weeley. Blue-bordered Carpet (Plemyria rubiginata). From July 16 on- wards; one each from Colchester and Weeley. Common Marbled Carpet (Dysstroma truncata). From June 3 to October; common at Colchester and Weeley. This is a variable species and the types ab. rufescens (Yellow Marbled Carpet) and ab. perfuscata, (Brown Marbled Car- pet) were both common. July Highflyer (Hydriomena furcata). From July 12 to August; eight from Colchester and Weeley. Scarce Tissue (Rheumaptera cervinalis). From May 9 onwards; four from Weeley. The Streak (Chesias legetella). One from Weeley on October 16. Common Carpet (Epirrhoe alternata). From May 22 to Septem- ber; eleven from Weeley. The Fern (Horisme tersata). Two from Colchester in July. Toadflax or Foxglove Pug (Eupithecia linariata or E. pulchellata). We were unable to be certain of the species; seven from Colchester in July and August. Lime-speck Pug (Eupithecia centaureata). From May 31 to September; sixteen from Colchester and Weeley. Common Pug (Eupithecia vulgata). From May 31 to July; very common at Ardleigh, Colchester, Little Clacton and Weeley.