178 Millenial Status in Essex of Nationally Scarce and Threatened Species of Coleoptera Cercyon ustulatus (Preyssler) Cryptopleurum crenatum (Kugelann) Paracymus scutellaris (Rosenhaucr) Limnoxenus niger (Zschach) Anacaena bipustulata (Marsham) [Laccobius atratus (Rottenburg) Laccobius sinuatus Motschulsky Helochares lividus (Forster) Helochares punctatus Sharp Enochrus affinis (Thunberg) Enochrus bicolor (Fabricius) Enochrus halophilus (Bedel) Enochrus melanocephalus (Olivier) Enochrus ochropterus (Marsham) Enochrus quadripunctatus (Herbst) Chaetarthria seminulum (Herbst) Berosus affinis Brulle Berosus luridus (Linnaeus) Berosus signaticollis (Charpentier) Histeridae Plegaderus dissectus Erichson Abraeus granulum Erichson Gnathoncus buyssoni Auzat [Saprinus immundus (Gyllenhal) Hypocaccus rugifrons (Paykull) Baeckmanniolus maritimus (Stephens) Myrmetes piceus (Paykull) Hister bissexstriatus Fabricius Grammostethus marginatus (Erichson) Hydraenidae Ochthebius auriculatus Rey Ochthebius bicolon Germar Ochthebius marinus (Paykull) Ochthebius nanus Stephens Ochthebius punctatus Stephens Ochthebius viridis Peyron Hydraena nigrita Germar Hydraena testacea Curtis Limnebius nitidus (Marsham) Limnebius papposus Mulsant Ptiliidae Nossidium pilosellum (Marsham) Ptenidium gressneri Erichson Oligella foveolata (Allibert) Ptilium exaratum (Allibert) Euryptilium saxonicum (Gillmeisteri Ptinella denticollis (Fairmaire) Leiodidae Leiodes cinnamomea (Panzer) Leiodes oblonga (Erichson) Leiodes rugosa Stephens Agathidium marginatum Sturm Choleva glauca Britten Essex Naturalist (New Series) 17 (2000)