Millenial Status in Essex of Nationally Scarce and Threatened Species of Coleoptera 177
Masoreus wetterhalii Gyllenhal
Lebia chlorocephala (Hoffmannsegg)
Demetrias imperialis (Germar)
Demetrias monostigma Samouelle
Dromius sigma (Rossi)
Haliplidae
Peltodytes caesus (Duftschmid)
Haliplus apicalis Thomson, C.G.
Haliplus heydeni Wehneke
Haliplus laminatus (Schaller)
Noteridae
Noterus crassicornis (Muller, O.F.)
Dytiscidae
Hydroglyphus geminus (Fabricius)
Hygrotus decoratus (Gyllenhal)
[Hygrotus quinquelineatus (Zetterstedt)
Coelambus parellelogrammus (Alliens)
Hydroporus longulus Mulsant
Hydroporus marginatus (Duftsehmid)
Hydroporus neglectus Schaum
Stictonectes lepidus (Olivier)
Graptodytes granularis (Linnaeus)
Scarodytes halensis (Fabricius)
Agabus biguttatus (Olivier)
Agabus chalconatus (Panzer)
Agabus conspersus (Marsham)
Agabus labiatus (Brahm)
Agabus uliginosus (Linnaeus)
Ilybius fenestratus (Fabricius)
Ilybius guttiger (Gyllenhal)
Ilybius subaeneus Erichson
Rhantus frontalis (Marsham)
Rhantus grapii (Gyllenhal)
Rhantus suturalis (Mackay)
Hydaticus seminiger (Degeer)
[Dytiscus circumcinctus Ahrcns
Dytiscus circumflexus Fabricius
Gyrinidae
Gyrinus minutus Fabricius
Gyrinus paykulli Ochs
Hydrophilidae
Hydrochus angustatus Germar
Helophorus alternans Gene
Helophorus dorsalis (Marsham)
Helophorus fulgidicollis Motschulsky
Helophorus griseus Herbst
Helophorus nanus Sturm
Helophorus strigifrons Thomson, C.G.
Cercyon atricapillus (Marsham)
Cercyon convexiusculus Stephens
Cercyon depressus Stephens
Cercyon lugubris (Olivier)
Cercyon sternalis Sharp
Cercyon tristis (Illiger)
Essex Naturalist (New Series) 17 (2000)