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 INSECTS Haliplus striatus, Shp. — lineatocollis, Marsh. Cnemidotus impressus, F. PELOBIIDiE Pelobius tardus, Hbst. Swardeston Com- mon, IVretham Heath, Momehold Heath DYTISCIDiE NOTERINA Noterus clavicornis, De G. — sparsus, Marsh. Laccophilina Laccophilus interruptus, Panz. — obscurus, Panz, Hydroporina Bidessus unistriatus, Schr. Hickling ; Waxham (Champion) — geminus, F. Brandon Hyphydrus ovatus, L. Coelambus versicolor, Schall. — injequalis, F. — decoratus, Gyll. Horning, Brandon ; Waxham (Champion) — confluens, F. Momehold Heath, Wey- bourne — parallelogrammus, Ahr. Cley, Mouse- hold Heath ; Waxham (Champion) — impressopunctatus, Sch. Brandon ; Waxham (Champion) Deronectes assimilis, Paylc. Colney ; Ayl- sham (Wood) ; Waxham (Champion) — depressus, F. — 1 2-pustulatus, F. Colney ; Stalham (Wood) ; Waxham (Champion) Hydroporus pictus, F. — granularis, L. Horning ; Waxham (Champion) — lepidus, Ol. — davisii, Curt. Harleston district (Fox) — halensis, F. Horning (Clark) ; Brundall (Sharp and Crotch) — dorsalis, F. — lineatus, F. — scalesianus, Steph. Norfolk (Scales fide Stephens) — neglectus, Schaum. Stratton Strawless, 1875 — umbrosus, Gyll. — angustatus, Sturm. — gyllenhali, Schiod. — vittula, Er. — palustris, L. — incognitis, Shp. Arminghall — erythrocephalus, L. — rujfifrons, Duft. Brandon Hydroporina {continued) Hydroporus memnonius, Nic. — obscurus, Sturm. St. Faiths ; Waxham (Champion) — nigrita, F. Brooke; Waxham (Cham- pion) — pubescens, Gyll. — planus, F. — lituratus, F. — ferrugineus, Steph. Horning — oblongus, Steph. Brandon ; Horning (Fowler) Dytiscina Agabus paludosus, F. Eaton Common ; Ayl- sham (Wood) — uliginosus, L. Horning, March 5> 1840 (Brown) ; Yarmouth (Paget) — unguicularis. Thorns. Brandon ; Horn- ing (Brown) ; Waxham (Champion) — didymus, Ol. Mousehold Heath (Thou- less) ; Aylsham (Wood) — congener, Payk. Norfolk (Stephens) — nebulosus, Forst. — conspersus, Marsh. Cley (Thouless) ; Waxham (Champion) — striolatus, Gyll. Horning, March, 1839 and 1840 (Brown); not re- corded as occurring elsewhere in Britain — femoralis, Payk. Wretham Heath — abbreviatus, F. Norfolk (Stephens) — sturmii, Gyll. — chalconotus, Panz. — bipustulatus, L. Platambus maculatus, L. Ilybius fuliginosus, F. — fenestratus, F. — ater, De G. — obscurus, Marsh. — guttiger, Gyll. Horning, St. Faiths — subaeneus, Er. Brandon, Wretham Heath ; St. Faiths (Thouless) — ^nescens, Thoms. St. Faiths Copelatus agilis, F. Rhantus grapei, Gyll. — exoletus, Forst. — pulverosus, Steph. — notatus. Berg. — bistriatus. Berg. — adspersus, F. Norfolk (Stephens) Colymbetes fuscus, L. Dytiscus punctulatus, F. — marginalis, L. — circumflexus, F. Yarmouth (Paget) ; Burgh Castle (Thouless) — dimidiatus, Berg. Yarmouth (Paget) Hydaticus transversalis, Berg. Lakenham, Sept. 13, 1898 Acilius sulcatus, L. 117