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 INSECTS DYTisciDiE [continued) the mosses, as it is taken at Lindow and Delamere in Cheshire Hydroporus nigrita, F. Kirkdale — lituratus, F. Southport — obsoletus, Aub6. Recorded by Chap- pell from Chat Moss and from Northenden by Dr. Bailey Agabus bipustulatus, L. "l Everywhere — sturmii, SchrOn. J" abundant — guttatus, Payk. Common under stones in brooks — biguttatus, Ol. Ribble near Preston — paludosus, F. Bolton and near Manchester — unguicularis, L. One specimen, Birch Fields, Manchester — nebulosus, Forst. Southport ■ — chalconatus, Panz. Bo/ton and River Douglas near Preston Platambus maculatus, L. Generally dis- tributed in running water Ilybius fuliginosus, F. Common — ater. De G. „ — fenestratus, F. JVavertree near Liver- pool — obscurus. Marsh. Southport — guttiger, Gyll. Prestwich Colymbetes fuscus, L. Common generally Rhantus bistriatus. Berg. Prestwich — exoletus, Forst. Hightown near Formby Dytiscus marginalis, L. "| Recorded and — punctulatus, F. J fairly common Gyrinid^ Gyrinus bicolor, Payk. Near Southport — elongatus, Aub6. „ „ — marinus, Gyll. „ „ — natator, Scop. Abundant everywhere Orechtochilus villosus, Mull. TVinwick near Warrington, near Manchester CLAVICORNIA HyDROPHILIDjE Hydrocharis caraboides, L. A single speci- men captured at Southport when fly- ing at night Hydrobius fuscipes, L. Common ■ All occur more or less fre- quently Cymbiodyta ovalis, Thoms. Common Enochrus bicolor, Gyll. Near Liverpool, Formby Laccobius. All the four British species or forms occur near Southport and else- where Berosus afBnis, Brull^. Wavertree, Kirk- dale near Liverpool Limnebius truncatellus, Thoms. Common — nitidus, Marsh. Southport Philhydrus testaceus, F, — nigricans, Zett. — melanocephalus, Ol. — coarctatus, Gredl. HydrophilidjE {continued ) Anacoena. All our species occur Choetarthria seminulum, Herbst. Birkdale Helophorus tuberculatus, Gyll. This ex- ceedingly rare species was taken some years ago in the Manchester district by J. Chappell and named by E. C. Rye {E.M.M. October 1874) — aquaticus, L. Generally abundant — brevipalpis, Bedel. „ „ — nubilus, F, — intermedius, Muls. — dorsalis, Marsh. Muls. arvernicus, asnipenuis, Thoms. Recorded from the Southport dis- trict, but are not common Hydrochus angustatus. Germ. Southport ; rare Octhebius pygmasus, F. Common — bicolon, Germ. „ — marinus, Payk. One specimen. South- port — rufomarginatus, Steph. Recorded by T. Morley from Stretford near Man- chester in flood refuse Hydrcena riparia, Kug. Generally distri- buted — nigrita. Germ. 1 Fairy Glen, Appleby — gracilis. Germ. / Bridge All species of Cyclonotum and Sphsridium occur not uncommonly Cercyon. With the exceptionsof C. aquati- cus, Muls., C. depressus, Steph,, and C. minutus, Muls., the whole of our British species have been recorded. The two species also of Megaster- num and Cryptopleurumare abundant SiLPHIDiE Clambus. Our three British species have all been taken near Southport Agathidium nigripenne, Kug. Under bark, Agecroft, Manchester — marginatum, Sturm. Rare, Birkdale sandhills Liodes humeralis, Kug. Generally distri- buted — orbicularis, Herbst. One specimen in Lycoperdon. Prestwich near Man- chester Anisotoma dubia, Kug., is the only species at all common, but A. picea, 111., A. rugosa, Steph., A. furva, Er., A. ciliaris, Schm., and A. ovalis, Schm., all species generally considered rare or very rare, have been taken by Dr. Chaster and Mr. Sopp on the South- port coast, also by the former one specimen of A. punctulata, Gyll. Hydnobius punctatus, Sturm. Recorded by Archer (1864) from Hightown near Crosby "5