INSECTS PsELAPHID^ Pselaphus heisei, Herbst. Generally dis- tributed and not uncommon Tychus niger, Payk. Common and gener- ally distributed Bythinus bulbifer, Reich. Common in several localities. Chatham district, scarce — curtisii. Local. Chatham, Cobham, Birch Wood — securiger, Reich. Rare. Bromley (Saunders) — burrellii, Denny. Rare. Faversham, Bromley, Birch Wood Batrisus venustus, Reich. In or about ants' nests, chiefly Formica fuligi- nosa ; rare. Birch Wood Rybaxis sanguinea, L. Locally common Bryaxis waterhousei, Rye. Very local. Rochester (bank of Medway), Rain- ham, Strood, Sheerness, Whitstable — fossulata, Reich. Generally distributed — helferi, Schmidt. Salt marshes ; locally common. Gravesend, Chatham, Sheer- ness, Whitstable, Strood, Kingsgate, Folkestone — haematica, Reich. Local, but occa- sionally abundant ; more frequent about the banks of large rivers. Chatham — juncorum. Leach. Generally distri- buted — impressa, Panz. Not common. Lee, Eltham, Strood Trichonyx sulcicollis, Reich. Very rare. Cobham Park (J. J. W.), Lee (Douglas and Scott) Bibloporus bicolor, Denny. Under bark ; not common. Cobham Park, Bexley, Sevenoaks, Brasted, Bearsted Euplectus kunzei, Aube. In moss, dead leaves, etc. ; rare. Cobham Park, Sevenoaks, Greenhithe, Darenth Wood, Bearsted — duponti, Aub^. Very rare ; one speci- men under rotten beech bark in company with B. bicolor at Cobham Park (J. J. W.) — karsteni, Reich. In cut grass, hot beds, etc.; rare under loose bark. Cobham Park, Strood — signatus, Reich. In vegetable refuse, cut grass, etc. ; rarely under bark ; not uncommon in some localities, more scarce in others — nanus, Reich. In haystack and vege- table refuse, also under bark ; rare. Lee — sanguineus, Denny. As the preceding; not uncommon in some localities, PsELAPHlD^ {continued) scarce apparently in others, but prob- ably overlooked Euplectus piceus, Mots, (nigricans, Chaud.). Under bark ; very scarce in hotbeds ; not common. Darenth Wood, Cobham Park, St. Mary Cray, Hawkhurst, Maidstone — ambiguus, Reich. Many places at roots of grass, occasionally in haystacks ; local, but sometimes not uncommon where it occurs. Lee, Eltham, Sheer- ness, Bromley Tp.ichopterygid^ Ptinella aptera, Gu^r. Under bark of dead trees ; not uncommon. Cobham Park, Brasted Trichopteryx thoracica, Waltl. Rare. Lee — atomaria, De G. Not uncommon — anthracina, Matth. Rare. Chatham, Sheerness — grandicollis, Mannh. Not uncommon. Lee, Whitstable — lata. Mots. Common everywhere — cantiana, Matth. Rare. Tonbridge (Wollaston) — fascicularis, Herbst. Not uncommon. Lee — seminitens, Matth. Snodland, not un- common — attenuata. Gill. Rare. Snodland — sericans, Heer. Not common. Lee, Kingsgate — bovina. Mots. Not uncommon. Chat- ham, St. Mary Cray, etc. — edithia, Matth. Very rare. Tonbridge (Wollaston) — longula, Matth. Rare. Tonbridge — montandonii. All. „ „ — chevrolatii, All. „ „ Nephanes titan, Newm. Locally com- mon. Darenth JVood, Tonbridge, Kingsgate. Probably overlooked ; sometimes in profusion where it occurs Ptilium spencei, All. Locally common. Lee, Tonbridge — exaratum. All. Rare, Tonbridge — myrmecophillum. All. In nests of Formica rufa. Chislehurst — foveolatum. All. Locally abundant. Kingsgate Millidium trisulcatum. Local. Tonbridge Actidium coarctatum, Hal. Locally com- mon ; under seaweed on the coast, and also inland in hotbeds, etc. Sheerness (J. J. W.), Kingsgate, in profusion (T. Wood) ; formerly con- sidered extremely rare 143
