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A relict old forest beetle fauna from Powis Castle Park, Montgomeryshire PDF

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Preview A relict old forest beetle fauna from Powis Castle Park, Montgomeryshire

BR. J. ENT. NAT. HIST.,4: 1991 Table 1. The 38 species of macro-moth taken for the years 1989-91 in chronological order. Theearliestdateisgivenforeachspeciesineachyear. Adashindicatesthatthemothwasnot recorded during the period 1 January to 31 March. Species 1989 1990 1991 Peridroma saucia (Hiibn.) l.i Operophtera brumata (L.) Erannis defoliaria (CI.) Conistra ligula (Esp.) Agrotis ipsilon (Hufn.) Phlogophora meticulosa (L.) Conistra vaccinii (L.) Orthosia stabilis (D. & S.) Biston strataria (Hufn.) Xylocampa areola (Esp.) Orthosia gothica (L.) Selenia dentaria (F.) Apocheima pilosaria (D. & S.) Alsophila aescularia (D. & S.) Apocheima hispidaria (D. & S.) Agriopis leucophaeria (D. & S.) Gymnoscelis rufifasciata (Haw.) Theria primaria (Haw.) Agriopis marginaria (F.) Mythimna loreyi (Dup.) Eupsilia transversa (Hufn.) Orthosia cruda (D. & S.) Conistra rubiginea (D. & S.) Eupithecia abbreviata (Steph.) Macroglossum stellatarum (L.) Orthosia incerta (Hufn.) Orthosia munda (D. & S.) Colostygia multistrigaria (Haw.) Pachycnemia hippocastanaria (Hiibn.) Anticlea badiata (D. & S.) Autographa gamma (L.) Agrotis segetum (D. & S.) Scoliopteryx libatrix (L.) Dasypolia templi (Thunb.) Anticlea derivata (D. & S.) Lithophane socia (Hufn.) Pheosia gnoma (F.) Opisthograptis luteolata (L.) No. of species for the 3 months 21 25 24 — 132 BR. J. ENT. NAT. HIST.,4: 1991 under bark on an ancient oak, while dead specimens oftheDorcatoma were found amongst red-rot within a lying dead oak trunk. Other beetles found include: Ctesiasserra (F.), larvae plentiful under loose bark on oak trunks; Xestobium rufovillosum (Deg.), elytra under oak bark; Thymalus limbatus (F.), under oak bark; Cryptolestesferrugineus (Steph.), under oak bark; Pediacus dermestoides (F.), larvae under bark on recently split fallen oak boughs; Sinodendron cylindricum (L.), adult indead hawthorntimber; Bitomacrenata(F.), — under bark on oak logs a rare species in Wales; Triplaxaenea (Schall.), frequent onasoft fungusgrowingonalyingbeechtrunk; Leiopusnebulosus(L.), swept from bracken beneath oaks; Scolytus intricatus (Ratz.), in oak bark. Nine of these species are listed in Harding & Rose (1986) as associated with sites wheretherehasbeen longcontinuityofoldtrees andassociateddeadwood habitats. The park includes many ancient oaks and a scatter ofhawthorns within a matrix of bracken-invaded acidic grassland. MythankstoRogerKeyandtheNatureConservancyCouncilforarrangingaccessto — thisprivateestate. KeithN.A.Alexander,22CecilyHill,Cirencester,Glos.GL72EF. References Alexander, K. N. A. 1988. Dorcatoma chrysomelina Sturm (Coleoptera: Anobiidae) and XylophagusaterMeig. (Diptera: Xylophagidae) new to Pembrokeshire. Br. J. Ent. Nat. Hist. 1: 127. Harding, P.T.&Rose,F. 1986.Pasture-woodlandsinlowlandBritain. InstituteofTerrestrial Ecology, Huntingdon. Mendel, H. 1988. Provisionalatlasoftheclickbeetles(Coleoptera:Elateroidea)oftheBritish Isles. Biological Records Centre (N.E.R.C.). — Epuraea distincta (Grimmer) (Coleoptera: Nitidulidae) in North Somerset. Alexander (1991) reported this species from Devon and Cornwall in 1989, evidently new to south-west England. On 20.iv.1990 I took two specimens from a fungus, probablyDaedaleopsisconfragosa(Bolt, exFr.)Schroet., in woodlandattheStreet Heath reserve ofthe Somerset Trust for Nature Conservation (ST4639), this being thefirstrecord forSomerset. On6.V.1991 ItookanotheratShapwickHeathNational Nature Reserve (ST 4240) and on 8.v.1991 a further singleton from Catcott Heath STNCreserve(ST4040), bytappinghard fungigrowingonfallenbranchesinmature birch woodland. Associated on all three occasions were numerous Mycetophagus multipunctatusF. (Coleoptera: Mycetophagidae), which mayprovetobeanindicator species. As Epuraea distincta has now been found quite readily at these sites, and just from the one or two fungi that were examined on each visit, I have little doubt that this species is now firmly established and perhaps even abundant in the spring in birch woods on the Somerset peat moors. My thanks to A. A. Allen for confirming my first specimen. The Somerset Trust forNatureConservationandEnglishNature(formerlyNatureConservancyCouncil) are to be thanked for granting permission to study beetles on their reserves. A. G. Duff,4AmberleyClose, KeintonMandeville, Somerton, SomersetTA11 6EU. Reference Alexander, K. N. A. 1991. Epuraeadistincta (Grimmer) (Coleoptera: Nitidulidae) in Devon. Br. J. Ent. Nat. Hist. 4: 83.

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