Beetle News Vol. 1:4 December2009 ISSN 2040-6177 Beetle News
Beetle News Vol. 1:4 December2009ISSN 2040-6177Beetle NewsCirculation: An informal email newsletter circulated periodically to those interested in British beetlesCopyright: Text & drawings 2009 Authors Photographs 2009 PhotographersCitation: Beetle News 1:4, December 2009Editor: Richard Wright, 70, Norman road, Rugby, CV21 1DN Email:richardwrightuk@yahoo.co.ukContentsEditorial - Richard WrightSome Beetle Species New to Warwickshire in 2009 - Steve LaneOn the food plants of Gymnetron villosulum - Eric PhilpSome Scottish ladybird records - Jony Denton & Scotty DoddAdditional records of Diaperis boleti (Tenebrionidae) from Surrey [VC17] during 2009 - Scotty DoddReview - Guides to British Beetles - Richard WrightNew Shropshire Beetle Recording Group - Pete BoardmanCheap and simple materials for pitfall traps - Richard WrightBeginners’ Guide : The species of Glischrochilus (Nitidulidae) - Richard WrightEditorialRichard WrightWelcome to the fourth issue of Beetle News. This is thefinal issue for 2009, albeit slightly late, and represents thecompletion of the first year of publication.On the whole, the first year appears to have beensuccessful. I have managed to produce four issues andthere has been enough content to make this worthwhile.However, continuation of Beetle News depends onsufficient content being submitted. It has so far beendependent on a relatively small number of contributors,some of whom have produced several articles. For thisissue, I have had to provide a large proportion of thecontent myself. For Beetle News to continue in the longterm, it will require a larger number of contributors.I would also appreciate any more feedback, positive ornegative. So far the few comments I have received have allbeen positive! If you have any suggestions as to howBeetle News could be improved, please let me know. Iwould also be particularly interested to hear from anyrelative beginners to beeetles and what they would finduseful. I hope that the inclusion of Beetle News on theAmateur Entonologists’ Society website has made itavailable to a wider selection of entomologists and I wouldagain like to thank the AES for this service.Finally, the snow is disappearing, at least for the timebeing, so may I wish everyone good beetling for 2010.1Silpha carinataIn the guide to British Silphidae in BeetleNews 1:3, I pointed out that I did not have aspecimen of Silpha carinata to photograph.Many thanks to David Nash for supplying aphotograph of this species which is shownabove.122233345
Beetle News Vol. 1:4 December2009ISSN 2040-6177Some Beetle Species New to Warwickshire in 2009 grassland at Brandon Marsh NR (SP3875) on 8th August.The absence of the foodplant Malva in the immediate areasuggests that it may have been a dispersing individual.Not altogether unexpected was the first recordedoccurrence of Panagaeus bipustulatus (Fabricius) inVice-county 38. The exact details of the location have yetto be received by the author, but the record concerns asingle specimen pitfall-trapped by Robin Cure in July ona grassland road verge close to the Worcestershireborder.Steve LaneThe ladybird Rhyzobius chrysomeloides (Herbst) isanother expected coloniser in Warwickshire, so I was notentirely surprised when I beat three specimens out ofScot's Pine at the edge of a sandy track at the approach tofarm buildings near Lime Bridge (SP0652) on 5thOctober. I dissected a male specimen to be certain of theidentification, although even in the field, the dark markson the elytra immediately set them apart from typical R.litura (Fabricius) and the elytral puncturation and thoraciccharacters mentioned by various authors are easy toappreciate under magnification.PanagaeusbipustulatusA third species worthy of note is Podagrica fuscicornis(Linnaeus). I swept a solitary specimen of this beetle inWith my own observations I have only ever found thisbeetle on Veronica catenata and never on V. anagallisWhen writing about any species of beetle, one has to take aquatica or on the hybrid between these two species. Innotice of what has previously been written, particularly on conversation with Dr. Joyanneke Bijkerk, a Dutch gallexpert, she confirmed that she had only ever found thisfood plants. It is very easy to add an additional foodgall on V. catenata in the Netherlands. The two plantsplant for any species, but much more difficult to removeare very similar, were not recognised as distinct in theany previously published record.days of Fowler, and great care is needed to distinguishbetween them.My concern is over Gymnetron villosulum, the larvae ofwhich cause a distinctive gall in the seed heads of its foodThe purpose of this note is to suggest that the larvae ofplant. This food plant is given as Veronica anagallisGymnetron villosulum feed only on Veronica catenata,aquatica by Fowler 1891, and by Joy 1932; just asVeronica by Walsh, A Coleopterist’s Handbook 1954; as and I would be pleased to hear from any observers whoVeronica anagallis-aquatica, V. catenata, V. scutellata & have recorded otherwise.V. beccabunga by Redfern & Shirley, British Plant GallsEric Philp2002; and as Veronica anagallis-aquatica & V. catenataby Philp, A Coleopterist’s Handbook, Cooter & Barclay2006.On the food plants of Gymnetron villosulum.Halyzia sedecimguttata (Linnaeus) Bankhead ofTinwald*, NY0583, Dumfriesshire [VC 72], larvae beatenfrom Fagus sylvatica L. by SD, 30.viii.2009. MiltonLockhart*, NS8148 Lanarkshire [VC 77], larvae andadults beaten from various deciduous trees by both JDand SD, 31.viii.2009Some Scottish ladybird recordsAphidecta obliterata (Linnaeus) Loch Lubnaig, NN5811(adult drowning in flotsam at edge of loch - JD) andCambusbeg, NN6604 (beating Pinus sylvestris L. andLarix sp. - SD), West Perthshire [VC 87], 2.ix.2009. First published record for vice-county?Coccinella hieroglyphica Linnaeus Cambusbeg*,NN6604 swept off open mire by JD, 2.ix.2009.JONTY DENTON, Old Hall Place, Hussell Lane,Medstead, Hampshire, GU34 5PF & SCOTTY DODD, 1Pine Cottages, Harpers Road, Ash, Surrey, GU126BZ.Calvia quattuordecimguttata (Linnaeus) MiltonLockhart*, NS8149 Lanarkshire [VC 77], beaten fromUlmus glabra Huds by SD, on 1.ix.2009.2
Beetle News Vol. 1:4 December2009ISSN 2040-6177Additional records of Diaperis boleti (Linnaeus)(Tenebrionidae) from Surrey [VC17] during2009.·Scotty Dodd1 Pine Cottages, Harpers Road, Ash, Surrey GU12 6BZ···This note summarises further Surrey [VC17] site recordsof Diaperis boleti (Linnaeus) [RDB2] during 2009,confirming that this species is now well established andlocally common on the heathlands and commons of westSurrey (Dodd & Denton, 2008). It would also suggest thatthe RDB2 (Vulnerable) status is no longer justified forthis species. To the best of the author’s knowledge, thereare currently no records from neighbouring Berkshire[VC22]. All records are from 2009 and made by theauthor unless otherwise stated.····Whitmoor Common, Worplesdon (SU9853). 10.vi. InPiptoporus betulinus brackets.Little Pond, Frensham (SU8641). 13.vi. In Piptoporusbetulinus bracket.Stanners Hill, Chobham (TQ0062). 23.vii. InPiptoporus betulinus brackets.Bagmoor Common, Elstead (SU9242). 14.viii. InPiptoporus betulinus bracket.Stanford Common, Pirbright (SU9454). 31.x.Elytron in Piptoporus betulinus bracket.Little Pond, Frensham (SU8641). 13.vi. InPiptoporus betulinus bracket. With G.A.Collins.ReferencesDODD, S.G. & DENTON, J.S. 2008. Recent recordsof Diaperis boleti (Linnaeus) (Tenebrionidae) inBrentmoor Heath, West End (SU9361). 27.v. & 17.vi. Surrey and North Hampshire with an update on thecurrent British distribution. The Coleopterist 17 (3):In Piptoporus betulinus brackets.155 – 160.Chobham Common (SU9763). 01.vi. In Piptoporusbetulinus brackets. Rec: R.S.O’Hara. Det: S.G.Dodd.Review : Guides to British Beetles by John WaltersThese are a series of A4 fold-out sheets, with detailedinformation, drawings and photographs of the species in thewild.Further information can be obtained e sheets are available at present, the one shown here,another covering the Cicindelinae, and the third on the Dorbeetles, Geotrupidae and Bolboceratidae.These would undoubtedly be useful for the less experiencedcoleopterist, and those who wish to identify some of the largerand more distinctive species in the field.Priced at 2 each plus postage.John has shown me drafts of two further sheets covering moreCarabidae and informs me that some future sheets will beavailable for free download from his site.Richard Wrightfor recording but with encouragement from the BTP andwith the recent establishment of the ShropshireEnvironmental Data Network (a virtual local recordscentre for the county), there has been a surge in interest inentomology. It is hoped that this can be sustained forsome time to come. If you would like more informationabout the Shropshire Entomology Day or the ShropshireBeetle Recording Group the contact for both is PeteBoardman, Biodiversity Training Project Officer who canbe contacted at pete@field-studies-council.orgNew Shropshire Beetle Recording GroupFollowing a number of training events led by DonStenhouse (county recorder for Lancashire and Cheshire )for the Biodiversity Training Project (BTP), theShropshire Beetle Recording Group is being launched atthe inaugural Shropshire Entomology Day at PrestonMontford Field Centre, near Shrewsbury on SaturdayFebruary 20th 2010. More training and recording days arebeing held in 2010 funded by the BTP and led by Don, inan effort to attract more people to record Coleoptera in thecounty. Shropshire has for many years been a black hole3
Beetle News Vol. 1:4 December2009ISSN 2040-6177of salt to each trap after it has been placed in position. InCheap and simple materials for pitfall traps.case of heavy rain, this extra salt will dissolve andRichard Wrightmaintain the concentration. A little detergent should beI have made extensive use of pitfall traps for many years. added to reduce surface tension. The main disadvantageAfter trying numerous different methods and materials, I of salt is that it may crystallise out on the surface ofspecimens when they are dried, and therefore anybelieve I have discovered a combination which is:specimens required for card mounting should be soakedŸ very economicalin water for a day or two to wash out the salt before theyŸ quick to insert and to serviceare mounted. A 3 kg bag of cooking salt can be bought forŸ effectiveless than 1. This will make about 9 litres of solution,sufficient for about 80 traps, for a cost of just over 1p perFor the traps themselves, I have now settled on half pintflexible plastic disposable “glasses”. I obtained mine from trap, far less than using ethylene glycol in the form ofParty Plastics http://www.partyplastics.co.uk where they antifreeze. In addition, as salt does not evaporate it can bereused.are priced at 36.13/1000 or 2.49/50. A box of athousand will last for many years and could be sharedamong several people. I have found these flexible glasses, To empty the traps, I use a plastic kitchen sieve, of thetype used for sieving flour etc. The contents of the trapwhich appear superficially flimsy, to be much moreare poured through the sieve and the salt solutionrobust in use than rigid ones since they bend and flexcollected and reused. I usually combine the catches from awhen trampled on, rather than breaking.group of traps, and then empty the sieve into a plastic bag,where the specimens will remain in good condition soThe glasses have a top diameter of 8cms, which meansthat they fit perfectly into the holes made with a standard long as they are kept cool. I sort the catch under the lowgarden bulb-planter. These planters can be obtained easily power of the microscope in a small white plastic dish. Topreserve the catch long term, I much prefer isopropanol,for about 5 - 6 from garden centres etc. They varydiluted to 50%, which is easier to obtain than industrialconsiderably in strength, which is not proportional tomethylated spirits (it can be bought on EBay), evaporatesprice. I have found that painted metal planters withmuch more slowly, can be diluted further and does notwooden handles are generally stronger than shiny metalones with plastic handles. They work well except on very make the specimens so stiff. The best containers for longterm storage I have found to be 90ml translucent flip-tophard ground where a trowel is needed.polypropylene containers which I obtained from AlanaEcology ( 22.50/100). These are unbreakable,It is essential to cover pitfall traps in some way for twolightweight, do not leak or allow evaporation and the lidreasons. Firstly, they invariably trap small vertebrates,cannot be lost. They are unaffected by ethyl acetate andparticularly shrews, if left uncovered. It is illegal (andimmoral) to allow protected species such as shrews to be hence can also be used as killing jars.trapped by not taking reasonable precautions. Secondly, acover prevents leaves, grass etc from falling into the trap Using these methods, I have found it possible to set andwhich will greatly reduce its efficiency. Chicken wire has service large numbers of pitfall traps in short time and atlow cost. In addition, the catch seems to be at least asbeen suggested, but I have found the best material to bemesh sold for making rabbit and guinea pig runs. This has good as, if not better than, more sophisticated andexpensive methods that I have tried in the past.a square mesh and is much stronger and more rigid thanchicken wire. It can be obtained from any “Wilkinsons”Richard Wrighthardware store. A roll costing 4.99 can be cut up, withstrong kitchen scissors or wirecutters, into covers for 90traps. I have not found it necessary to fix these covers tothe ground as they fit flat and are not easily disturbed. Thecut ends can be pushed into grass roots etc.For preservative, I now use only a saturated solution ofsalt. In this case, I am completely in disagreement withthe authors of the Natural England document Surveyingterrestrial and freshwater invertebrates for conservationevaluation who state that a saturated salt solution is“adequate for the short-term exposure of traps but uselessfor normal weekly or fortnightly periods”. On the contary,I have found saturated salt solution to be far moreeffective than e.g ethylene glycol and able to perfectlypreserve both insects and spiders for up to two months. Ibelieve the secret is to ensure that the solution iscompletely saturated (1 kg of salt will make about 3 litresof saturated solution) and then to add an extra teaspoonful4
Beetle News Vol. 1:4 December2009ISSN 2040-6177Beginners’ GuideThe species of Glischrochilus (Nitidulidae)Richard WrightThe three British species of Glischrochilus are easilyrecognised. They are rather elongate, parallel-sidedbeetles, with the typical clubbed antennae of theNitidulidae. All species have four yellow to reddishspots on the elytra. There are few other Britishbeetles with which they can be confused, exceptperhaps a couple of the species of Mycetophagus,which have similar elytral patterns but lack thestrongly clubbed antennae. Glischrochilus areassociated with trees, usually found under bark or atsap, but can also be found in flight.G. quadriguttatusWith practice. the species can be separated withoutrecourse to a key.G. quadriguttatus::Ÿ yellowish spotsŸ anterior spots irregular in shapeŸ pronotum not contracted basallyG. quadripustulatus:Ÿ reddish spotsŸ anterior spots irregular in shapeŸ pronotum contracted basallyŸ associated with conifersG. hortensisG. hortensis:Ÿ reddish spotsŸ all spots more regularŸ pronotum not contracted basallyKey1. More flattened, parallel species. Pronotumcontracted in front of the hind angles where it issomewhat narrower than the elytra at the base.Elytral spots reddish, anterior somewhat irregular,posterior more regularquadripustulatus (L.)More convex species. Pronotal base notcontracted, as wide as the elytra at the base.G. quadripustulatus22. Elytral spots yellowish, anterior spot irregular inshape.quadriguttatus (Fab.)Elytral spots reddish, all spots more or lessregular.hortensis (Fourc.)5
Beetle News Vol. 1:4 December2009 2 ISSN 2040-6177 Some Beetle Species New to Warwickshire in 2009 Not altogether unexpected was the first recorded occurrence of Panagaeus bipustulatus (Fabricius) in Vice-county 38. The exact details of the location have yet to be received by the author, but the record concerns a
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