THE BULLETIN OF THE AMATEUR ENTOMOLOGISTS’ SOCIETY VOLUME 27 1968 Edited by H. V. DANKS, B.Sc.,. A.R.C.S., F.R.E.S. and D. CORKE, B.Sc., L.I.Biol. Index compiled by D. H. SMITH, F.R.E.S. The Amateur Entomologists’ Society 355 Hounslow Road, Hanworth, Feltham, Middlesex ii AES BULLETIN, VOL. : INDEX AAG Annual General Meeting, 1968, 36, 75 ie RS Apparatus and Methods: ANSOrge, olf Ciic, so Badmin, J. S., 20, 116 Berman, H. J., 33, 70, 98, 136 Bradbury, K., 112 Caiger, H., 93 Caswell, W., 71 Cook, N., 64 Cooper, J. E., 54 Cooter, J., 5, 36, 72, 104 Corke, D., 73, 105 Cribb, P. W., 83, 104, 132 Danks Fi-Ve, 15-37 Emmet, A. M., 4, 41, 79, 107 Felton, J. C., 5, 42, 81, 109 Finbow, P. W., 134 Gregory, J. L., 110 Heal, J., 132 Heath, J., 120 Hilliard, R. D., 45 Hodges, G. B., 34 Howarth, T. G., 77 © Jackson, J., 97 Jeffares, M., 62 Knight, T. F., 35 Lassman, L. R., 52 Longman, D. J., 51, 72 Mason, B. A., 45 McLeod, L., 88 Mobbs, P., 70 Morrison, B., 7 Muggleton, J., 56, 90 Perceval, M. J., 31 Pickard, E., 46 Plester, L., 27, 34, 60, 68, 128 Smith, D. H., 92, 97 Smith, L., 71 Sutton, G. R., 134 Taylor, J. S., 85 Thompson, G., 9 Uffen, R. W. J., 71 Vincent, J. F., 18, 51 Wightman, J. A., 13 Williams, C. B., 134 Willmott, K. J., 11 Wragg, G., 133 Wurzell, B., 34, 96 SUBJECT Aims of the Amateur Conservation group, 9 Annual exhibition, Gct., 1967, 42 1968, 74 Baits and traps, 53, 79 Cabinets and setting boards, 94 Cage for overwintering pupae, A., 132 Hammond’s box, 20 Hymenopterist’s trap nest, 42 Insect cages, 91 Marking moths, 51 Relaxing Lepidoptera, 51 Book reviews: Field and Meadow Life, 138 Flies of the British Isles, 137 Pocket Encyclopedia of plant galls colour, 138 Warne’s picture reference books, 136 Breeding for the reinforcement of species, Butterflies in the Crimea, USSR, 1967, 60 Butterflies in France and Spain, Augus September, 1966, 27 Clepsis costana, Fab. Observations on bree ing, 109 . Collecting in Scotland, 45 Collecting methods: Light trapping. An ecological approach 1 18 see also, 5 Collecting notes: February, 1968, 1 May, 1968, 38 August, 1968, 77 November, 1968, 105 Conservation group. The aims of t amateur, 9 Corsica-East of the mountains, 56 Council’s report, 1967, 74 Distribution maps scheme. The Lepidopter 116 Ditto—Odonata, 119 Distribution—Abroad: Finnish insects— Butterflies, 21, 123 Lepidoptera, 22-25 Yucatan—Mexico, 69 Distribution—Home: Water beetles in a Cheshire pond, 92 Editorial; 1, 37,-73;.105 Entomological Liaison c’ttee of the Ni Cons. The annual Report of the Soc. re on the, 76 | Erebia epiphron. A new aberration of t! Scottish race, 81, 138 European Holiday, 1967. A., 62 Home-made cabinets and setting boards, Hormones in insects, 13, 47 Hymenoptera Aculeata, 4, 41, 79, 107 Identification advisors, 73, 139 Junior Conservation prize, 37 Junior News section, 31, 68, 97, 134 Larval stage in Automeris aurantiaca (Wey —Prolonged, 54 > BULLETIN; VOL. 27 iii a a epidoptera distribution Maps scheme, 116 ARANEIDA etters to the Editor: Gnats and sound, 134 Land snails—love darts, 97 Scytodes thoracica, 33 Latin names, 96 Light trapping, 70 Pale clouded yellow, 70 White admiral in Essex, 134 pecacory Lepidoptera in Sth Africa 1965-66, 8 loth marking, 51 lotes and Observations: Clouded Yellow in Sussex. The, 34 Comma in Basildon. Notes on the, 132 INSECT Death’s Head Hawkmoth in Bedfordshire. : The, 35 Elephant Hawkmoth. Unusual foodplants for the, 34 CHELEUTOPTERA Glow-worm in Kent, 34 Gnats with an antenna for music, 33 Lepidoptera homing devices, 71 Carausius morosus, 135 poner ralled Bue waco bs Aus Clonopsis gallica, 59, 90, 135 oisonous nature of peach leaf on Cabbage Rutan elas maoenlicvac: 20 P g Sipyloidea sipylus, 90, 136 Scale insects in Sth. England, 133 Silver-striped Hawkmoth in Bucks. The, COLEOPTERA 35 Small Skipper numbers in Middlesex, 71 otes from a Finnish diary, 64, 121 Aclypea (—Blitophaga) opaca, 7 otes from Essex. Some, 45 Agabus bipustulatus, 6 otes on breeding Zygaena carnicolica, 110 A. sturmii, 6 otes on the flight activity of Orthosia Agonum ericeti, 6 (Noctuidae-Lep) 112 A. scitulum, 6 Dservations on breeding Clepsis costana, Anthobium unicolor, 6 109 Aphodius aestivalis, 7 Jonata distribution maps scheme, 119 A.ater, 7 ‘thosia (Noctuidae-Lepidoptera). A.depressus, 7 Notes on the flight of, 112 A. fimetarius, 7 rasitic insects, 52 A. lapponum, 7 ypulations of Lepidoptera in E. Africa A. nemoralis, 7 1965-66. Abnormally large, 85 Atheta aquatica, 6 aring stick insects, 90 A.arctica, 6 inforcement of species. Breeding for the, | A.hypnorum, 6 88 Athous haemorrhoidalis, 135 laxing Lepidoptera, 51 Atractocerus brevicornis, 108 ottish entomology 1966, 5 Calathus melanocephalus v.nubigena, 6 men in the insects. The transfer of, 11 C.micropterus, 6 uthern Switzerland and northern Italy C.piceus, 6 1967, 99, 128 Carabus glabratus var. lapponicus, 6 ck insects. Rearing, 90 Cicindela campestris, 6, 135 ichoptera. 7 C.hybrida, 102 ater beetles in a Cheshire pond, 92 Coccinella 7-punctata, 65 here to write. Reminder—, 36 Dendrophagus crenatus, 7 gaena carnicolica. Notes on breeding, 110 Dictyopterus aurora, 7 Emus hirtus, 102 Eremotes ater, 7 Euchroma goliath, 35 . Geotrupes stercorosus, 7 Harpalus aeneus, 135 Hydrophilidae—local list, 93 ARACHNIDA Hylobius abietis, 7 Ilybius bipustulatus, 6 SCORPIONIDEA Lampyris noctiluca, 34 Lathrobium elongatum, 6 Irpio occitanus, 60 Leptinotarsa !0-lineata, 63 iv AES BULLETIN, VOL. 27 a a ee Lochmaea suturalis, 6 Lasius flavus, 4 Lucanus cervus, 104 L.niger, 4 Lytta vesicatoria, 104 Megachile centuncularis, 41 Nebria gyllenhali, 6 Omalus aeneus, 41 N.gyllenhali var. balbii, 6 Polistes sp., 60 Ocypus brunnipes, 6 Rhyssa, 129 Oeceoptoma thoracicum, 7 Sirex gigas, 135 Patrobus atrorufus, 6 Urocerus, 129 Philonthus marginatus, 6 Xylocopa sp., 60 P.politus (—aeneus), 6 Phoracantha tricuspis, 72 Plateumaris discolor, 6 Pogonocherus fasciculatus, 6 ISOPTERA Pterosticus diligens, 6 P.oblongopunctatus, 6 Pytho depressus, 7 Quedius fuliginosus, 6 Q.molochinus, 6 Rhagium bifasciatum, 6, 135 R.inquisitor, 6 LEPIDOPTERA Serica brunnea, 7 Kalotermes flavicollis, 59 Staphylinus erythropterus, 6 Abrostola tripartita, 46 Stenus impressus, 6 Acherontia atropos, 35 Thanatophilus rugosus, 7 Acleris variegana, 1 Trichocellus cognatus, 6 Actias selene, 136 Xantholina tricolor, 6 Agapetes galathea, 100 A.lachesis, 29 Aglais urticae, 28, 62, 66, 101 spp. ichnusa, £ Agonopterix (Depressaria) alstroemeriana, 10 A.applana, 106 PENOU ORME A A.heracliana, 106 A.hypericella, 39 Mantis religiosa, 59, 63 Agriades glandon, 130 Agrodiaetus damon, 29 Albulina orbitulus (pheretes), 102 Anagasta (Ephestia) kuehniella, 77 Anaphaesis mesentina, 85 EUPUBL Antheraea harti, 136 A.pernyi ,136 Chironomus pseudothumni, 33 Anthocaris cardamines, 45, 100 Melophagus ovinus, 53 Apatele alni, 45 A.menyanthidis, 46 A.rumicis, 135 Apatura ilia form clytie, 131 A.iris, 10 Mareen Aphantopus hyperantus, 100, 130 Aporia crataegi, 100 Cimex lectularius, 13 Araschnia levana, 30, 31 Pulvinaria, 133 Arethusana arethusa, 27 Rhodnius prolixus, 11 Argynnis lathonia, 57 A.niobe, 61 A.pandora, 57 A.paphia, 29, 61, 130 ab. valezina, 57 ENN ENCI eR Argyresthia brockeella, 3 A. goedartella, 3 Ancistrocerus albophaleratus, 41 Argyritis (Aristotelia) atrella, 39 A.antilope, 41 Aricia allous, 102, 123, 130 A.catskill, 41 A.agestis, 57, 123 A.pictus, 41 Automeris aurantiaca, 54 Andrena helvola, 108 Biston betularia, 109 Anthidium manicatum, 81 Boloria pales, 130 Apanteles glomeratus, 100 Bombyx mori, 15 Euura amerinae, 65 Brintesia circe, 28, 61, 63 Formica rufa, 65 Bupalus pinaria, 135 AES BULLETIN, VOL. 27 callophrys rubi, 102 ‘archarodus alceae, 29, 58, 62 ‘arterocephalus palaemon, 100 caryocolum tricolorellum, 3 catopsilia florella, 83 cedistis farinatella, 3 celastrina argiolus, 32, 57, 62 -eramica pisi, 46 Serastis rubricosa, 51 Cerura furcula, 46 *.vinula, 45 charaxes jasius, 57 chiasmia clathrata, 135 citria lutea, 46 clepsis (Tortrix) costana, 39, 109 Clossiana dia, 28 c.euphrosyne, 100 c.selene, 63, 100, 131 C.thore, 100 C.titania, 101 Coenonympha corinna, 57 C.pamphilus, 57, 63 C.tullia, 117 Coleophora ardeaepennella, 77 -.albidella, 77 Z.anatipennella, 77 ¢.badiipennella, 79 i.fuscocuprella, 78 z.gryphipennella, 3 z.hornigi, 77 5.ibipennella, 77 Z.limosipennella, 79 c.milvipennis, 79 C.orbitella (wilkinsoni), 79 Colias australis, 29 C.croceus, 29, 31, 34, 58, 62, 63 C.electo, 87 electo-pseudohecate, 87 C.hyale, 27, 31, 58, 63, 102 C.palaeno, 129 C.phicomone, 102, 129 Colocasia coryli, 46 Cupido minimus, 101, 32, 120 C.sebrus, 101 Cyaniris semiargus, 100 Danaus chrysippus, 84 D.plexippus, 68 Dasycera sulphurella, 3 Dasychira pudibunda, 130 Depressaria pastinacella, 106 Dira petropolitana, 100 Dolbina tancrei, 135 Dysstroma truncata, 46 Endothenia gentianaeana, 3 “=piblema scutulana, 3 =pinotia tedella, 3 =rebia aethiops, 63 =.cassioides, 28 =.ceto (=alberganus) 100, 129 E.christi, 129 =.epiphron and sub-species, 81, 104 _ transposition of names, 138 Z.euryale, 103, 129 =-flavofasciata, 102 lat} oy ae” | E.melampus, 129 E.medusa, 103 E.mnestra, 129 E.montanus, 129 E.neoridas, 30 E.pandrose (lappona), 102 E.pharte, 81 E.triarius, 129 E.tyndarus, 102, 129 Erynnis tages, 29, 62, 100 Eulia ministrana, 110 Eumedonia chiron, 101 Eumenis semele, 61, 63 Euphydryas aurinia, 119 E.glacigenita, 104 Euspilapteryx aurogutella, 38 Everes alcetas, 30 E.argiades, 28, 30 Fabriciana adippe, 29 form cleodoxa, 103 Gegenes nostrodamus, 29 Glaucopsyche alexis, 101 Glycesthia aurota, 83 Gonepteryx cleopatra, 58 G.rhamni, 3, 66, 118, 131 Heliothis armigera, 85, 87 Heodes alciphron (ssp. gordius), 102 H.tityrus, 30, 131 ssp. subalpina, 101 H.virgaureae, 30 Hepialus hecta, 135 Herse convoluli, 59 Hesperia cirsii, 58 H.comma, 28 Heteropterus morpheus, 129 Hipparchia alcyone, 28, 103 H.serratulae, 58 H.arastaeus, 57 H.comma, 29 H.fagi, 29, 63, 103, 130 H.semele, 29 H.statilinus, 61 Hippotion celerio, 35 Imbrasia epimethia, 87 Inachis io, 30, 101 Iphiclides feisthameli, 29 |.podalirius, 57 Issoria lathonia, 29 Lampides boeticus, 29, 32, 57, 71 Laothoe populi, 45 Laphygma exempta, 84, 85 Lathronympha strigana, 38 Leptidea sinapis, 28, 58, 62, 104 Limenitis anonyma, 28 L.camilla, 31, 45, 130 Limnoecia phragmitella, 3 Lithocolletis amyotella, 107 L. distentella, 107 L.faginella, 3 L.harrisella (cramerella), 107 L.hegeriella, 107 L.lautella, 107 L.messaniella, 3, 107 L.quercifoliella, 107 ! roboris. 107 Vi L.trifasciella, 3 Lycaena dispar, 10 L.phiaeas, 46, 57 ssp. eleus, 57 var. coeruleopunctata, 57 Lygris testata, 46 Lymantria dispar, 63 Lysandra bellargus, 10, 28, 32, 62, 63, 102 L.coridon, 27, 31, 62, 100, 103 L.dorylas, 101 L.escheri, 103 L.hispana, 28 Macroglossum stellatarum, 59, 63 Macrothylacia rubi, 31 Maculinea alcon, 129 M.arion, 100, 129 Mamestra brassicae, 71 Maniola ida, 57 M.jurtina, 30, 57, 60, 63, 100 Mellicta athalia, 100 M.aurelia, 103 M.deione, 27 M.parthenoides, 28, 101 Melitaea athalia, 10 M.cinxia, 10, 31 M.diamina, 101, 129 M.didyma, 27, 101 M.phoebe, 27, 63 Mesoacidalia charlotta, 28, 100 Minois dryas, 30, 130 Mompha conturbatella, 40 M.decorella, 40 M. fulvescens, 39 M. ochraceella, 40 M. nodicolella, 40 M.propinquella, 40 M. raschkiella, 39 M. schrankella, 41 M. subbistrigella, 40 Nemeobius lucina, 130 Nepticula aurella, 4 Neptis rivularis, 130 Nomophila noctuella, 85 Notodonta ziczac, 46 Nymphalis antiopa, 32 N.io, 31, 35 N.polychloros, 101 Ochlodes venata, 45 Olethreutes lacunana, 40, 109 Orgyia antiqua, 46 Orneodes hexadactyla, 135 Orthosia cruda, 112 O.gothica, 51, 112 O.gracilis, 112 O.incerta, 51, 112 O.munda, 112 O.stabilis, 51, 112 Palaeochrysophanus hippothoe, 101 Panaxia dominula, 130 Papilio demodocus, 84 P.machaon, 29, 32, 57 P.machaon gorganus, 63 P.podalirius, 62 Paramesia gnomana, 40 Pararge aegeria, 29, 57, 60 AES BULLETIN, VOL. 27 P.maera, 30, 63 P.megera, 57, 61, 63 Parasemia plantaginis, 46 Parnassius apollo, 100, 129 P.phoebus, 101, 129 P.mnemosyne, 103, 129 Philotes baton, 57 P.vicrama, 62 Phlogophora meticulosa, 135 Pieris brassicae, 58, 62 P.bryoniae, 101, 129 P.mannii, 100 P.napi, 31, 46 P.rapae, 58, 62, 100 P.pylaon, 104 Plebeius argus, 32 Polygonia c-album, 57, 61, 132 Polyommatus icarus, 28, 57, 62, 63 Pontia daplidice, 58, 62 Precis eonone, 86 Pyrgus cirsii, 29, 100 P.malvae, 58, 62, 63 Rhodometra sacraria, 85 Saturnia pavonia, 45 Satyrus cordula, 63, 102 Scolitantides orion, 130 Selenia bilunaria, 109 Setina irrorella. 63 Simaethis fabriciana, 3 Sphinx ligustri, 59 Spialia sertorius, 29, 62, 129 Stellaria holostea, 3 Synchloe callidice, 104 Syntarucus pirithous, 29 S.telicanus, 57 Syntomis phegea, 130 Thecla quercus, 62 Thymelicus sylvestris, 31, 45 Tischeria marginea, 4 Urbanus proteus, 68 Utetheisa pulchella, 85 Vanessa antiopa, 131 V.atalanta, 30, 45, 57, 63 V.cardui, 29, 57, 84, 87, 101 Ypsolophus (Cerostoma) alpellus, 77 Y.sylvellus, 77 Zygaena carnicolica, 110 Z.exulans, 104 Z.lonicerae, 110 ORTHOPTERA Acrida mediterranea, 58 Blatta orientalis, 16 Decticus albifrons, 59 Oedipoda coerulescens, 59 O.germanica, 59 Tettigonia viridissima, 59 SIPHONAPTERA Julex irritans, 60 | STREPSIPTERA _tylopidae, 108 | TRICHOPTERA || Agrypria pagetana, 9 \nabolia nervosa, 9 _thaetopteryx villosa, 9 -eptocerus aterrimus, 9 _.fulvus, 9 -imnephilus flavicornis, 9 ..lunatus, 9 _.nigriceps, 9 .rhombicus, 9 ..Sparsus, 9 | AMPHIBIA dyla arborea meridionalis, 56 REPTILIA CHELONIA | hermanni, 56 SQUAMATA ‘acerta muralis, 56 viridis, 56 .vivipara, 65 “arentola maureticana, 56 AVES -arus ridibundus, 4 vasser domesticus, 4 turnus vulgaris, 4 MAMMALIA CARNIVORA eles meles, 53 INSECTIVORA orex araneus, 54 “AES BULLETIN, VOL. 27 Vii RODENTIA Apodemus sylvaticus, 54 Clethrionomys glareolus, 54 Marmota marmota, 162 Mus musculus, 54 PHANEROGAMS Aesculus hippocastanum, 61, 133 Anemone hepatica, 67 Arbutus unedo, 58 Aster tripolium, 40 Astragulus exscarpus, 104 A. glycyphyllos, 110 Brassica napus, 7 Chamaenerion (Epilobium) angustifolium, 40 Carduus sp. 3 Conium maculatum, 105 Corylus avellana, 78 Crataegus, sp., 1 Dipsacus sp., 3 Elodia canadensis, 792 Epilobium hirsutum, 39 E.montanum, 40 Fagus sylvatica, 3 Ficus carica, 56 Geranium sylvaticum, 101 Hedera helix, 61, 133 Hippocrepis comosa, 100 Hypericum perforatum, 38 Ilex aquifolium, 32, 133 Impatiens glandulifera, 34 Juniperus communis, 60 Lemna trisulca, 92 Limonium vulgare, 40 Lonicera périclymenum, 3 Lotus corniculatus, 111 Malva verticillata, 87 Olea europaea, 56 Onobrychis sativa, 110 Picea abies, 3 Pinus sylvestris, 3, 7, 65 Plantago lanceolata, 100 Potamogeton sp., 7 Potentilla palustris, 40 Primula farinosa, 101 Prunus spinosa, 1, 77 Quercus ilex, 3, 107 Q.petraea, 107 Rhododendron ferrugineum, 100 Robinia pseudacacia, 131 Rosa sp., 1 Rubus fruticosus, 4 Rumex alpinus, 102 R.hydrolapathum, 102 Salix caprea, 46, 65 Sambucus nigra, 62 Saxifraga aizoides, 101 Tussilago farfara, 65 Typha sp., 3 Urtica dioica, 3, 45 Viola biflora, 101 Vitis vinifera, 56 rahe - Werld List abbreviation : Bull. amat. Ent. Soc. > 4 ~ EDITED by H. V. DANKS, B.Sc., A.R.C.S., ved. F.R.E.S. | FREDERICK WARNE 1-4 Bedford Court, London, WC2 FUNGI The latest title in the Wayside and Woodland Series is a valuable and BUTTERFLIES AND MOTHS =| | WORLDWIDE SELECTION OF © interesting volume on fungi for é student and naturalist. Many out- PAPERED standing colour plates including 59 in water colour by Beatrix Potter others LEPIDOPTERA by R. C. Davis and E. C. Large. Chapters include uses of fungi, collection, identification and twelve chapters on classification. 224 pp text. 82 x 6. Case bound. Colour jacket. Price List from: ae ) DOUGLAS E. DODWELL 28 SUMMERLEAZE PARK YEOVIL, SOMERSET BY W. P. K. FINDLAY PRICE 65s. NET AES NOTICE — where to — | Membership applications and first subscriptions to: D. E. Dodwell, 28 Summerleaze Park, Yeovil, Somerset. Yeovil 3928. P. Taylor, 18 Old Manor Drive, Middlesex. Changes of address and non-arrival of Bulletins to: Isleworth, Advertisers and for Prospectus of Society and Application forms to: Offers to lead field meetings, etc. to: Manuscripts, drawings and books for review to: Subscription renewals (25/- per annum, 12/6 under 18 years) to: Youth matters to: Offers of help, queries, etc. to: Annual exhibition matters to: R. D. Hilliard, /8 Ss Stanmore, f Mid- Be | ' dlesex. GRimsdyke 0460. C. B. Pratt, 1 West Ham Lane, London, E.15 H. V. Danks, Imperial College Field Station, Silwood Park, Sunninghill, Ascot, Berkshire. B. R. Stallwood, !7 Claremont Avenue, Sun- bury-on-Thames, Middlesex. Sunbury 2687. H. J. Berman, St Ivo School, St Ives, Hunts. P. W. Cribb, 355 Hounslow Road, Hanworth, Feltham, Middlesex. FELtham 3099. B. F. Skinner, 85 Elder Road, West Norwood, London, S.£.27. GIPsy Hill 0057. — EDITORIAL The advisability of breeding Lepi- doptera for release has recently become a topic of discussion in the Bulletin. The Members who consider- ed that such releases prior to full studies and without proper control were harmful, were further dis- quieted by the existence of the AES Breeding Group—which had the general aim of rearing butterflies for release. The AES Council have had in mind the necessity of conservation of our insects and their habitats, and there has now been derived an Amateur Conservation Group within the Society. The Breeding Group has ceased to exist, any activities in this direction being incorporated into the much broader-based Conservation Group, the aims of which are set out in an article in the following pages by the convener of the new group, Mr K. J. Willmott. The Council is able to give its full support to the new group, which will cooperate with the various existing local and national bodies for nature conservation but—unlike most of them—exists as representative of entomologists. There is certainly a need in the AES for such a coordinat- ing group concerned with conser- vation, and it is to be hoped that Members will give it their fullest support. There is a very great deal to be done along the lines indicated by Mr Willmott—and this requires that as many Members as possible share in the activities of the new group. The report on the successful 1967 Front cover illustration: Stages in the life- cycle of the Camberwell Beauty Butterfly (Nymphalis antiopa Linn.), drawn by Mr A. M. Freebrey (3359). a AES BULLETIN No. 27s FEBRUARY, 1968 Annual Exhibition has unfortunately been delayed, and will appear in the next issue. The first and second Junior Exhibitors’ Prizes were awarded to Mr A. Lucas (3934J) and Mr D. V. Lewis (3963J) respectively. Fuller details will be published in the Exhibition report. Finally, may | draw the attention of Macrolepidopterists to Mr Emmet’s provision, in his Smaller Moths Collecting Notes following, of a pathway to take them into the rewarding study of ‘Micros’. H. V. Danks (2907). COLLECTING NOTES FEBRUARY 1968 The Smaller Moths Acleris variegana Schiff. Mr E. S. Bradford drew the lower specimen some years ago and, forgetting that he had done so, drew the upper one last winter. As the two portraits represent different forms of the same species, | thought it would be of interest to show them together. Mr Bradford wrote two sets of notes to accompany the drawings; these | have amalgamated, as far as possible retain- ing his original words. “This, as its name suggests, is a variable species. The upper drawing is from a fairly normal specimen bred from Hawthorn (Crataegus sp.), while the lower is from another bred from a rambler rose (Rosa sp.) in the garden. The larva also feeds on Blackthorn (Prunus spinosa Linn.); it folds a leaf of its foodplant or spins two leaves together. FEBRUARY, 196 Pin atin... & dagen’ ragienty Kitan Acleris variegana Schiff. “The usual form of the imago, like the one in the upper drawing, has a creamy ochreous basal patch, the terminal patch being bluish or purplish black with reddish scales. The form illustrated in the lower drawing has the basal half of the wing of a pale cream colour. | have speci- mens in which the forewings are a deep bluish black all over. One feature common to nearly all speci- mens is the orange-brown cilia at the apex, fading towards the inner angle of the forewing. In fresh specimens one can see tufts of scales sticking up all over the wings; hence the old or common name, the ‘Rough- winged Button’. The hindwings are a pale greyish brown and in most specimens there are darker markings like a mosaic or tracery. The adult is on the wing from July till Septem- ber.”’ A general under whom | served in AES BULLETIN, VOL. 27 the war recently became one of the writers of the Official History of the Second World War. Before accepting his invitation, he asked for whom he would be writing—staff-college students, those who took part, foreigners assessing the British image, the general public or posterity. It makes so much difference to what you say and how you say it. He received no very satisfactory answer: he would be writing for them all. If | asked the Editor a similar question, | would expect an equally evasive reply, for what could he say? Now in this article | have decided to write for a very limited class of reader—for the collector of ‘Macros’ who is attracted to the ‘Micros’, but is fearful of taking the plunge. | am going to suggest to him fifteen common species, the larvae of which he can readily find in most parts of the country before the next issue of the Bulletin appears. Let him search for them, rear them, and throw away his ‘L’ plates. So the hoary old campaigner should turn the page and go straight on to the Hymenoptera Aculeata. | have selected three species of the Tortricidae. Epinotia tedella Clerck feeds on the needles of Spruce (Picea abies (Linn.) Karst), spinning them together and blanching them; fresh feeding is of a greenish white colour. Collect at the end of February. Endothenia gentianaeana Huebn. feeds on the pith in the heart of the heads of teasel (Dipsacus spp.). The larvae are full-fed in the autumn, but do not -pupate until the spring: gather them at any time. If you put on stout gloves and rip open thistle (Carduus spp.) stems, you will probably soon locate the pinkish larva of Epiblema scutulana Schiff. If you wait until April, you should also find pupae. _ From the Gelechiidae | have chosen Caryocolum tricolorellum Haw. During ‘late February or early March, collect the spun tender shoots of the Greater ‘Stitchwort (Stellaria holostea Linn.)— | a plant which is common under most hedgerows. | have selected the largest of the Cosmopterygidae, namely Limnoecia phragmitella Staint; the larvae are found in the shaggy heads of bulrushes (Typha spp.). Among the Oecophori- dae is Dasycera sulphurella Fab. lf you prise off the loose bark from the dead stumps of oak or other trees (or even from fallen branches), you should soon come across its whitish larva—and, possibly, other more exciting species. You should wait until April for my Glyphipterygid: then almost any patch of nettles (Urtica dioica Linn.) will yield loosely spun leaves containing larvae of Simaethis fabriciana Linn. Here are three suggestions for the Hyponomeutidae. The needles of Pine (Pinus sylvestris Linn.) are mined in March and April by the larvae of Cedistis farinatella Dup. If you pick the catkins of birch (Betula spp.) in April, concentrating on those which are distorted, you should get larvae of Argyresthia goedartella Linn. and the more beautiful but slightly less common A. brockeella Huebn. It is rather early for the Coleophor- idae, but you should be able to find Coleophora gryphipennella Bouch. on rose shoots by the middle of April. Look out for the characteristic ‘windows’ in the leaves, with the neat, round hole in the lower cuticle. You should readily be able to find three species of Lithocolletis. Search Beech saplings (Fagus sylvatica Linn.) which have retained their leaves and you will almost certainly find the mine of L. faginella Zell. on the underside; you can start collecting them right away. You should, how- ever, wait longer for the other two species. These are L. messaniella Zell. in Holm Oak (Quercus ilex Linn.)— passim—and L. trifasciella Haw. in the young leaves of Honeysuckle (Lonicera periclymenum Linn.); by mid-April, if 4 you search in woods, you should start finding the inflated, twisted and often discoloured leaves containing the larvae of the latter species. From the Lyonetiidae | have picked Tischeria| marginea Haw., which puckers the leaves of the evergreen bramble (Rubus fruticosus agg., part) with rather a pear-shaped mine. The larvae commence feeding in the autumn and complete their growth in the spring; so the leaves may be located in the early months of the year, but should not be picked until April. Much the same applies to Nepticula aurella Staint.—my final selection—which also hibernates in its mine and the long galleries of which are conspicuous in the leaves of the same foodplant; but these larvae ieave their mine to pupate and, if it is a mild spring, they will be gone early in the month. If you get all fifteen of these species, you are doing well. Just to see if you are on your toes and to make it a little easier, | have, in fact, given you sixteen! And you experts, if against my advice you are still with me, what different selection would you have proffered to a_ hypothetical beginner, bearing in mind that we should try to represent most of the families? A. M: Emmet, (1379): The Hymenoptera Aculeata Now is the time for taking stock of past seasons and looking forward to, and planning for, the future. One topic | have had in mind relates to ants, and in particular to the marriage flights of the common species of Lasius, L. niger Linn. and L. flavus Fab. Both these species are abundant and widespread and have important influ- ences on the ecological processes of our countryside. The winged forms emerge in summer, sometimes as early as July, but more usually in ‘headed Gull, Larus ridibundus Linn.| FEBRUARY, 1968 | August, and on into September inj} %' some years. Nests of these species’ are founded by single fertilised |) queens. These, therefore, have to}! carry within themselves on their|) marriage flights sufficient nutrients) to support themselves for the period until the following spring and also to) “| allow the first few workers to be) reared. The production each year of) large numbers of these winged queens | obviously injects into the environ-| ment an important food source, and many predators take advantage of): this, the best known being birds. 10) The particular feature that has) interested me is the habit of gulls in| circling to take these flying ants in the air. The only species | have definitely identified doing this is the Black-j)\ -—~< if a The bare fact that gulls hawk for ants) is recorded by Donisthorpe (1927,) p.237). In quoting only one example}: (Putney, 20th August 1921) he gives’ this association equal status with the}: taking of winged ants by such birds as) Swallows (Hirundo rustica Linn.),\): Sparrows (Passer domesticus Linn.)i} and Starlings (Sturnus vulgaris Linn.) (he also gives one record of a “‘Lesser|}: Tern’ (Sterna sp.)). However, | feel!) that this habit of gulls represents aj} significant adaptation of their normal/): behaviour. This is not the case with, the other birds named which habitu-)}, ally feed on the wing. : | first noted gulls taking flying ants) on 3rd August 1964 at Sittingbourne.) How often before that | must have seen them without really noticing, I} don’t know. Since then | have noted!) this behaviour each year in this area, } from Rainham to Herne Bay, they earliest date being 23rd July, in 1966,) the latest 19th September, in 1965. I}, have also seen the same behaviour on} the Belgian coast at Westende (I Ithiy. August 1965 and 22nd August 1967)./9) Indeed | now find that the behaviou of the gulls in an area is a ver sensitive indicator of the occurrence}, "AES BULLETIN, VOL. 27 and extent of an ant flight. The behaviour of the gulls in such ‘lights is very characteristic. The ndividual birds fly slowly round, ‘liding interspersed with rather rapid ving beats noticeably fast for the actual speed of flight. During this tircling catching movements are nade, either of the head only or of “he whole body as the culmination of series of rapid wing beats. The flocks -eem rarely to be of less than twenty or thirty birds, and often more than 00 are involved, circling up to 200 300 ft. More rarely some birds will swoop down below tree-top height, vay 30-50 ft. _ Two points interest me. First, how song established and how widespread +s the habit, and can the occurrence if flocks be used to follow the area ssver which ant flights are synchro- viised? As to the first point, the Black- ‘ieaded Gull is a species which has )narkedly changed its habits during Dhis century, changing from a coastal | ird to one that feeds widely over the ) ountryside. The change of behaviour hat enabled this to occur proved a ‘very successful one for the species, ‘ind perhaps the present case is nother example. Tne species has | pcapted its normal circling behaviour, n thermals and up-currents by the | Pe to the taking of flying ants which jormally occur under conditions of hermal activity. / On both points | now appeal to my veaders. If AES Members would make ) point during the coming season of )vatching for the behaviour | have Jescribed and if they do see it make _ note of the place, date, species of cull, and whether or not the presence flying ants was confirmed, a picture J vould quickly build up of the present jistribution of the habit. It would ‘Iso be apparent to what extent | bservations of this sort would form | convenient way of studying the ()ynchronising of the marriage flight fants over wide areas. | look forward to hearing from Members at the end of the season. 26.10.67. J. C. Felton (3740). REFERENCE DONISTHORPE, H. St. J. (1927). British Ants—their life history and classification. 2nd edn. Routledge, London. SCOTTISH ENTOMOLOGY 1966 [Continued from Bull. amat. Ent. Soc., 26: 109-14.] Coleoptera (by J. Cooter) My notes have been compiled from the list of Coleoptera collected by my father during May 1965 and June 1966 when he was on holiday as a volunteer warden at the Loch Garten Bird Reserve near Nethy Bridge, Inverness-shire. Mr J. K. Smith kindly sent mea list of the rarer species that he collected in September 1966 at Loch Garten. Many of the beetles are not true Scottish species and quite a few are widespread occurring in most parts of the British Isles. (The collecting season—when the coleopterist stops using collecting methods he has been using in the winter—begins about a month after it does in the south of England, i.e., the end of May.) My father found that the best collecting method to use in early spring was to pull up handfuls of wet feathery moss, squeeze it gently to get rid of any excess water, then shake the moss over a white sheet, or old plastic table cloth—as my father used. Any large beetle can then be captured and put into a tube, whereas the small fry can be collected with a pooter as they run across the cloth. While in Scotland in June, my father found moss to be unproductive and other methods of capture had to be employed. Most of the beetles found in the moss belonged to the Adephaga, [os although large numbers of Staphy- linids were also present. Several rare and local species were collected, namely a short series of the rare Agonum scitulum Dej. and a single example of the pretty A. ericeti Panz. Several ‘northern species’ such as Nebria gyllenhali Schoenherr and the var. balbii Bonelli were taken. Tricho- cellus cognatus Gyll. and Patrobus atrorufus Stroem were not too com- mon. P. atrorufus, a moorland species, is more common in the north than in the south. It does occur in the south, however, and | have captured a specimen near Brockenhurst in the New Forest, Hampshire. Perhaps the most common beetles in the moss and elsewhere were three species of Calathus, namely C. melanocephalus Linn. var. nubigena Hal., C. micro- pterus Dufts. and C. piceus Marsh. Other species of the Carabids include Pterosticus oblongopunctata Fab. P. diligens Sturm and several smaller beetles which | still have to name. Among the Staphylinidae were lots of common species and only a few rarities from moss; a specimen of Atheta (Liogluta) hypnorum Kw. and two uncommon _ ‘staphs’—Atheta (Metaxya) arctica Thoms. and A. (Hypatheta) aquatica Thoms. Two specimens of the large Staphylinus erythrepterus Linn. were captured in mid-June under stones at the side of Loch Garten. One example of Ocypus brunnipes Fab. was taken while my father was taking the bark off a dead birch (Betula) tog. | have only found this beetle hibernating under bark. This may be only coincidence. Some of the more common ‘staphs’ were Quedius molochinus Grav., Q. fuligon- osus Grav., Philonthus marginatus Stroem, P. politus Linn. (=aeneus Rossi), Lathrobium elongatum Linn., Stenus impressus Germ., Anthobium unicolor Marsh (from fungus), and several very small species probably from the genus Atheta and related genera. Three specimens of Xantho- FEBRUARY, 1968 linus tricolor Fab. from Glenmore)” were captured under stones. Mr Last informs me that this species is found more in Scotland than in England. By luck my father captured an example of the large Carabus glabra- tus Payk. var. lapponicus Born at the edge of a road running through the Abernethy Forest where he also took a specimen of Cicindela campestris Linn., a beetle usually found in the south or coastal districts in the north and midlands, on sandy heaths or sand dunes. This particular specimen was found in a peaty region. In early May the Hydradephaga and aquatic Palpicornia can be easily netted. Several specimens of Agabus sturmii Gyll. and A. bipustulatus Linn. as well as a single specimen of Ilybius fuligino- sus Fab. were captured. Unfortu- nately, they can be taken in almost every other pond in the United Kingdom! Smaller members of the family (probably Hydroporus) were also captured, as were a few un- interesting aquatic Palpicornia. Only two species of Chrysomelidae were captured. One copper-red specimen of Plateumaris discolor Panz. was found in moss at the loch side. Sweeping the reeds later in June failed to produce any more of this species or any more of the aquatic Chrysomelidae. Lochmaeda suturalis Thoms., a very common insect in nearly all parts of the country, was abundant in mid-June on the heather. To my pleasure, two northern species of Cerambycidae were cap- tured by my father. One specimen o Pogonocherus fasciculatus Deg. appear- ed in the water net. This beetle is found in the south-east midlands (Lincolnshire?) but is believed to have been imported from the north. Three examples of Rhagium inquisitor Linn. were found early in the morning on freshly cut fir palings in the Abernethy Forest. Mr J. K. Smith found several of this species near Loch Garten. Rhagium bifasciatum ) AES BULLETIN, VOL. 27 Fab. was also found. Some larvae brought home by my father proved | to be R. bifasciatum. Only two species of Curculionidae were collected, these being Hylobius abietis Linn., | presumed to bea pest in some forests, | the other being the rare Eremotes ater / Linn., a northern insect. Although | listed by Joy (1932) as being rare, my | father has collected a series of this | beetle each time he has been in ) Scotland. (He told me that he didn’t | take too many of them because he |) found it so commonly and thought | that | must have caught it myself!) It | can be found on decaying trees or | stumps in the Abernethy and Rothie- murchus Forests. A very good find was Dictyopterus | aurora Herbst. Several of this species | were found in a rotten tree stump in | the Rothiemurchus Forest. This is a ‘truly northern beetle, being found / only in parts of Scotland. * Mr Smith found a single example of | the rare and beautiful Pytno depressus Linn. under the bark of a Scots Pine / log (Pinus sylvestris Linn.). Another Scottish beetle, it is found in North |) West areas of Scotland extending - south to Aviemore. Geotrupes stercorosus Scriba was | fairly common in the Abernethy | Forest and was the only large member || of the Scarabaeoidea noted. The true i) northern Aphodius beetles were fairly ; common—A. nemoralis Erichson was ;, to be found in deer or sheep drop- | nemoralis is rare and found in deer () droppings in Scotland.) Aphodius | lapponum Gyll. was not as common as | | expected. Britton states that A. i) Species, rare except in the Scottish , Highlands. It was also found in sheep y Or deer droppings. Other dung y beetles include Aphodius ater Deg., A. depressus Kugelann, A. rufipes Linn., (| A. fimetarius Linn., and A. aestivalis y Steph. A single specimen of Serica » brunnea Linn. was bred from a pupa found in the Abernethy Forest. Several specimens of Thanatophilus rugosus Linn. were found in carrion and in carcases. One example of Oeceoptoma thoracicum Linn. was found in a rotten Swede (Brassica napus Linn.) and several others were under pieces of wood, etc. Only one example of the handsome Aclypea (=Blitophaga) opaca Linn. was cap- tured. Mr Smith found five specimens of Dendrophagus crenatus Payk. near Loch Garten. | would like to thank Mr D. Tozer, Mr H. Last, Mr J. Balfour-Browne, and Mr R. Adams for identifying some of the insects that were collected, Mr J. K. Smith for supplying a list of the Coleoptera that he captured in Scotland and my father for collecting so many beetles for me in his spare time. Trichoptera (by Brian Morrison) During the past year, practically all my observations have been con- fined to a stretch of the Union Canal which lies on the boundary of Edinburgh and over which crosses the road (A70) to Mid-Calder. | decided | would try to record the times at which the various species could be found in the adult state in this rather restricted area rather than go on hunting expeditions far and wide over the countryside. With regard to the Canal itself, there is very little to say. The bottom is muddy with a dense population of water weeds of various sorts, particu- larly Fontinalis, Elodea (Anacharis) canadensis Michx. (Canadian Pond- weed) and near the banks there is a profuse growth of Potamogeton sp. in some areas. The surface of the water, particularly in summer, becomes covered with a mat of duckweed (Lemna sp.). The fauna is very rich in still-water species and caddis larvae are particularly numerous. The accompanying table (Table 3) gives the results of my researches on adult May | June PHRY GANEIDAE Agrypnia pagetana sso) S Sy LEPTOCERIDAE Leptocerus aterrimus L. fulvus LIMNEPHILIDAE Limnephilus lunatus L. flavicornis Anabolia nervosa Chaetopteryx villosa Table 3: Diagram showing flying times of several species of Trichoptera found by the| Union Canal. In addition to the above, occasional examples of other species were found: Limnephilus sparsus——8.8.66. L. nigriceps—3.10.66 and 10.10.66. L. rhombicus and Stenophylax sp.—22.9.66. emergence but | am certain that there are several other species present judging from the types of larval cases found. Instead of giving a long discourse on the subject | would just like to mention one or two points which might be of interest and which | feel are worthy of further investigation. As | mentioned earlier, part of the Canal runs under a road bridge and in the course of the season | made a number of visits to the bridge to look for insects which might be resting on the underside of it. | was able to examine parts of it from the towpath which was about six feet broad. The large Phryganeids (Agrypnia pagetana Curtis) were found almost always hidden in the crevices in the stonework rather than on the surface. Anabolia nervosa Curtis and Chaetop- teryx villosa Fab. were only very rarely found under the bridge, but in season were extremely common on grasses and other plants growing on the Canal banks. Limnephilus lunatus Curtis and L. flavicornis Fab. were July FEBRUARY, 1968 Aug | Sept | Oct Nov Dec very common both under the bridge) (not usually in crevices) and on vegetation on the canal bank and at the edge of the towpath. 4 Leptocerus spp. were found most) | commonly at a position resting on the) side wall of the towpath, very often! | near empty pupae, and also flying very, close to the bank, rarely straying far| from the water. Limnephilus spp. on) the other hand were never found at the towpath edge under the bridge | and were quite commonly found 100° to 200 yards away from the canal on) fence posts by the roadside. | One point of interest is that around the fifth of July | discovered several larvae at the edge of the towpath next to the arch of the ° bridge. | am not sure what specie they were but | am fairly certain that they were Limnephilids. The fact that - | subsequently found empty pupal — cases and Limnephilids with not fully | expanded wings on the arch of th bridge just above the towpath make me feel more certain about this. Ii this is so, it seems that these larva emerge from the water when full AES BULLETIN, VOL. 27 grown and pupate on land. This has still to be verified. | have not come across any other such accounts of this behaviour. It will be seen from the table that L. lunatus is to be found right through December. Specimens dissected at that late date were found to be full of eggs. During the recent Xllth Ento- mological Congress in London, a paper was submitted in which it was stated that many Limnephilids which inhabit bodies of water which are seasonal in times of appearance, i.e., late summer and autumn, actually emerge in spring but remain in hiding until later in the year when they can lay their eggs in the newly formed pools. This makes me wonder whether Limnephilids might hiber- nate in certain circumstances. | am told this is very unlikely, but | hope to investigate the matter further. It seems to me interesting too that adults with eggs can be found as late as December. lfany Member is keen on taxonomy then the Trichoptera offer ample scope. Work has been done on the genus Limnephilus (and one or two other genera), and on the Leptoceri- dae, in more recent times, but a lot remains to be done. The trouble with the key in Mosely (1939), which is still the standard work, is that the diagrams are not always reliable and it is often impossible to determine single specimens if they are female. The following is a list of species taken in the area discussed: Agrypnia pagetana Curtis, Lepto- cerus fulvus Rambur, L. aterrimus Steph., Limnephilus lunatus Curtis, L. flavicornis Fab., L. nigriceps Zett., L. sparsus Curtis, L. rhombicus Linn., Anabolia nervosa Curtis, Chaetopteryx villosa Fab. Papers in other journals The following three papers on Scottish insects were published in 1966. HARPER, G. W. (1966). Ent. Record, 78: 50-2. Inverness-shire in 1965. MAITLAND, P. S. (1966). Entom., 99: 72-81. The distribution, life-cycle and predators of Amphinemura succicollis (Stephens), Plecoptera, in the river Endrick, Scotland. PELHAM-CLINTON, E. C. (1966). Ent. Record, 78: 43-5. Cossus cossus (Linn.) in Scotland. General | find it a useful discipline to note when the first specimens of certain groups make their appearance, as it gives a general indication as to whether the season is an early or late one. Table 4 shows the compara- tive emergence dates for four main groups which have not been mention- ed in the report so far. Unfortun- ately it is not possible to give anything First red. 1966 First red. 1965 Apis sp. [4cs2 ol 2 2018 Bombus sp. 23.4 31.3 Odonata 29:5 295 Orthoptera it hed 29.6 Table 4: Some first and last records. other than the name of the Order for two of them. Perhaps this will encourage some Members to con- tribute to these aspects of Scottish Entomology for my report for the season 1967! 20.3.67. George Thomson (3689). REFERENCES BRITTON, E. B. (1956). Handb. Ident. Brit. Ins., 5: (11). Scarabaeoidea. R. Ent. Soc. Lond., London. JOY, N. H. (1932). A Practical Handbook of British Beetles, Vol |. Witherby, London. MOSELY, M. E. (1939). The British Caddis Flies. Rout- ledge, Londen. TINDALL, A. R. (1963). Ent. Mon. Mag., 99: 115-23. Keys for the identification of adults of the genus Limnephilus (Trichoptera; Limnephilidae). THE AIMS OF THE AMATEUR CONSERVATION GROUP |. The present AES Breeding Group will no longer exist, but will become a part of this new AES group and will 10 FEBRUARY, 1968 have an entirely new constitution. 2. The main aims of the Amateur Conservation Group are as follows :— —To assist and cooperate with county and local conservation groups in order to interest them in, and advise them on, the con- servation of insect fauna and suit- able areas which should be given special attention. —To collect and collate information on local insects and the status of the insects and their habitats for use when such insects or areas are in danger. —To breed and supply insects for nature reserves and special areas where it has been agreed with other interested groups that this is desirable. —To supply an annual report to the Society on the conservation activi- ties of the group and to encourage all Members to be active in this field. 3. As regards the collection and collation of information as mentioned above, it is suggested that the group should undertake studies of various species, not only the rare and local species but also those termed un- common. Such suggested studies include work on the Glanville Fritill- ary (Melitaea cinxia Linn.) on the Isle of Wight; the Heath Fritillary (Melitaea athalia Rott.); the Purple Emperor (Apatura iris Linn.); and the Adonis Blue (Lysandra _ bellargus Rott.). These four species, along with others, need careful conservation studies within the next couple of years, and it would be wise to note details such as population numbers; distribution; rearing in captivity for possible release; distribution of food- plant and its conservation; and advice for future conservation efforts. 4. \|f any Members could undertake other detailed work on_ species needing such a study, would they please contact the group convener as soon as possible giving details. 5. The possible breeding and supply of insects for release relates to the late Breeding Group. Members would rear Lepidoptera for release in suitable localities to repopulate areas with species that have become un- common for some reason. | must here note certain conditions for rearing species for release, and | would be grateful if Members would inform me of any personal efforts in this direc- tion, giving the species they are rearing and the localities these are to be released in. Suitable methods and conditions for releasing bred stock are as follows: A. Augmenting a species by pro- tected breeding of additional speci- mens procured from that same habitat. Such breeding should be done in as near natural conditions as possible. This method is being used successfully with some species includ- ing the Large Copper (Lycaena dispar Haw.) at Woodwalton Fen. B. Putting down of a species in a new area where it has never occurred or from which it has disappeared owing to some detrimental factor such as ploughing up, forestry changes, etc. This is not always successful as it is difficult to gauge all the factors, and micro-climatic or soil factors may be disadvantageous. Whenever such a venture is pro- posed it is well to obtain the interest of the landowner and the County Naturalists Trust, and inform the Natural History Museum at South Kensington, S.W. 7, of what you are doing (Mr Howarth is an AES Member). C. General release of excess bred specimens of common species (e.g., Vanessids). This is a very haphazard business and little data are available on the effect or success of such operations. With species which natur- ally have a wide dispersal it is prob- able that no harm can be done. D. Release of introduced species. AES BULLETIN, VOL. 27 This should be done only with species which are restricted in habitat if any proper records are to be kept and the chance of the introduction spread- ing is to be avoided. Parasites and virus diseases are of course a danger to our native species, which may not be prepared for them, and generally | would advise against any intro- duction of foreign species, or foreign stocks of our native butterflies. The Amateur Conservation Group A newsletter will be sent to each member now and then, and especially when group activities become inter- esting and important projects are suggested. In November of each year an annual report will be prepared with all members of the Group contributing articles. Members should keep the convener well informed of their activities throughout the season, and of their plans before they become active in < diapause) Colour 1 (in larva) control of form 2(in adult) control of yolk deposition; control of sexual variation Moulting, etc. Villth ABDOMINAL GANG IN receptivity Maternal control of diapause BURSICON Circadian FIGURE FOUR control of motor activity Hardening A POLYPEPTIDE and Darkening AN ORTHODIPHENOL ? PERICARDIAL CELLS A TRYPTAMINE ? 1 Eventual decrease in motor activity 2 Stops brain and sub-cesophageal gang. inhibition of phallic nerve Increased - heart rate rate of gut contractions rate of blood filtration control of water loss from rectum Fig. 4. Diagram of some endocrine effects in the insects. (Note: The labrum-frontal ganglion-brain pathway leads to the pericardial cell function by | way of the corpora cardiaca). | OO textbooks there! Well, that’s the ‘big three’ of the glands of internal secretion. But as stated above, there are other neuro- secretory cells, together with their corpus cardiacum equivalents, in the ventral nerve cord, though functions have not been assigned to all of them by any means. Some of the cells seem to be associated with the female reproductive cycle; some with con- ditions of dryness; some show vari- ations in secretory rate in a diurnal cycle. Conversely, a recently dis- covered hormone, Bursicon, has been shown to be produced from the last abdominal ganglion, yet the cells pro- ducing the substance have not been isolated. A diuretic (‘‘water releas- ing’’) hormone has been traced back to the cells which produce it in the last ganglion, but this is an isolated instance. Fig. 4 shows a selection of the endocrine effects so far discovered. The diagram, as indeed this article, has been abbreviated and simplified quite considerably, and some rather naughty generalisations made. If you want to find out more about insect hormones, V. B. Wigglesworth’s ‘Principles of Insect Physiology’ will provide a nice generalised account, and V. J. A. Novak’s ‘Insect Hormones’ will give a much more complex, complete and frustrating account. Frustrating because it is only when you start to investigate in detail and depth that you find out just how little is known, and how uncertain is the basis of all the lovely theories! In the second half of this article, | will describe some relatively simple experiments which should give food for thought, and also give some idea of how you can do some original research into insect hormones. 9.67. J. F. Vincent (3027). REFERENCES NOVAK, Y. J. A. (1965). Insect Hormones. Methuen, London. WIGGLESWORTH, V.B. (1965). Principles of Insect Physiology. 6th edn. Methuen, London. FEBRUARY, 1968 AN ECOLOGICAL APPROACH TO LIGHT-TRAPPING—5 Weather Relationships In previous articles (Bull. amat. Ent. Soc., 25: 29-31, 65-7, 134-5), attempts were made to isolate factors which affected the quantity of insects caught in a light-trap. This section makes no such attempt but tries to give an idea of the overall situation. Weather conditions, which were recorded simply in terms of either the presence or absence of cloud, rain, snow, fog or moon, were divided into seven distinct categories, as shown on the histograms (Figs. |-8). Since these five terms were accom- panied by more important changes in the physical environment a table has been constructed to illustrate them (Table |). The Orders of insects have been classified into groups (see Table 2) according to their reactions to the factors listed. The majority of insects, which have been classified into the first group, preferred to fly on either very cloudy or extremely clear nights. Weather stability, that is the continuation of prevailing conditions, would appear to be important, for far fewer insects flew on moonlit nights interrupted by cloud than would have been expected from the results of the two factors alone. Group Ib was less definite in its second choice of ideal weather, but this was probably due to insufficient material collected in the samples. First choice was mainly governed by temperature: for instance Psocids, with the highest temperature thresh- old (Bull. amat. Ent. Soc., 25: 29), only occurred when there was an effective cloud cover after a hot day. When stability of the animal environment was disrupted for in- stance by short intervals of rain, flying activity was drastically reduced. Smaller species of Psocoptera, Ephem- Qik Ica) eo ar {oc een CI Soon ao myo ia) ee , a hss A} percentage of total appearance “AES ; Figs. BUEEETIN,- VOL. 27 |. Hemiptera 5. Hymenoptera 5O SO 0 A ; iz : O Sea fa Ei z /00 400 2. Psocoptera 6. Ephemeropterad 5O O Mee ioll fl ana /0O /OO 5. Neuroptera 7, Coleoptera 50 5O Mell Bai /00 /00 4. Lepidoptera g. Trichoptera 50 50 ane 3a] @ mM weather ree Cale) 330] a me) 1-8. Appearance of the different Orders in relation to weather conditions. Key: c = cloud; s = snow; m = moon; r = rain; f = fog. 19 20 Factor cloud moo light intensity Ss ais visibility == ate temperature + 0 humidity =F 0 damage 0 0 stability FEBRUARY, 1968 __ fog rain snow ale ar “he 0 + + —»> decrease Table |. Effect of weather conditions on environmental factors. Group la: lb: Ephemeroptera, Coleoptera. Group 2: __ Trichoptera. Hemiptera, Psocoptera, Neuroptera, Lepidoptera, Diptera, Hymenoptera. Table 2: Groups of insects according to reactions to environmental factors. eroptera and Hemiptera tended to rest under these conditions, but larger, stronger insects like beetles and caddisflies continued flying, perhaps protected by their specialised cuticle. Both types of insect have produced an effective water-repellant surface, although they have achieved it in entirely different ways. Beetles | have the body surface strengthened and streamlined, while caddisflies have their bodies covered with an irregular coat of hairs to prevent water-droplets from adhering. Any increase in the amount of rain further reduced the number of insects flying, although this did not apply to caddisflies which preferred these conditions. It is interesting that these aquatic insects sometimes have a pattern of behaviour which includes laying eggs below the water-surface, again indicating their indifference to this medium. Insects were never captured in extremely bad weather such as fog or snow for two principal reasons. Firstly, the visibility especially in fog was reduced to a level below which the light source ceased to be an attraction; and secondly, snow particles caused severe damage to any insects flying. This latter view is in keeping with the idea of aerial stability. Another factor which tends to reduce stability and obstruct insect flight, but which has not been discussed here, is the presence of wind currents. The picture obtained, then, is of a temporary environment, the insect population of which is dependent on its stability. J. S. Badmin (3406). 16.8.67. REFERENCES BADMIN, J. S. (1966a). Bull. amat. Ent. Soc., 25: 29-31. An ecological approach to _ light-trapping—2. Temperature relationships. (1966b). Bull.. amat. Ent. Soc., 25: 65-7. An ecological approach to light-trapping—3. Wind relationships. (1966c). Bull. amat. Ent. Soc., 25: 134-5. An ecological approach to light-trapping—4. Pressure. HAMMOND’S BOX At a recent meeting of the South London Entomological Society, a small box was passed round which had been used for posting delicate specimens. After the box had been thrown in the air several times and caught by clapping loudly between the hands the box was dropped from a height of about three feet on to the bare table in front of the chairman. On opening the box the specimen pinned inside—a syrphid fly, Volucella pellucens Linn., caught as long ago as 1932—was found to be still intact. This was made possible by suspending a smaller box inside a larger one, on two rubber bands secured by screw- eyes and long paper fasteners as shown in the figure. The rubber bands should be under slight tension and adjusted by experiment. Mr C. O. Hammond, who made the box, has had it posted forwards and backwards on many occasions without damage to the insects enclosed. AES BULLETIN, VOL. 27 2\ iy ‘V; AY : KS FOOT | PNY ‘Hammond’s Box’ DISTRIBUTION OF FINNISH Pieridae, Lycaenidae and Hesperiidae. INSECTS—I: BUTTERFLIES The scientific names used here adhere to Gullander’s system. Reference is Part Two made to Part One of this series (Bull. amat. Ent. Soc., 26: 119-26), in which In this second article on butterfly the distribution zones represented by distribution are included the Families abbreviations in the lists are shown 22 FEBRUARY, 1968 the first article. A further table is included here to indicate those | species which are endemic in Scandin- on a map of Finland. It is unnecessary to show graphically the south-north decline of numbers of species. Suffice it to say that they follow the general pattern of the families discussed in Fam. Lycaenidae Everes argiades Pall. Cupido minimus Fuessly. Plebejus argus Linn. P. idas Linn. and ssp. lapponicus Gerh. P. optilete Kn. and ssp. cyparissus Hb. Polyommatus icarus Rott. and ssp. septentrionalis Fuchs. Celastrina argiolus Linn. Aricia nicias Mg. (=donzelii B.) ssp. septentrionalis Krul. A. agestis Schiff. (=medon Esp.) Eumedonia chiron Rott. ssp. borealis Whlgr. Agriades glandon Prun. Cyaniris semiargus Rott. Lysandra amandus Schn. (=icarius Esp.) Philotes vicrama Moore. (=baton auct.) ssp. schiffermulleri Hemming. Scolitanides orion Pall. Glaucopsyche alexis Poda. (=cyllarus Rott.) ssp. schneideri Strd. Maculinea arion Schiff. Thecla betulae Linn. T. quercus Linn. Strymonidia pruni Linn. S. w-album Kb. Callophrys rubi Linn. and ssp. nordlandica Strd. Palaeochrysophanus hippothoe Linn. and ssp. eurydice Rott. ssp. stieberi Gerh. avia, but are not represented in Finland. Habitat: On wing: Rare, in meadows. 2 broods. Jun-Aug Dry meadows. May-Jun Heathlands and pine-bogs. Jul-Aug Meadowland. Jul-Aug Northern ssp. Pine-bogs. Jul-Aug Northern ssp. Meadowland. Jul-Aug Northern ssp. Meadows and bushy copses. May-Jun Localised, open sunny places. Jul-Aug Meadowland. Jun-Jul (May be A. allous G.-H — P. W. Cribb) Meadowland. Jun-Jul Rare, fells above tree-zone. Jul-Aug Meadowland. : Jun-Jul Meadows and decid. woods. Jun-Jul Rare, heathlands and Jun-Jul sunny sandy areas with Thymus serpyllum. Rocky country. May-Jun Meadowland. Jun-Jul Dry, sunny places with Jun-Jul Thymus serpyllum. Decid. wood borders, and Aug-Sep gardens. Oak woods, usually high Jul-Aug in the trees. Wood borders and bushy Jul-Aug copses. Rare, copses and gardens. Jun-Jul Woods and their borders. May-Jun Northern ssp. Meadowland. Jul-Aug Sometimes in south. Northern and central ssp. AES BULLETIN, VOL. 27 23 Table 4: Distribution in the Lycaenidae. —l s ae 10 5 ee ia Geo 22 Zils 2i2 22 \G = P. optilete PKS KEK KEI OX KEI I KT EI KS NK LK | 9K P. icarus EXO KE | XG | EK, Ka [ie eK KEL LK INI KE I IGT OE 2x C. argiolus PG EEX ET Ke IGE EK. OK OK I |NIC NE KEI. 1: [Poe x C. rubi KIX KG EX EK EK KEK Ke KKK | HIS C5 -P. hippothoe TNE a KEN ICE KIC Ks BIG IK XT KEK 5 P. idas GFX XK XS KK KK LK EK Oe EXE 2? L. helle eM XX XE IK FE KO IGE EXO O IT KGS Xx A. agestis GX XG Kt Oe Kee AK KY EN Le KK | Kee L. phlaeas Kime XX KEKE 2 XE DOE KU KN Ke XG KOKA el Mel ox E. chiron Ke XXX | XK KK XK OR EK IT OE ee P. argus GOK XK EKA SKI TE KK IE] SIE ES UII ee has 'C. semiargus KEK KNX |X KAM SEEK KS KE PIS Xe | ce SK cs H. virgaureae XG KS KX. OX EK I RK KI KI HESS I _L. amandus eX KK KK IK Kal. Ke Ke ee ee ee T. betulae x XX KX XIX X X XIl—-.-> X -l- -[- -|-|/- = -C. minimus x Xx X = X{[—- xX x Xf- - = -f|- -|- -|-]x = E. argiades - —- X X =-J—- = = =-J- = = =] - -f- -J-t]e- = _T. quercus Xx X —- = =Jf—- = = -f- = = =-Jf- -J]- -J|-|- =| S. w-album - X = - -{- - = -/- - = -J- -J- -J-]- - G. alexis SX OX KOK CK | Ke ep KK eee A. nicias x X X X X{|X xX —- X}/- xX xX xf- Pf - -};-]- - M. arion - xXx X xX x{/- x x xf/—- 2? x xf- -|- -[-|J- - S. pruni = xX X X X|xX Xx XX X}- - =- xXJ—- -f- -J[-l- - -P. vicrama -- - X xX}|x x x -J|- - = xJ/—- -/- -J-J]- - -S. orion =EexXe XK X= t= OX KX |= — Soa eS pa Se ae A. glandon So Ss Sle Ss Sele Ss Siete vey a Giraiss. os Total in area: 17 23 22 22 21 {19 22 21 21 |I5 16 18 19 |I5 14 |I13 10 113 10 7 ‘Total in Lat. block: 25 22 20 15 13 | 13} 10 Lycaena phlaeas Linn. Meadows and dry country. Ist: May-Jun 2nd: Jul-Aug -and ssp. polaris Courv. Most common northern form. L. helle Schiff. Damp meadows. May-Jun | (=amphidamas Esp.) ssp. lapponica Backh. -Heodes virgaureae Linn. Meadows and wood borders. Jul-Aug vand ssp. oranula Frr. Northern ssp. Fam. Pieridae ) Habitat: On wing: ‘Aporia crataegi Linn. Wood borders, and gardens. Jun-Aug Pieris brassicae Linn. Fields and gardens. Ist: Jun | 2nd: Aug P. rapae Linn. Fields and gardens. Ist: Jun | 2nd: Aug P. napi Linn. Fields and gardens. ist: May-Jun 2nd: Jul-Sep Pontia daplidice Linn. Occasional; sunny terrain. Ist: May : 2nd: Jul Anthocaris cardamines Linn. Meadows and fields. May-Jun Colias palaeno Linn. Especially in pine-bogs. Jun-Jul and ssp. lapponica Stgr. Northern ssp. Still active: Aug _C. nastes Boisd. Rare, on fell-slopes. Jun-Jul “ssp. wernandi Zett. C. hecla Lef. Rare, on fell-slopes. Jul-Aug ‘ssp. sulitelma Auriv. 24 FEBRUARY, 1968 C. croceus Fourcr. Occasional southern species. Aug C. hyale Linn. Occasional, meadows and fields. Ist: May-Jun | 2nd: Aug-Sep Leptidea sinapis Linn. Meadows, and wood borders. | Usual: May-Jun Occasionally: Aug-Sep | Gonepteryx rhamni Linn. Wood borders. Jul-Sep After hibernation: Spring Fam. Hesperiidae Habitat : On wing: Heteropterus morpheus Pall. Rare, damp meadows. | Jun-Jul Carterocephalus palaemon Pall. Wood borders, lake-beach Jun-Jul meadows. ssp. borealis Lgbl. C. silvius Kn. Meadows and wood borders. Jun-Jul Adopaea lineola Ochs. Hills and edges of fields. Jul-Aug. Ochlodes venata Brem. & Grey Meadowland. Jul-Aug Hesperia comma Linn. Hilly country. Jul-Aug and ssp. catena Stgr. Northern ssp. Pyrgus malvae Linn. Meadows and field edges. May-Jun P. centaureae Rbr. Pine-bogs. Jun-Jul P. alveus Hb. Dry hilly country. Jul-Aug P. andromedae Wallengr. Fells and higher birch forests. Jun-Jul Table 5: Distribution in the Pieridae. | = = 25 LAO O aoe S54 JIGS 3022 Zee 2 Veo P. brassicae Ky EK, Ke KK IK LG GE ea EEE OCS XK | P. rapae I OTITIS ce Ee SS KCI XTX P. napi ya Gee. >, Gn ella Gu, Sie i>, lle? Gua, Ger, Ga lle >.< | DME SC C. palaeno XL KEKE KD KI EKG |i ell x Gatice | xa oe a G. rhamni > ie a, Gi. Gam Gll >, Gam Gan 4a i> Gly aa Glin aajinp.¢ SO Oe A. crataegi KH Ky YP KK KL ICE RL EG |e |e A. cardamines > a Gia i> nl i>, Gli, GIR» Gat 4 o>, Gee SEED Givin > all Ge = S89) L. sinapis > a> Sn GD Gant. lly SLD > Gano Gal IND GIR nD, GAO i> Gell |S>) SSSI SF obra | C. hyale Xx xX X KX KIX KOK XxX |XX = KX =! = doe =) | ee P. daplidice - x xX X X/xX xX x -|- x - -|x -]J;- x]}/-]- - C. croceus Me RU Seba a C. hecla a od ee en De > Gi < C. nastes — =< 6 =.2)[= = = =) -SS (24 2S SS Sx Se Total in area: 9b Uh WTO) LOM tON 69" 9710; \8i49 5 eoeees hoon ece lomo Total in Lat. block: II II 10 9 LOR a ley, 7 Table 6: Distribution in the Hesperiidae. A Vv U SK Ki St SH SS LK SO NH NS NK MO Kn P. malvae x C. silvius = O. venata x . alveus x . lineola x x comma palaemon . morpheus ~ . centaureae me . andromedae - Total in area: 5 Total in Lat. block: YR RK RUM 1X * KK XK XK 1 XK XK K XK VUITOLPYD m!lxi x K XK XK XK K XK Ol xX I XK K XK K K OK OX mlx i XK XK XK K KK XK mil xX 1 XK K K K XK XK O&K MIX 1K 1K KKK MIX 1K 1K KKK XK NIK 1K I KK XK XK XK MI KX 1 KK IK KK XK “Nl TT Se OO! K K KK OK OK KOK OX oO oa ParKxIXxIKIXX®™ NN! XK I xX I mes BULLETIN, VOL. 27 25 Table 7. North-European species absent from Finland. Agapetes galathea Linn. Hipparchia alcyone Schiff. (ssp. norvegica Strd.) Pyronia tithonus Linn. Limenitis camilla Linn. Araschnia levana Linn. Mellicta parthenoides Kef. M. britomartis Assm. Nemeobius lucina Linn. Strymon ilicis Esp. Heodes tityrus Poda. (ssp. acrion Brunn.) Maculinea alcon Schiff. Lycaeides argyrognomon Bergstr. Albulina orbitulus de Prun. Lysandra dorylas Schiff. Iphiclides podalirius Linn. Erynnis tages Linn. Pyrus serratulae Rbr. P. armoricanus Obth. Adopaea flava Brunnich Some considerations Plotting the distribution, range, or dispersal, etc., of species of insects can be a fairly straightforward task. We need arm ourselves only with some instrument by means of which to capture specimens of interest, with enough information to be sure of identification, and with a map and a ' notebook to enable us to record our finds. Immature stages are recorded _in the same way as the adults, whilst /a certain proportion of the adult catch is generally retained for reference purposes. Having set about the study in this way, we have gained, over some years, -a certain knowledge of insect distri- bution. The fact that we also collect specimens simply because we enjoy collecting them is a matter for the psychologists. It is only likely to be of consequence to those of similar interests if we set off once yearly for the British haunts of such insects as the Large Blue Butterfly (Maculinea arion Linn.), in the form of a ‘vacuum- cleaner in entomologist’s clothing’. We do not do this, of course, if we also like insects. — Work of the kind mentioned in the first paragraph is extremely useful. Denmark. Norway Denmark. Denmark, south Sweden. Denmark. Sweden (?). Sweden. Denmark, Sweden. Denmark, Sweden. Denmark. Denmark, Sweden. Sweden, Norway. Sweden, Norway. Denmark, Sweden. Denmark, Sweden. Denmark, Sweden, Norway. Denmark. Denmark, Sweden. Denmark. Without the notebooks of amateurs, textbooks would involve their authors in years of intense study over an almost impossibly vast area, and would probably be thus prohibitively priced. As it is, an amateur is able to devote his spare time to making an intensive, personal study of a res- tricted area, often over two or three decades. The result of this field-work is a knowledge of the following aspects of the biology of each species studied: a. Its distribution within a certain area—usually representing only a part of its total range. b. the sub-habitats in which its life- cycle is enacted. c. the dates of its appearance in its various stages. Perhaps inadvertently, an insight is also gained into the following: d. The distribution of the foodplants (or other food material) of the growing stage. e. the distribution of the food- sources of the imago. f. terrain preference differences in allied, and in distantly related, forms. . the influence of the weather, and of light-values, on activity (see, 26 e.g., Badmin, in Bull. amat. Ent. Soc. 24: 23-4, etc.) This is the sort of knowledge | spent several years gathering in the British Isles. On my entering new pastures in which there are few entomologists, however, it was clear that my distri- butional studies would have to extend deeper than hitherto if | was to make a serious attempt at providing some solutions to the many queries which have been the end-points of previous research in other parts of the globe. | chose to begin this series of articles with the butterflies for several reasons, not the least of which, | confess, was my own interest in them. The first stage of the work has been completed, and is presented in these two articles. It consisted in = obtaining copies of the recent text- books and extracting from them the details of the broad distribution (over some 325,000 sq. km. of land surface) of butterfly species. In the process of doing this, three problems presented themselves to me. Firstly, Finland, unlike Britain, is not conveniently surrounded by a natural ‘fence’, the sea, which prob- ably forms a barrier to the dispersal of the majority of insect species in the British Isles. Finland adjoins the U.S.S.R. to the east, Norway to the north, and Sweden partly along the western side. The marine waters of the Gulf of Bothnia and the Gulf of Finland form only a partial barrier to dispersal, this being continuous on the western, south-western and southern sides. Ahvenanmaa and its associated islands, although surround- ed by water, do share a number of species with the southern part of the mainland. Secondly, the information imparted in the most recent work of national importance (Gullander, 1959) is not really so up-to-date as one would like it to be. FEBRUARY, 1968 Thirdly, | have yet to discover the | basis for the division into the so- called ‘‘Natural historical areas of Finland’’ (see map, Bull. amat. Ent. | Soc. 26: 120). They do not correspond to the published climatic, geological | or vegetational patterns; neither do they relate exactly to rural commu- | nes. Again, these areas are of varying sizes and are all too large to be of any | great use as actual distribution indica- tors. Each species is simply recorded as being either present in, or absent | from, each area. The notes given by | Gullander on habitat preferences, however, enable one to narrow down the areas to a certain extent. Unfortu- | nately, the cost of buying a complete | set of the local |:20,000 maps would be very high, and it is only on these maps. that individual forest and swamp types, lakes, altitude, agri- } cultural areas, and so on, are marked. It is necessary that | should gather further information in order to be able to represent specific ranges by a series of dots, rather than by a smaller number of “‘covering’’ areas of great expanse. | am _ working through the periodicals indicated under ‘references’ as well as covering as large an area as possible during my field activities this season. Whilst it is a fairly easy task to build up in this way a comprehensive set of specific distribution charts, it is by no means so easy to isolate the factors which actually govern ranges. This isolation is rendered even more difficult in that, even foodplant dis- tinctions aside, the spread of butterfly species appears to be influenced, not by a single factor or combination of factor values, but by more or less exclusive combinations acting on each species. It is thus essential that a thorough study be made of all possible factors. This means going somewhat further than the limits of the investigations briefly enumerated in the opening paragraph. It entails, AES BULLETIN, VOL. 27 for example, making careful studies of larval foodplants and of other vegetational entities, correlating their dispersal with those of the butterflies. Here again, published facts do not meet our requirements. A com- parison between the distribution of the Finnish species of Satyridae and that of the larval foodplants, using published matter, showed that the plants in almost every case had been recorded as residents of places in which the insects are not known to occur. | hope that something will come of this project because | feel that, having decided that insect species are adapted to their environments, we all ought to try to contribute some- thing towards finding out what factors are instrumental in preventing each species from widening its range. Only when this information has been obtained can those whose task it is to mplement conservation projects in 3ritain be suitably armed. Talk of conservation in Britain, one nay feel, is out of place in an article ourporting to throw some light on the distribution of butterflies in ‘inland. | feel that they are both part of the same sphere. Members read he Bulletin because they are inter- ssted in entomology, and | believe hat conservation is of major impor- ance to those who like insects and vho also gain great pleasure from collecting them. 8.5.67. Leigh Plester (2968). REFERENCES cta Entomologica Fennica: Societas Entomologica Fennica, Helsinki. Periodically. English or German - text. mnales Entomologici Fennici: Entomological Society of Finland, Helsinki. 4 issues annually. English text. atalogus Lepidopterorum Fenniae et Regionum Adia ,.. Centium, |. Macrolepidoptera. Edidit Helsingin ' > Hyonteisvaihtoyhdistys, Helsinki, 1962. quna Fennica: Societas pro Fauna et Flora Fennica, Helsinki. Periodically. English or German text. tonnon Tutkia: Elain ja kasvitieteellinen aikakauskirja. Helsinki. 5 issues annually. Finnish text. lolekyyli: (The Molecule—Science Youth Magazine.) Helsinki. 7 issues annually. Finnish text. otulae Entomologicae: Finnish Entomological Society, Helsinki. 4 issues annually. English text. “hese are obtainable from the Academic Bookstore |) Akateeminen Kirjakaupa), Helsinki 10, Finland.) L.P. 27 BUTTERFLIES IN FRANCE AND SPAIN AUGUST- SEPTEMBER 1966 Last summer my wife and | spent a three weeks’ camping holiday in south-western France and northern Spain. Although this was not primar- ily a ‘butterflying’ trip, my wife’s tolerance enabled me to do a fair amount of collecting. We had no fixed plans but intended to end up on the Costa Brava, although we were in no particular hurry to get there. Leaving New- haven early on the morning of 20th August we arrived at Dieppe at about lunch time. Having passed through customs we set off southwards stop- ping for tea just north of Blois. Here | unpacked my net for the first time. In some scrub land and long grass beside the road | found Arethusana arethusa D and S and Lysandra coridon Poda (Chalkhill Blue) to be common. | was pleasantly surprised to take four L. coridon var. syngrapha Kef. in about five minutes. | also took a couple of Colias hyale Linn. (Pale Clouded Yellow). Naturally | was very pleased with this excellent start to the holiday. We spent the night just south of Chateauroux, being then on the N20 which we subsequently followed right to Andorra. Early next morning we ran into quite thick fog which did not clear for some time. By midday we were just north of Cahors and decided to stop for lunch. | had a look round, again L. coridon was common and much to my amazement | caught a further five var. syngrapha. | do not know if this var. is very much more common in France or whether | just picked two lucky sites. Small fritill- aries abounded and | noted five different species in one small field, namely Melitaea didyma Esp., Melitaea phoebe Schiff., Mellicta deione Gr., = ; § & Mellicta parthenoides Kef., and Clossiana dia Linn. | also caught a very nice abberation of M. deione. Hesperia comma Linn. (Silver Spotted Skipper) was quite numerous. We continued south that afternoon spending the night just outside Aix-les-Thermes almost at the foot of the Pyrenees. Next morning while we waited for the dew on the tent to dry before striking camp | saw a number of Brintesia circe Fab. and took a specimen of Hipparchia alcyone Schiff. As we drove through Aix-les- Thermes we were surprised to see a number of people with their feet in what looked like a large paddling pool in the main square. What amazed us most was the steam rising from the water. The significance of the name of the place then dawned on us and we realized that this must have been hot water from a natural spring. The road up the mountain was very impressive. We traversed back and forth and always upward, and some of the views were quite breathtaking. The road signs warning against ‘Troupeaux’ were fully justified. The big tawny cows, heaven knows what breed, just stood in the road while the line of cars and lorries had to weave its way between them. Having passed through the customs and filled up with petrol at the battery of pumps right at the top of the pass, petrol in Andorra being almost a gift after the high French prices, we stopped to admire the view down into Andorra and to give the car a breather—to say nothing of the driver. A number of smallish brown butterflies were sighted and amongst them some that looked almost purple. These proved to be all the same species, Erebia cassioides Hohenwarth., at first sight rather a dull butterfly but at certain angles the wings have a beautiful purplish small stream (Ribera Salada) | caught FEBRUARY, 1968 sheen. We stopped for lunch in Andorra. Polyommatus icarus Rott. (Common Blue), L. coridon and Aglais urticae Linn. (Small Tortoiseshell) were common. | also saw a couple of specimens of Lysandra bellargus Rott. (Adonis Blue) and one rather battered Mesoacidalia charlotta Haw. (Dark Green Fritillary). On leaving Andorra we decided not to drive straignt to the Costa Brava but to see a bit more of Spain first. Instead of driving westward to Puigecerda we therefore set off southwards on the main road to Lerida. After some fifty kilometres we took a more minor road going east. While stopping for tea beside a a nice specimen of Limenitis anonyma Lewin and a couple of Everes argiades Pall. (Short-tailed Blue). We camped for the night by the Rio Cardonna just outside the town of the same name. It was a poor spot for butterflies, although there were a few Lysandra hispana H.-S. about, so | tried my hand with a fly rod. | did not raise a thing and in fact saw no sign of fish at all in the very fast water of the river. Next morning we packed up again and moved on through Suria and Belsareny. | am giving the names of the towns so that readers with suitable maps can plot our progress. The weather was beautiful and after a few brief stops to pick black- berries my wife and | decided we had had enough of the car for a bit and that we should make the best of the sunshine. Naturally | made sure that we stopped in what looked like a good place for butterflies. The country was hilly and wooded with clearings and small terraced fields. Even before we had stopped the car | had spotted vast numbers of Leptidea sinapis Linn. (Wood White), which AES BULLETIN, VOL. 27 were literally everywhere flitting between the trees and in the small fields. | have never seen so many any- where before. | took those | wanted by simply netting those that came within range while | sat in the sun eating my sandwiches. Fritillaries were common in the fields and | saw M. didyma, M. phoebe, M. deione and -C. dia, and also a couple of specimens of Issoria lathonia Linn. (Queen of Spain Fritillary). ‘Blues’ were also numerous, mainly L. hispana and P. icarus but | ‘also saw one Lampides boeticus Linn. | (Long-tailed Blue) and took two ‘female Agrodiaetus damon _ Schiff. Erynnis tages Linn. (Dingy Skipper) was quite numerous. Colias australis Verity (New Clouded Yellow) and C. )croceus Fourcr. (Clouded Yellow) were also taken. By mid afternoon we had set off again, having driven through Vich we took the road to San Hilario. We ‘soon found ourselves climbing up and up once more. The road was literally cut into the side of the mountain and the drop at the edge was rather alarming, especially as the road was not very wide and we were con- stantly expecting a large lorry to come tearing round the corner in front of us. A number did but fortu- nately we managed to squeeze by on each occasion. Having reached the top the terrain levelled off a bit and the downward road was nothing like sO steep or spectacular. We drove through a delightful open valley and decided to stop for the night. Next morning we found our surroundings so attractive that we , agreed to stay for the day. There were a number of very worn Argynnis paphia Linn. (Silver-washed Fritillary) ),and Fabriciana adippe Rott. (High »Brown Fritillary) about and Vanessa cardui Linn. was also quite common. ,| saw a couple of rather battered ) specimens of Agapetes lachesis Huebn. 29 and also a couple of Hipparchia semele Linn. (Grayling). ‘Blues’ were not numerous but | took specimens of three skippers, Pyrgus cirsii Rambur, the smaller Spialia sertorius Hoffmansegg., and H. comma Linn. | also took one Papilio machaon Linn. (Swallowtail) and one Iphiclides feisthameli Dup., the only Papilionids | came across during the holiday. Next morning the weather was cloudy and threatening rain so we moved on to the coast. Going via San Hilario, Gerona and Parafrugell to Tamariu, we arrived about midday and set up camp. We spent two and a half days in Tamariu. Except for one sunny morning the weather was cloudy and we had two mammoth thunderstorms. | did not do much collecting, except on the sunny morning. M. didyma and M. deione were quite numerous as were the ‘Blues’ Syntarucus pirithous Linn. and P. icarus, | also saw a few specimens of L. boeticus and took a couple of the skipper Carcharodus alceae Esp. and one of Gegenes nostrodamus Fab. C. croceus and Pararge aegeria Linn. were common and Hipparchia fagi Scop. were quite numerous. As the weather was still bad on the third day we decided to _ leave. Neither of us had previously been to the Atlantic coast so we thought we would work our way across. After studying the map it appeared that the roads in France were better than the Spanish ones, so we set off to recross the Pyrenees. This time we went by the more direct route Gerona, Banolas, Olot, Ripoll and Puigcerda, nothing like so attractive as the way we had come but much quicker. When we crossed into France we did not take the N20, but the N16 to Mont Louis and then the NI 18 to find a large lake which we had spotted on the map as a potential camping place. We arrived as dusk was falling and 30 pitched our tent right beside the lake which turned out to be a huge reservoir. Despite the fact that we were at more than 5,000 feet the next day was hot. Erebia neoridas Boisd. was very common and | also caught a few specimens of the copper Heodes virgaureae Linn. and one I. lathonia. That evening the clouds came down over the mountains and completely enveloped us. Next morning dawned sunny but it was very much colder. By mid morning however dark clouds had begun to gather and by lunch time it had started to rain a hard, cold, driving rain that looked as if it had set in for the day. We therefore struck camp and set off to descend the Pyrenees on the French side. Coming out of the mountains at. Axat we travelled westwards stop- ping for the night at Foix, a most attractive town. Next morning was still wet and we continued through Tarbes, Pau and Bayonne. By the time we had reached the Atlantic the weather had begun to clear but the sea was very rough and bathing was forbidden on all the beaches we could find. By now it was getting late so we took a side road inland to find somewhere to camp for the night. The following day dawned clear and sunny. It was Ist September and we only had nine days of our three weeks to go. On studying the map we found that we were very near the Spanish border. A quick count down on our finances persuaded us that back into Spain was the place for us. We could have almost two days in Spain for the price of one in France, or so my wife informed me. We crossed the border at a tiny frontier post on a little back road feeling very mean as we had to get the single Spanish guard away from his breakfast and he had to chase the chickens away in order to lift the barrier. Once in Spain the road dropped FEBRUARY, 1968 sharply and we arrived at the delight- | ful little town of Vera. From here we headed towards Irun and the coast, the road following the river Bidasoa most of the way. It was while we stopped briefly on the river bank that | took a specimen of Araschnia levana | Linn. This may be a very interesting |: capture as | see that R. F. Bretherton (1966) in his ‘Distribution List of the | Butterflies of Western and Southern Europe’ while referring to this species says it is “‘not yet certainly known from Spain’’. This specimen was certainly taken in Spain, although only just. We drove through Irun and the smaller Fuenterrabia and out on to the cliff top. Having found a secluded spot to camp in the pine trees, we were so enchanted by the sea, cliffs and the little beaches that we spent the next four days here. Except for one day when we visited San Sebastian, the weather was good. While my wife sunbathed | did quite a lot of ‘butterflying’ along the cliffs. The ‘Blues’ were the most numerous, and of these Everes argiades was very common and | took one specimen of E. alsetas flying with it. L. boeticus was also quite numerous as was P. icarus. A number of other species were common especially C. croceus, Maniola jurtina Linn. (Meadow Brown) and E. tages. | was pleased to take a few specimens of that attractive satyrid Minois dryas Scop. which must have been pretty well at the edge of its range. | also found the small dark copper Heodes tityrus Poda and took a single specimen of Pararge maera Linn. In addition Vanessa atalanta Linn. (Red Admiral) and I/nachis io Linn. (Peacock) were seen. Starting on our way home we spent two days on the coast north of Bayonne between Hossegor and Vieux-Boucau—not a good place for butterflies, being mainly sand and pine trees. L. boeticus was, however, AES BULLETIN, VOL. 27 very numerous. We spent our last day in France in the Loire valley. Then it was back to England until next year’s summer holiday. 16.1.67. M. J. Perceval (3798). REFERENCE F. (1966). Trans. Soc. Brit. Ent., pecs List of the Butterflies Pie) of Western and Southern Europe. ee TON. 17: 1-9 JUNIOR NEWS SECTION | expect you will be reading this while the winter snows blot out all memories of last summer’s sun and ‘the pleasures of insect treasure hunts. Have you planned anything special ‘for next season? | always find that planning my summer expeditions -makes the bad weather of winter give -way to the bad weather of summer much quicker. | had very interesting accounts of last Whitsun’s Teen International Entomology Group New Forest cam organised by Rob Dransfield (3492J). near Brockenhurst, Hampshire. The group was able to find many of the insects they wanted and by camping had the great advantage over Youth Hostelling (which | prefer) in that they were able to collect moths at night. The camp site unfortunately proved to be a little boggy but this was compensated for by everyone having a jolly good time and a successful! trip to the Isle of Wight in search of the Glanville Fritillary (Melitaea cinxia Linn.). A further Teen International camp was arranged during July where one of the inter- esting insects caught was said to be \the rare pallida variety of the Small Skipper (Thymelicus sylvestris Poda). - On /7th August Rob Dransfield and council member Ron Allen, of 26 3| Burnside Road, Dagenham, Essex, set off for a cycling expedition from Dieppe to eventually reach the Ardennes on the east Belgian border. They reached Aunale at about 12 o'clock, on a—by then—fine sunny day and found one field there where butterflies abounded. There were Pale Clouded Yellow (Colias hyale Linn.) and Chalkhill Blues (Lysandra coridon Poda) as well as other ‘Blues’, Skippers and commoner species like the Brimstone (Gonepteryx rhamni Linn.). After camping at Amiens the explorers pressed on into the Valley of the Somme where flies were plentiful but very few interesting Lepidoptera apart from a_ large unidentified Nymphalid which man- aged to duck the net, and a dwarf (?) Green-veined White (Pieris napi Linn.). Further on near Estrees a clover field was found covered with Clouded Yellows (Colias croceus Fourcr.) and Peacocks (Nymphalis io Linn.). The night was spent in the barn of a very understanding farmer just outside Homblieres, near St Quentin. (Why doesn’t school French match that they speak in France?) On Wednesday, heading for Eteigneres, our friends found quite large numbers of butterflies and flies on the umbellifers. Of particular interest was the European Map Butterfly (Araschnia levana Linn.), which at first glance looked very much like the White Admiral (Limenitis camilia Linn.). After having met light rain the duo became drenched as they ran into violent thunderstorms in the Meuse valley. The weather did not really improve when they finally made camp just north of Revin in the Ardennes. Rob caught two further species of ‘Copper’ and several Fox Moth larvae (Macrothylacia rubi Linn.). The 13th was his lucky day when near 32 Hautes Buttes in the mountains he netted a perfect specimen of the Camberwell Beauty (Nymphalis antio- pa Linn.) as well as finding a field full of ‘Coppers’ and a single Pearl- bordered Fritillary (Argynnis selene Schiff.). On the same day in an orchard near Montherme he caught a continental Wall Butterfly (Pararge sp.). At night the flowers surrounding the camp site held large numbers of Noctuid moths. One sweep brought in eight or nine at a time. On the [5th, on the return to Amiens, the first Swallowtail (Papilio machaon Linn.) was seen but not taken. The two boys split up at Amiens and Rob turned towards Paris for a spot of sightseeing. On the way he did manage to catch a rather battered male Swallowtail and later a female which laid only two eggs. He just missed catching a Long-tailed Blue (Lampides boeticus Linn.). On the way back to Dieppe the weather was glorious and although it was by now rather late in the season large numbers of ‘Blues’ were seen on a hill near Meulon including the Silver-Studded Blue (Plebeius argus Linn.), the Small Blue (Cupido mini- mus Fuessl.) and a few Adonis Blues (Lysandra_ bellargus Rott.). A_ field further on also proved to be filled with ‘Blues’ and Clouded Yellows including the light var. helice variety. These together with the Pale Clouded Yellow were abundant everywhere. The only different species encounter- ed on the way back to the coast was the Holly Blue (Celastrina argiolus Linn.)—on, believe it or not, Holly (Ilex aquifolium Linn.). Rob concludes by saying that it was most noticeable how similar the species around Paris are to ours at the same time of the year while a totally different group was found in the Ardenne mountains. His only other comment was on the roads of Northern France. They are not made FEBRUARY, 1968 for the cyclist, even if he did have a’ most enjoyable holiday. . | have been so long talking about collecting in the summer sun of northern France that | almost forgot to congratulate those of you who did so much to make last year’s AES Annual Exhibition such a wonderful success. There were so many really good exhibits. It was most difficult for the Council members to choose those which deserved special prizes. These went eventually to A. Lucas (3934J) for his “Survey of Happy Valley’’, and to D. V. Lewis (3963J) for his “‘Common Moths of North Wales’’. | was glad | did not have to choose. Two organised groups put on a good show: the Teen International and the Silkmoth Rearers’ Group. | was particularly pleased to see Miss Barbara Brent exhibit ‘‘British Moths’’. It’s time more girls came forward to show the boys they can also take an intelligent interest in Natural History. | also found the joint venture which M. S. Collins (3975J) helped to produce—‘‘A family tree of Coleop- tera’’—very refreshing. (Anyone would think that butterflies were the only insects in the world. | like beetles myself). If any of you live within striking distance of St Ives, Huntingdon, and have difficulty in getting to the AES Exhibition why not get in touch with St Ivo School. You could come with us. | really must come to an end pretty soon as we are short of time and space. | did just wonder how many of you are helping with the recording of common insects for the Nature Conservancy. They need records of butterflies, moths, dragonflies, grass- hoppers, weevils and even spiders. If you can’t help with the records— help by not over-collecting. By the way, can anybody help me AES BULLETIN, VOL. 27 33 with the whereabouts of some of these animals. Do you find the Gum- spitting Spider (Scytodes thoracica -Latr.) roaming the walls of your house? It is quite small (about a quarter of an inch in length) and _ beige and black in colour. It does not use silk to catch its prey, but shoots gum very accurately at flies and other insects which settle too close. Another spider | would like to hear about is the very rare black and Yo if” RS, = SS PRR ae oe 3 y-4 SE BL: — oe ff ae - f~ oie SSs = eee A ee ee See A ee ae NOTES AND OBSERVATIONS GNATS WITH AN ANTENNA FOR MUSIC Quite often, while perusing litera- ture outside my own immediate spheres of study, | discover an item which interests me not simply as another piece of scientific knowledge, but rather as a novel piece of infor- ‘mation easily recalled to mind for a long time afterwards. Such an item appears in Annales Zoologici Fennici (1966), in which scarlet Eresus niger Petana. Are they as rare as people say? Does anyone know of Stag Beetles (Lucanus cervus Linn.) being found north of the Thames valley or of Swallowtail Butterflies anywhere but Norfolk (I do not want the exact spot)? Early records will be welcome this year. Very best wishes for the New Year. H. J. Berman, F.R.E.S. (2941A). The Gum-spitting Spider (Scytodes thoracica Latr.) Jaakko Syrjamaki reports his obser- vations on dusk-swarming in Chirono- mus pseudothummi Strenzke. These observations were made at the Lammi Biological Station, South Finland (61 ° 03’ N; 25° 03’ E.), during the late summer of 1965. ‘““One evening, when watching the swarm, | began to hum a Finnish folk-song. As | hummed the first note, the whole swarm abruptly moved down and the nearest swarm- ers flew very vigorously to the vicinity of my mouth. This led me to stop humming, whereupon the males immediately returned to the swarm. The tone sung proved to be g (i.e., 34 about 200 vibrations per second) as determined with the aid of a piano- forte in the nearby home of the janitor of the Station.’’ | would be interested to know whether any of our Members have met with similar experiences in the field. Syrjamaki records that the phenomenon has been observed before (Nielsen and Grieve, 1950), but as neither of these observations was made in Britain, if one of our Dipterists is sufficiently interested, he could perhaps perform some original work in the field using, for example, a set of tuning forks. It might then be possible to discover what vibrations attract the males of the various British species, hence to contribute to the knowledge respect- ing mate-attraction in the females. 22.4.67. Leigh Plester (2968). REFERENCES SYRJAMAKI, J. (1966). Annales Zoologici Fennici, 3 (1): 20-8. Dusk swarming of Chironomus pseudothummi Strenzke. (Dipt., Chironomidae). NIELSEN, E. T. and GRIEVE, H. (1950). Bull. Entom. Res., 41: 227-58. Studies on the swarming habits of mosquitoes and other Nematocera. THE CLOUDED YELLOW IN SUSSEX In mid-August 1967, three speci- mens of Colias croceus Fourcr. (Cloud- ed Yellow Butterfly) visited my garden here at Bexhill-on-sea, Sussex. They were seen on several days, and one was an absolutely perfect speci- men, though | did not take it. 16.10.67. G. B. Hodges (314). UNUSUAL FOODPLANTS FOR THE ELEPHANT HAWKMOTH In 1963, | bred a large number of larvae of the Elephant Hawkmoth _ wild in Middlesex.—Ed.] FEBRUARY, 1968 (Deilephila elpenor Linn.), and experi- | mented with different foodplants. To | my great surprise, | found the larvae devouring not only the leaves but also. the succulent stems of the Police- man’s Helmet (Impatiens glandulifera Royle) and the Orange Balsam (I. capensis Meerburgh) with great relish. These plants belong to the family Balsaminaceae, very far removed from the various plants in the family Onagraceae (willow-herbs, etc.) with which one usually associates this species. 28.8.67. Brian Wurzell (3718). [Mr P. W. Cribb reports finding this species on Orange Balsam in the THE GLOW-WORM IN KENT Recently | heard that as this insect seems to be decreasing in numbers recent records were of special interest. In June 1967, | found Glow- worms (Lampyris noctiluca Linn.) to be quite frequent in the Weald of Kent, just south of Knole Park, Sevenoaks. Any half an hour’s walk after dark would certainly reveal two or three females on pathsides and verges, while males regularly came to electric lights, presumably confusing artificial light with the sexually-inviting light of the female. Perhaps the female’s light renders her far more vulnerable to nocturnal predators, not to mention collectors, or even passers- by who cannot resist handling, or displaying to their friends, objects of unique interest. More publicity about the precarious status of the Glow- AES BULLETIN, VOL. 27 worm could do no harm. 28.8.67. Brian Wurzell (3718). THE DEATH’S HEAD HAWKMOTH IN BEDFORDSHIRE On August 2nd this year (1967) | was given a caterpillar of the Death’s Head Hawkmoth (Acherontia atropos Linn.) which was found near some potato plants in an allotment at Bedford. It was ready to pupate and when it was put in a container filled with bulb fibre it soon burrowed out - of sight. The following day another one was found by a friend of mine “near where the first was discovered. These caterpillars are the first of their “species to be recorded in Bedford- shire since 1956. | Terence F. Knight (3190). | | | ® | | | | . ¥ ry ' ; THE SILVER-STRIPED ; HAWKMOTH IN BUCKINGHAMSHIRE ‘In the Bulletin of May 1967 (Bull 1 amat. Ent. Soc., 26: 65) Mr N. Cook ' enquires whether anyone else has (taken Hippotion celerio Linn. (Silver- ‘/striped Hawkmoth) in 1966. That i year was not a good one for the ‘larger immigrant Hawkmoths, but | one or two H. celerio were taken in "the late autumn, though not in i Buckinghamshire. The species is not ‘included in the Victoria County ) History (Part 3, Zoology) published * in 1905, and there does not appear to | be any other record of its occurrence Vin the county. ‘Sir Eric Ansorge, C.S.I., C.LE., F.R.E.S. (2508). fe 35 EUCHROMA GOLIATH CAST. AND GORY Euchroma goliath Cast.& Gory. A large metallic Buprestid found in South Mexico, Central America, Northern South America and in the islands of Jamaica and Granada in the West Indies. It is a well built insect with the elytra deeply sculptured and punc- | &2 oO» tured. The legs, head, and thorax except the disc, are covered in sparse coarse pubescence. The entire beetle is highly metallic deep copper- red and green. A reference to its biology can be found in a paper published by G. Bondar in Correio-agricola in 1926 (unobtainable at the British Museum (Natural History)). | can see no reason why E. goliath cannot occur in the islands between Jamaica and Granada, and Granada, Trinidad and Tobago to the mainland of South America. | would like to thank Mr B. Levey of the British Museum, Natural History for identifying and supplying FEBRUARY, 1968 the information about the beetle. 7 7.8.67. Jonathan Cooter (3290). REFERENCE BONDAR, G. (1926). Correio-agricola, 4: 192-3. A biologia do Euchroma gigantea L. ANNUAL GENERAL MEETING The Annual General Meeting will be held on 23rd March 1968 at the rooms of the Linnaean Society, Burl- ington House, Piccadilly, London, W.1. Further details will be circu- lated to members before the meeting. REMINDER—WHERE TO WRITE It helps the Society greatly if Members ensure that their correspondence is addressed to the correct Officers of the Society, by using the ‘where to write’ panel in the most recent Bulletin. At present the correct addresses are as follows: Membership applications and first subscriptions to: Changes of address and non-arrival of Bulletins to: D. E. Dodwell, 28 Summerleaze Park, Yeovil, Somerset. Yeovil 3928. P. Taylor, 18 Old Manor Drive, Isleworth, Middlesex. Advertisers and for Prospectus of Society and Application forms to: Offers to lead field meetings, etc. to: Manuscripts, drawings and books for review to: Subscription renewals (25/- per annum, 12/6 under |8 years) to: Youth matters to: Offers of help, queries, etc. to: Annual exhibition matters to: R. D. Hilliard, 18 Golf Close, Stanmore, Mid- dlesex. GRimsdyke 0460. C. B. Pratt, | West Ham Lane, London, E.15 H. V. Danks, Imperial College Field Station, Silwood Park, Sunninghill, Ascot, Berkshire. B. R. Stallwood, 17 Claremont Avenue, Sun- bury-on-Thames, Middlesex. Sunbury 2687. H. J. Berman, St Ivo School, St Ives, Hunts. P. W. Cribb, 355 Hounslow Road, Hanworth, Feltham, Middlesex. FELtham 3099. B. F. Skinner, 85 Elder Road, West Norwood, London, S.E.27._ GIPsy Hill 9057. Printed by Ellis & Phillips Ltd., East Side Press, Rye Street, Bishop's Stortford and published by the Amateur Entomologzists’ Society, 42 Normandy Avenue, Barnet, Herts. 19 THE AMATEUR ENTOMOLOGIST Originally an annual publication (the Journal of the AES), containing longer articles than the Bulletin. Now used as a serial title for the Society’s Handbooks. Volumes in print are listed below. 8. Includes several leaflets that are now O.P.: Collecting Dragonflies; Collecting Mosquitoes; Making Sweepnets; an 8pp. list of standard books on entomology, etc. 48 pp., 32 figs., 6pl. Price: 10s. Od. 9. Practical Methods and Hints for Lepidopterists. Contains articles on rearing and collecting larvae; illustrated instructions for making beating trays and cages for all entomological purposes. 42pp., 48 figs., 6 pl. | Price: 10s. Od. 10. Contains illustrated articles on Collecting Lacewings; Drawing Insects; Collecting Caddises; Photography of Caterpillars; etc. 40 pp., 10 figs., 12 pl., (Not many left). Price: 12s. Od. ti. A Coleopterist’s Handbook. Describes the tools and methods for collect- ing British beetles; their habitats, commensals and pre-adult stages; how to record, photograph, make a personal collection, and conduct a local survey. 120 pp., 50 figs., 20 pl. Price each: 25s. Od. 12. A Silkmoth Rearer’s Handbook (2nd edn.). How to breed 120 exotic species in Britain, including substitute foodplants and descriptions of stages. Systematic section refers to 1,400 species. Does not deal with the Mulberry Silkworm (Bombyx mori), q.v. Leaflet No. 3. 165 pp., 26 figs., 26 pl. (2 col.). Price each: 30s. 0d. : The Butterfly Farm Ltd. (Founded in 1894) BILSINGTON, ASHFORD, KENT Telephone: Hamstreet 513 Soir comprehensive service is rapidly extending and we can supply many | 7 “i cid species of butterflies, moths and other insects—living, set or papered. 4g Also all: apparatus, equipment, books, and other biological needs of ~ entomologists. We cater for collectors, schools, and research workers. Visitors are welcome pole be sure to telephone for an appointment)— 3: Many items are on display and a visit is most rewarding. Sh ee ; : A. SHUTT 30 GLOVER ROAD, SHEFFIELD 8 Sphingidae Specialist Over 150 different species in stock Butterflies of most families, and wide range of Moths Many species of Coleoptera, Homoptera (Cicadidae) and Odonata also available Setting boards made to customers own specifications Please send 4d. stamp for lists The Entomologist’s Record and Journal of Variation A monthly illustrated magazine, founded by J. W. Tutt in 1890, is devoted mainly to the Lepidoptera of the British Isles. It also deals with other orders of insects especially Coleoptera, Diptera, Hymenoptera, Orthop- tera. Its articles include descriptions of new species and varieties, reports on collecting trips, distribution, habits and habitats of insects and of collecting and study techniques suitable for novice and expert. It circulates in 47 countries. Annual subscription due Ist January: Great Britain and Commonwealth - 35s. post free Other Countries’ - - - 40s. post free Write for specimen copy to F. W. Byers, 59, Gurney Court Road, St. Albans, Herts., enclosing 5/-. This amount will be taken into account in the first year’s subscription. MAY, 1968 , | : THE BULLETIN OF THE AMATEUR ENTOMOLOGISTS’ SOCIETY World List abbreviation : Bulli. amat. Ent. Soc. EDITED by H. V. DANKS, B.Sc., A.R.C:S., F.R.E.S. FREDERICK WARNE BUTTERFLIES AND MOTHS Nature Trails WORLDWIDE We have recently published SELECTION OF the Nature Conservancy's official handbook on nature PAPERED trails. This book supplies useful material on nature trails, their design and man- LEPIDOPTERA agement and the various Nature Trail Centres. There is an actual example of a nature trail. Ten half-tone plates and many line draw- ings. 5s. net | Price List from:— DOUGLAS E. DODWELL 28 SUMMERLEAZE PARK YEOVIL, SOMERSET 1-4 Bedford Court, Strand, WC2 AES NOTICE — where to write Membership applications and first subscriptions to: D. E. Dodwell, 28 Summerleaze Park, Yeovil, Somerset. Yeovil 3928. Changes of address and non-arrival of Bulletins to: P. Taylor, 18 Old Manor Drive, Isleworth, Middlesex. Advertisers and for Prospectus of Society and Application forms to: Offers to lead field meetings, etc. to: Manuscripts, drawings and books for review to: Subscription renewals (25/- per annum, 12/6 under 18 years) to: Youth matters to: Offers of help, queries, etc. to: Annual exhibition matters to: SSS, R. D. Hilliard, /8 Golf Close, Stanmore, Mid- dlesex. GRimsdyke 0460. R. H. Allen, 26 Burnside Road, Dagenham, Essex. D. Corke, West Ham Colle>e of Technology, Department of Biology, Romford Road, London, E15: B. R. Stallwood, 1/7 Claremont Avenue, Sun- bury-on-Thames, Middlesex. Sunbury 2687. H. J. Berman, St Ivo School, St Ives, Hunts. G. Prior, 23 Manor Way, North Harrow, Middlesex. B. F. Skinner, 85 Elder Road, West Norwood, London, S.E.27. GIPsy Hill 0057. ‘THE RAJAHBROOK’ LONDON’S BUTTERFLY CENTRE NOW OPEN JACEYS GALLERIES 523 OXFORD STREET, LONDON, W.1 (100 yards Marble Arch Station) Lepidopterist gifts and equipment. Large selection of set and papered specimens. Specialist manufacturers of entomological cases and cabinets—made to order and also to customers’ special requirements. Send 50p for Colour Photographs Tel.: MAYFAIR 0419 TWO IMPORTANT ADDITIONS TO THE A.E.S. LIST REARING STICK INSECTS Leaflet No. 30, 20 p.p. 10 figs. 1 pl. Price 6/—. Fully describes the life cycle and methods of rearing in the temperate zone. In addition there are keys to the eggs, older nymphs and imagines and further reading. INSECT LIGHT TRAPS Leaflet No. 33, 16 p.p. 16 figs. Price 6/—. Expertly written by J. Heath, who indicates the equipment needed and the theory and general operation of Light Traps. Also a list of equipment suppliers. From A.E.S. PUBLICATIONS AGENT, 137 Gleneldon Road, Streatham, London, S.W.16, England Do NOT send any money with your order. An invoice will be sent with the publication. Worldwide Butterflies Ltd. Over Compton, Sherborne, Dorset. Yeovil 4608-9 We offer a unique service to collectors, breeders, schools, universities, museums and research organisations. As well as livestock bred on the Sherborne butterfly farm we supply a comprehensive range of preserved specimens from all over the world, also books, collecting and breeding equipment, microscopes and laboratory requirements. Send for our current catalogue and details of our Mailing List. Visit our SHOWROOM at 21 Brighton Square, BRIGHTON. ADVERTISING IN THE AES BULLETIN Advertisements in the AES Bulletin are seen by a wide cross section of entomologists and others interested in natural history generally. Subscribers include collectors in many overseas countries as well as foreign libraries and museums. Despite a continued increase in printing costs, we have maintained our advertising rates at the lowest possible level and it is with regret that we decided that a small increase is now essential. As from November 1969 for new advertisers and from February 1970 for current advertisers, the rates will be as follows:— WHOLE PAGE £5 HALF PAGE £3 QUARTER PAGE £1.75p A discount of 10°% will be allowed on four, or more, consecutive printings of the same advertisement. Please address all enquiries to the: AES Advertising Secretary, 18 Golf Close, Stanmore, Middx. be EDITORIAL Junior Members will be interested to learn of the attractive Junior Con- servation Prize for 1968 (see the article below), which has been set up thanks to the interest and generosity of Sir Robert Saundby, and of Mr S. J. Whitehouse, and | hope that many Juniors will enter. It is not possible to over-emphasize the importance of conservation today, nor to stress too much that there is something that everyone (and this applies not only to Junior Members, of course) can do in this direction. Our Juniors always make an impressive effort at the Annual Exhibition: let them direct their energies here too. As Members may be aware, this is the last Bulletin which will appear under my Editorship, and | would like to take this opportunity of thanking all those who have helped— in contributing to the magazine or in other ways—to make my task a pleasant one. It is with great pleasure, too, that | introduce my successor, Mr David Corke, who has very kindly volunteered his services and has recently been helping in the prepar- ation of the Bulletin. Could | ask that Members try to simplify his job in the difficult transitional period: firstly by submitting plenty of material; and secondly by following wherever poss- ible the guidance for authors given in Bull. amat. Ent. Soc., 25: 109-12. All copy and correspondence for the Editor should now be sent to: D. Corke, Esq., West Ham College of Technology, Department of Biology, Romford Road, London, E.15. Care Front cover illustration: Larva and imago (pupa inset) of the White-letter Hairstreak Butterfly (Strymonidia w-album Knoch) on Wych Elm (Ulmus glabra Huds.), drawn by Mr J. Cooter (3290J). i ae AES BULLETIN No. 279 MAY, 1968 should be taken to use this full address. H. V. Danks (2907). JUNIOR CONSERVATION PRIZE [The Junior Conservation Prizes kindly set up by Mr S. J. Whitehouse and Sir Robert Saundby (see Bull. amat. Ent. Soc., 25: 37; 73-4), failed to attract an entry in 1967, and no prize was awarded for that year. The donors of the prizes have, however, generously agreed to make a single combined prize worth £5 available for this year, and more specific suggestions for entries are also given to encourage Juniors to try for this very worthwhile prize.] Junior Conservation Prize 1968 The Junior Conservation Prize for 1968—to be worth £5—will be awarded to the Junior Member (or group of Members) who contributes to the Bulletin (with the addition of supporting material if required) the best report of his service to nature conservation during 1967 and/or 1968. The purpose of the prize is to encourage Junior Members to take an interest and participate actively in conservation matters. To enable them to enter into a rewarding participa- tion of this nature, some suggestions are given below, and fall into two categories. The first includes ideas for fieldwork directed towards conser- 38 vation. The second allows scope for constructive suggestions as to how the problems with which we are faced today when attempting to conserve our insects may be met. Note that conservation of Orders other than the Lepidoptera is neces- sary in many cases and that our knowledge of the Lepidoptera—let alone these other Orders—is often insufficient in an area for useful con- servation work to be done before knowledge is collected: knowledge towards which any keen Junior Member could contribute. First category |. A-survey of the status of a species in an area, perhaps an area likely to be threatened by future development. 2. A study of the ecology of a given insect species, with particular ref- erence to the aspects possibly vulner- able to changes in the habitat. Find out how the species fits into its niche in the habitat and the factors there by which it could be affected. 3. A survey (of a Nature Reserve or other area) in co-operation with the local Naturalists’ Trust, etc.—fre- quently an entomologist is lacking from a local survey team, yet a com- plete knowledge of all the fauna is essential to direct conservation properly. 4. A report of the general assistance given to a conservation society, Naturalists’ Trust, etc. 5. Work in a habitat—individually or with a society or group—aimed at the conservation of an insect species. Before this can be done it is essential to know the species’ habits thoroughly (see 2 above). Second category 1. An area of entomological value near your home is threatened by a housing development: what would you do about it? 2. How would you set about an ecological survey of a threatened area? MAY, 1968 | 3. Indicate a species of our macro-) lepidoptera which you consider to be. in serious danger, and explain why. 4. What do you regard as the chief threat to our insect fauna today, and why? If you can write a contribution on one of the above, why not spare the extra time and answer where applic- — able by a practical demonstration? _ H.V.D./R.S.8 COLLECTING NOTES MAY, 1968 The Smaller Moths Lathronympha strigana Fab. (hyperi- cana Huebn.). Mr Bradford’s note reads as follows:— ‘‘l have bred this. moth along with Euspilapteryx auro- gutella Zell. from Perforate St John’s” Wort (Hypericum perforatum Linn.) which | discovered growing near) some gravel pits at Park Street, Hertfordshire. In June | dug up a clump of the plant and, on arriving © home, put it in a large flowerpot and | kept it outdoors in a large container. Eventually about a dozen of each of the moths emerged. | t ‘The forewings of L. strigana are of © a brownish orange colour. There are. leaden metallic streaks on the costa’ and the ocellus also has lighter: metallic patches and black streaks. The hindwings are grey. The adult is on the wing in June and July and the larva feeds in spun shoots of the foodplant.”’ This is a common species with a) wide range extending at least as far as the North of England. If you) collect the spun shoots of Perforate|_ St John’s Wort in June, you are also |} AES BULLETIN, VOL. 27 39 = of _ Lathronympha strigana Fab. 1 | likely to come across the larvae ‘of ' Agonopterix hypericella Huebn., which ‘thas a similar range. A third species ‘ associated with the same foodplant is ‘ Argyritis (Aristotelia) atrella Haw., the larva of which mines the stems in , May. ,|_ Clepsis (Tortrix) costana Fab. Mr , Bradford writes:— ‘‘In early May | , Visited a patch of waste ground » Within the studios of ATV at Bore- j | inl ee hh Nad f | Clepsis costana Fab. hamwood. Whilst there | took several specimens of Mompha fulvescens Haw. and M. raschkiella Zell. flying around Epilobium spp. Also in the spun leaves and shoots of the Great Willow-herb (E. hirsutum Linn.) | found about a dozen larvae of what proved to be Clepsis costana Fab. The larvae were of the energetic type, wriggling violently and often drop- ping to the ground. They were of a 40 dark brown colour—Meyrick states grey-green or brownish green, but my larvae were hardly green but of a deep brown. The adults all emerged between [5th and 26th June, which may have been a little earlier than their natural date of emergence. “The overall colour of the fore- wings is ochreous with darker brown markings and spots. The hindwings are a paler fuscous with darker greyish brown markings. The larvae are said to feed on various other plants apart from Epilobium, including Knapweed (Centaurea spp.), Marsh Cinquefoil (Potentilla palustris Linn.), Sea Aster (Aster tripolium Linn.) and Sea Lavender (Limonium vulgare MATE) If you have taken any C. costana as adults, you should examine them carefully in case there is another similar but little-known species among them. This is Paramesia gnomana Clerck which can be distin- guished readily, since veins 7 and 8 in the forewing are stalked instead of being separate. Mr Bradford mentioned two species of Mompha which he encountered in his patch of Epilobium. The larvae of the majority of the members of this beautiful genus feed on the different species of willow-herb during the spring and summer months. M. raschkiella Zell. is perhaps the easiest to find, as it has become common with the spread of its foodplant. This is the Rose-bay Willow-herb or Fireweed (Chamaenerion (Epilobium) angustifolium (Linn.) Scop.). The larvae mine the leaves, readily passing from one leaf to another—a convenient habit for the breeder. Tenanted mines are of a yellowish green colour, but they quickly turn white after the larva has gone. The mines may be sought for in May and June and again in August and September. In late May, too, M. conturbatella Huebn. spins the topmost shoots of this willow-herb MAY, 1968 together. The larvae are crimson- brown; black or greyish larvae will }. probably prove to be the ubiquitous } Olethreutes lacunana Schiff. or one of ¥ the Cnephasias. A month later a much 9 less common species may be sought in the stems; this is M. nodicolella Fuchs, the larva of which makes a gall, usually well above the base of the stems. The Great Willow-herb (E. hirsu- tum Linn.) also repays the careful searcher. You will now be too late for M. propinquella Staint., which mines the young leaves of this and other willow-herbs in the early months of the year. But May is the season for M. ochraceella Curt.; after mining the roots and lower stems, its larvae burrow into the leaves for ‘pupation. They are not difficult to find, but it is hard to keep the picked plants in good condition; if enclosed, they soon degenerate into a watery mush, while if left in the open they dry up and shrivel. Yet | have found that the pupae of M. ochraceella survive either misfortune, and the species is consequently an easy one to breed. Later on, in July, spinnings in the terminal shoots of E. hirsutum will contain larvae of M. fulvescens Haw. The smaller, younger plants are preferred. The pupa is in the spinning or in a folded leaf hard by, and this may be collected in August. M. lacteella Steph. is said to mine the leaves in August, but | have yet to} encounter this species. The smaller-flowered willow-herbs are liable to cross with each other and are not always easy to distinguish. E. montanum Linn. (Broad-leaved Willow-herb) is one of the commoner species. This is the foodplant of M. subbistrigella Haw., the larva of which feeds in the seed-pods in July and August; occupied pods are some- times thickened or distorted. M. decorella Steph. makes a gall in the stem of this and closely-related meES BULLETIN, VOL. 27 willow-herbs, often causing the plant to divide and branch above the gall. -) The larvae feed in July and pupate in the gall, when a tiny fragment of the white silk cocoon shows at the exit- hole. The adults emerge between the end of August and early October. | have left the most beautiful of the Momphas till last. The larvae of M. sshrankella Huebn. can be found in |) May and again in July mining the upper leaves of E. montanum and other small-flowered willow-herbs. The ) larvae, like those of M. raschiella, pass from leaf to leaf, but unlike that “species they pupate on the plant, ) spinning leaves together or folding ) them. This species is relatively rare in the south-east of England, but gets ). commoner as one travels west. | have ) found it abundantly in the west of lreland, where the foodplant is the Marsh Willow-herb (E. palustre Linn.). A. M. Emmet (1379). The Hymenoptera Aculeata A recent publication from the United States prompts me to deal » with the subject of trap nesting, and commend it to my readers for action during the 1968 season. Many bees and wasps make their | nests in cavities, either those they ' find pre-formed or those they bore | themselves. The two commonest | sites for such borings are the soil and dead wood, and it is the latter with which | want to deal here. Many types of wood can be utilised particu- larly if already tunnelled by beetles: tree trunks, logs, bramble stems, and | in gardens bean poles, fence posts, | and the like. Hence the extension to | providing deliberately fabricated trap nests is a simple one. Trap nests have been developed over many years and are the subject 4| of one of our own AES Leaflets (No. 7 G. S. Kloet, 1951, Some improved devices for rearing Hymenoptera). The recent book that | mentioned above is: K. V. Krombein (1967) Trap-nesting wasps and bees, Smithsonian Press, Pp. vi 570, and is sub-titled Life Histories, Nests, and Associates. This is a massive compilation of the results of twelve years work during which about 3,400 nests of 118 industrious species were examined. A simple trap nest design was used, and the depth of the study lies in the placement of many traps in widely ranging areas over many seasons. Thus it gives a picture of the population occurring in one place from season to season, and also of the variation over a wide geographical, and hence ecological, range. During the study new species were discovered, new associations between parasite and host established, and many other facets of life histories and behaviour studied. Some of the species Krombein was dealing with are holarctic in distribution and also occur in this country. The large eumenine wasp Ancistrocerus antilope Panz. is one such species, and the common leaf-cutter bee Megachile centuncularis Linn. and the chrysid Omalus aeneus Fab. are others. One particular finding which could not have easily been made by any other method has a relevance to our fauna. The eumenine wasp Ancistrocerus catskill Sauss. occurs in two colour forms previously thought of as sub- species, the yellow-marked typical form and the white-marked albophal- eratus Sauss. Krombein found that these two forms occurred together in one nest as the progeny of one mother on a number of occasions. Hence the two forms are merely colour forms of the same taxon. We have in this country a similar situation in the eumenine wasp Ancistrocerus pictus Curt. which is yellow-marked in most of its range, but in the north- 42 MAY, 1968 west exists as a white-marked form. The name to be used for this species is the subject of a taxonomic wrangle and the priority of certain names revolves arcund these two forms being con-specific. Unequivocal data from trap nests would help to sort this out. Krombein used very simple trap nests, merely bored out lengths of I” x |” planed, straight-grained wood. Three sizes of hole were found most useful, £” (3.2 mm), 3/16” (4.8 mm) and 4” (6.4 mm). Holes of these diameters were bored along the length of pieces of wood to within about 4” of the end. Lengths of 75 mm were used for 4” borings, and of [65 mm for the larger sizes. Some larger holes were used but would probably not be profitable in this country. Nests were put out in the field in bundles of six, two of each size. New traps were put out unsplit. Any traps that were occupied were split along their length with the grain of the wood to allow study of the nest contents. These were re-used after cleaning and heat sterilisation, the two halves being bound together with adhesive tape. | hope | have written enough to interest some of my readers in this type of study, and that you will be placing some trap nests out this year. If you cannot cover many different areas, another way of adding interest to your study would be to place batches of different kinds of traps in the same area. Perhaps in addition to the wooden traps | have described, bundles of bramble stems could be prepared, some left intact for those species which like to make their own tunnel and some hollowed out. To all those who try trap-nesting | wish the best of luck, and | will deal with the observations that should be made on any nests collected in a future article. J. C. Felton (3740). ANNUAL EXHIBITION SATURDAY, 7th OCTOBER 1967 | A wet morning gave way to the fine warm afternoon we have been privileged to enjoy over a number of years. A large gathering of Members and friends, including a most encour- aging number of new faces, thronged the hall from mid-day to the close and obviously enjoyed the exhibits and comprehensive array of ento- mological impedimenta. It was interesting to hear the views expressed by two friends of the author of this report who were revisiting the Exhibition after a lapse of many years. Their impressions were practically identical. Generally they thought the whole concept was on a larger scale, there were more exhibits, their presentation was more ambitious and the former dominance of British species was replaced by world wide representation. Many exhibitors were working to a theme which besides adding considerably to the interest for the viewers also pro- vided a modicum of useful research. Notably the sophisticated wares of the modern dealer compared favour- ably with the utility offerings of the immediate post-war years. Plastic was replacing wocd and glass and weighty equipment had been succeeded by more portable versions. Four specialist groups attracted well-deserved attention. Mr J. Heath was in attendance recruiting recor- ders for the Lepidoptera Distribution Maps Scheme, initially confined to the British Macro-lepidoptera. T.I.E.G. members had combined to produce an effective stand, including details of their field meetings. The Silkmoth Rearers’ Group, formerly one of the Society's most vigorous sections showed many species and coloured photographs and is planning to attract new members. The other new section, the Amateur Conservation Group, was busily raising enthusiasm f AES BULLETIN, VOL. 27 for its extremely worthwhile object- ives. The Council were particularly gratified at the response of the Junior Members. Once again Senior Members had generously provided two prizes for the most imaginative effort and the selection of the two winners was no mean task. The eventual choice was :— |. A. Lucas (3934J) ‘Survey of Happy meailey;; 2. D. V. Lewis (5963) ‘Common Moths of N. Wales’. The project of D. J. Longman (4042J) ‘Flight period of Moths’, was highly commended. In conclusion the Council wishes to express their appreciation to the organiser of the Exhibition, Mr B. F. Skinner and his many willing helpers, to Mr T. A. Robertson for his expert insect setting demonstrations, to the many Members who provided colour slides covering various aspects of ‘Natural History and finally to extend a welcome to all our Members and friends to visit us again next year. As in previous years as complete a list as possible was made of the exhibits in the time at our disposal. Allen, R. (3628) Insects of many orders taken in France during 1967. Appleton, D. M. (3631) Typical beetles from S. Hants, including a number of new records for the area. Bayts, R. Moths occurring in S. Devon and a collection of butterflies from S. France. Bradford, E. S. (3068) Moths taken in a garden at Bore- shamwood (Herts), mainly Pyrales and Micro-lepidoptera, during 1967 season. Brent B., Miss An interesting selection of British moths. Brown, A. D. R. (3851J) a5 Varieties of British butterflies, bred and collected. Brown, F. C. (2414) Pictorial illustration of a plague of locusts in Egypt with maps, life histories and methods of prevention. Bruce, C. G. (1746) Moths associated with marshes, collection made at ‘m.yv.’” light in E. Norfolk. Collins, M. S. (3975J) and Collins, J. S. (3762) A family tree for Coleoptera, with representatives of all major families and types, affording a worldwide coverage. Gribby be W-(2270); and o a a i} : KENYA b/Mt.Kin ngop Getundu a @ Thike BY Noirobi to SP Mombasa too pleased to take advantage of the offer. | was very surprised to find, as well as the millions of Army Worm many hundreds of fully grown larvae of the Yellow Pansy, Precis eononeé Linn. f. cebrene Trim. feeding on weed which grew amongst the grass Heliothis armigera Huebner the American Bollworm, although norm ally a pest of cotton, occurred in su large numbers that -they were AES BULLETIN, VOL. 27 attempting to eat everything that came their way. African smallholders in the Kikuyu area found their potatoes, peas and beans completely defoliated. | even found some larvae attempting to eat banana leaves. A further build up occurred in the Mt. Kenya farming area later in 1966. The larvae here attacked the green “‘milky’’ stage of wheat, eating into the unripe ears. A Saturniid /mbrasia epimethia can usually be found feeding on foliage of the Black Wattle tree Acacia mearnsii where plantations occur. These trees are grown for their bark which is used in the tanning process. African smallholders also grow these trees for making charcoal. During the early months of 1966 these larvae occurred in very large numbers. Trees in the Gatundu area, some twenty miles north of Nairobi, were defoliated by the 6” spiny caterpillars. | recall sitting quietly under some trees and being able to hear the caterpillars munching the foliage and the noise of their frass falling to the ground. One of my favourite collecting grounds for the African Clouded Yellow Colias electo Linn. were some lucerne fields bordering the north shores of Lake Naivasha. This lake is one of several volcanic lakes of the Great Rift Valley. The area is typical of Kenya in that the scenery is extremely beautiful. Looking across the lake one can see the volcano Mt. Longonot directly opposite, and to the east lies Mt. Kinangop and the Aberdares. The hills of the Gt. Rift Valley Escarpment are visible in the distance. A few hundred yards out into the lake floats a mass of papyrus in which Hippopotami remain during the daytime. The strip of water bordering the shore is thick with patches of water lilies and thousands of water birds. Pelicans swim in groups of a dozen or more, while fish eagles fly up and down, their phantom- like cries echoing from the hills. The 87 sun beats down unrelentingly. The area has only one disadvantage. Along the edges of the lake mosquitoes swarm in profusion and | can assure everyone that they bite throughout the day as well as in the evenings. The East African race of Colias electo Linn. pseudohecate Berger are always in plentiful numbers here. One could rarely make a sweep with a net above the lucerne without catching at least one butterfly. During the 1965-6 season the lucerne was liter- ally crawling with caterpillars and many of these butterflies migrated in a south easterly direction later in the season. The female of the African Clouded Yellow exhibits a range of colour forms as does the British species. The colours range from white through cream, buff, and pale yellow to orange. When butterflies of the same species occur in large numbers it is surprising how quickly one learns to recognise individuals which have slight differences in pigmen- tation, without really having had a good look at them. On several occasions | have chased a particular specimen across a field, ignoring scores of others without really knowing why, and on catching it | have found it to be an interesting variety. Perhaps it is because of acute colour perception or it may be a result of a slight difference in the flight of the insect. During this season, another butter- fly was also present in large numbers in the lucerne fields. The Painted Lady Vanessa cardui Linn. breeding up in vast numbers before migrating northward to Europe. The larvae were feeding on the weed Malva verticillata Linn. (Mallow) which was growing amongst the lucerne, along the edges of the fields and in the uncultivated areas where spray was carried by the wind from the irriga- tion pipes. | collected many of these larvae and raised them in cages at my 88 AUGUST, 1968 home near Nairobi. Examination of approximately one hundred adults which later emerged, failed to reveal any variations. The infrequent occurrence of such abnormally large numbers of certain species of Lepidoptera raises the question of the cause of these increases. At the time of observing the above example | thought that it was probably the result of optimum conditions for Lepidoptera in general and, although | noted the fact that many of the above mentioned species are known migrants, | believed that they migrated away from East Africa and did not consider that they may also migrate into East Africa. Recent work by Brown and Swain (1965) working on the African Army- worm has shown that there is a northerly origin for these moths. In Kenya and N. Tanganyika the season for Armyworm is from November to May. During May to October no trace can be found of any stage of this species. Evidence from light traps in Ethiopia, Somalia and Aden shows that moths occur in these areas in May and to October. Data is available from twenty light traps throughout East Africa. In the 1965-6 season the first arrival of moths in Kenya was in November. Examination of weather conditions at the time show that their arrival coincided with the southern limit of the advancing north-easterly winds. It must be assumed that large numbers will breed up when con- ditions are optimum. When this happens in the northern areas, more moths will reach East Africa. If con- ditions are optimum here also, fantastic numbers result, an example of which is described here. This pattern of build up of numbers is probably as true for Vanessa cardui, Anaphais mesentina and Colias electo as it is for Spodoptera exempta. L. McLeod (3534). REFERENCES BROWN, E. S. and SWAIN, G. (1965). New evidence on the migration of the moths of the African Army- worm Spodoptera exempta (Wlk) (Lepidoptera, Noctuidae). Bull. Ent. Res. 56: 671-84. SWAIN, G. (1963). Fighting the Armyworm. New Scientist 17: (326) 357-8. BREEDING FOR THE REIN- FORCEMENT OF SPECIES In his articles condemning the practice of breeding insects for the reinforcement of species, Mr Goddard (Bull. -