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Furze Hill, near Pirbright Common, Surrey August 1988 Altitude 54 m. Peaty, mesotrophic pond with white water-lily and broadleaved pondweed, and marginal bulrush, rushes, bog-myrtle and Sphagnum, surrounded by Scots pine, birch and sallow. Site for Ceriagrion tenellum, Erythromma najas, Aeshna grandis, A. cyanea, Cordulia aenea and Somatochlora metallica. PHOTOGRAPH: R MERRITT Colaton Raleigh Common, Devon August 1987 Altitude 90 m. Shallow spring-fed gravelly runnel emanating from underlying calcareous sandstone in heathland dominated by heather and western gorse, with scattered Scots pine and birch. The margins support black bogrush, purple moor-grass and rushes, and boggy areas contain Sphagnum and round-leaved sundews. This and the following locality are sites for Coenagrion mercuriale, Pyrrhosoma nymphula, Cordulegaster boltonii and Orthetrum coerulescens. PHOTOGRAPH: R MERRITT Mynydd Preseli, near Brynberian, Pembrokeshire May 1985 Altitude 145 m. Spring-fed runnel over marl, containing marsh St John's-wort, bog pondweed and marginal Sphagnum species, in an area of sheep-grazed heath dominated by purple moor-grass, heather and bilberry. PHOTOGRAPH: R MERRITT Cadover Bridge, near Lee Moor, Devon June 1988 Altitude 216 m. Shallow pool in old china clay workings, resulting from the silting up of a settling pond, with emergent common cottongrass, soft rush, unbranched bur-reed, floating sweet-grass and lesser spearwort. Site for Ischnura pumilio, elegans, Lestes sponsa, Libellula guadrimaculata and L. depressa. PHOTOGRAPH: R MERRITT
PLATE 1 Calopteryxvirgo adult PLATE 2 Pyrrhosoma nymphula adult PLATE 3 Coenagrion lunula turn adult PHOTOGRAPH:RTHONMSON PHOTOGRAPH:RTHONWSON PHOTOGRAPH:RTHONWSON PLATE 6 Ischnura pumilio adult _ PLATE 4 Platycnemis penmpes adult PHOTOGRAPH:RTHONWSON PLATE 5 Coenagrion hastulatum adult PHOTOGRAPH:RTHONWSON PHOTOGRAPH:RTHONMSON
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Cover photograph: Aeshna juncea Ins
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@ NERC Copyright 1996 ISBN 0 11 701
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FOREWORD Having been on the fringe
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ACKNOWLEDGMENTS The following list
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Howard, G.; Howard, LW; Howe, M.; H
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Walker, D.S.; Walker, FA; WaLker, I
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CHECKLIST The following checklist i
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Aeshna mixta Latreille 1805 Aeschna
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THE BRITISH AND IRISH ODONATA IN A
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of distributions of dragonflies usi
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I 00 o o Figure 3. Map of coverage
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,o " Figure 5. Map of coverage at t
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FIELDWORK AND DATA MANAGEMENT METHO
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areas, and encouraged in this by bo
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Table 3. Distribution of each speci
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Table 4 (con°. Vice-county distrib
Page 36 and 37: Table 4 (cont). Vice-county distrib
Page 38 and 39: Computerisation and validation Havi
Page 40 and 41: dominance of one individual over an
Page 42 and 43: RESIDENT SPECIES Description Habita
Page 44 and 45: Calopteryx splendens (Harris) Bande
Page 46 and 47: Description Flight periods Status a
Page 48: Description Lestes dryas Kirby Scar
Page 51 and 52: Platycnemis pennipes (Pallas) White
Page 53 and 54: Pyrrhosoma nymphula (Sulzer) 1975-9
Page 55 and 56: Erythromma najas (Hansemann) 1975-9
Page 57 and 58: Coenagrion mercuriale (Charpentier)
Page 59 and 60: Coenagrion scituluni (Rambur) Daint
Page 61 and 62: Coenagrion hastulatuni (Charpentier
Page 63 and 64: Coenagrion lunulatum (Charpentier)
Page 65 and 66: Coenagrion armatum (Charpentier) No
Page 67 and 68: Coenagrion puella (Linnaeus) Azuxe
Page 69 and 70: Coenagrion pulchellum (Vander Linde
Page 71 and 72: Enallagma cyathigerurn (Charpentier
Page 73 and 74: Ischnura pumilio (Charpentier) Scar
Page 75 and 76: Ischnura elegans (Vander Linden) 19
Page 77 and 78: Ceriagrion tenellurn (Villers) 1975
Page 79 and 80: Aeshna caerulea (Strom) Azure hawke
Page 81 and 82: Aeshna juncea (Linnaeus) Common haw
Page 83 and 84: Montiaghs Moss, near Aghalee, Co An
Page 85: Sundon Springs chalk quarry, near L
Page 89 and 90: PLATE 13 Libellula fulva adult PLAT
Page 91 and 92: Aeshna mixta Latreile Migrant hawke
Page 93 and 94: Aeshna cyanea (Muller) Southern haw
Page 95 and 96: Aeshna grandis (Linnaeus) Brown haw
Page 97 and 98: Aeshna isosceles (Muller) Norfolk h
Page 99 and 100: Anax imperator Leach Emperor dragon
Page 101 and 102: Brachytron pratense (Muller) Hairy
Page 103 and 104: Gomphus vulgatissimus (Linnaeus) 19
Page 105 and 106: Cordulegaster boltonii (Donovan) Go
Page 107 and 108: Cordulia aenea (Lin.naens) Downy em
Page 109 and 110: Somatochlora metallica (Vander Lind
Page 111 and 112: Somatochlora arctica (Zetterstedt)
Page 113 and 114: Oxygastra curtisii (Dale) Orange-sp
Page 115 and 116: Libellula quadrimaculata Linnaeus 1
Page 117 and 118: Libellula fulva Mailer Scarce chase
Page 119 and 120: Libellula depressa Linnaeus 1975-90
Page 121 and 122: Orthetrum cancellatum (Linnaeus) 19
Page 123 and 124: Orthetrum coerulescens (Fabricius)
Page 125 and 126: Sympetrum striolaturn (Charpentier)
Page 127 and 128: Sympetrum sanguineum (Muller) Ruddy
Page 129 and 130: Sympetruni danae (Sulzer) 1975-90 o
Page 131 and 132: Leuconhinia dubia (Vander Linden) W
Page 133 and 134: IMIVLIGRANTS AND ACCIDENTAL SPECIES
Page 135 and 136: POSSIBLE ADDITIONS TO THE BRITISH A
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SEASONAL OCCURRENCE PREVIOUS REPRES
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700 600 500 400 300. 200 100 0 90 8
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70 60 50 40 30 20 10 90 80 70 60 50
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Finally, differences in recorder be
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ODONATA LOCALITY 6411 V10E-COUNTY N
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Particularly in the case of residen
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conditions and which may be of grea
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1960s from its single locality alon
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pond. One of the authors did this o
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REFERENCES Aguilar, J. d', Dommange
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Gabb, R. & Kitching, D. 1992. The d
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Coenagrion rnercuriale (Charpentier
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Dee'. Transactions of the Natural H
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Circumboreal Occurring in a band en
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Marl A whitish clay soil with a hig
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Vulvar scale WATCH Weald Wheel posi
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Appendix 2. LIST OF PLANT NAMES Pla
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Libefiula depressa 5,6,14,17,18,19,
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