Beetles Identification Guide

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Sexual dimorphism: Sexes are externally similar. Distribution: Reported in Europe, Japan, and North America. In Canada the species has been collected in New Brunswick, Quebec, Ontario, and Manitoba. Economic importance: As discussed for the family. Dienerella filiformis (Gyllenhal) Diagnosis: The species is superficially similar to D. costulata but differs mainly in having the third, fifth, and seventh elytral intervals flat and 7 rows of punctures on the posterior half of each elytron, the fifth and sixth being coalescent near the middle. Sexual dimorphism: Sexes are externally similar. Distribution: Recorded in Europe, Japan, and North America; possibly established in New Zealand (Archibald and Chalmers 1983). In Canada the species has been collected in Prince Edward Island, New Brunswick, Manitoba, Saskatchewan, and Alberta. Economic importance: As stated for the family. Dienerella filiformis appears to be the most common species of Dienerella in granaries and grain elevators in the Prairie Provinces. Dienerella filum (Aubé) Diagnosis: The species differs from the other Dienerella included here in having a 2-segmented antennal club, the head with a median, longitudinal impression and the pronotum with a broad, median, oval depression on the anterior half. Sexual dimorphism: Sexes are externally similar. Distribution: Reported in Europe, North Africa, and the New World. In Canada the species occurs in the temperate regions from Quebec west to British Columbia. Economic importance: As stated for the family. The species has recently been reported as a potential pest of air-conditioning and refrigeration systems (Carlton 1988). Dienerella ruficollis (Marsham) Diagnosis: Among the species of Dienerella occurring in Canada, D. ruficollis is 132
Fig. 208 Dienerella ruficollis (Marsham). Scale = 0.5 mm. 133
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BEETLES associated with stored prod
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© Minister of Supply and Services
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ACKNOWLEDGMENTS I am indebted to L.
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INTRODUCTION This book is intended
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Trogoderma inclusum LeConte Trogode
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IDENTIFICATION KEYS Key A GENERAL 1
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Hind femur without or with small to
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33(31) Pronotum with 6 large teeth
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Key B ANTHICIDAE 1(0) Integument of
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Key C CRYPTOPHAGIDAE 1(0) Antennae
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16(15) Pronotum with anterior angle
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Elytra covered mostly with white or
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Key E LATHRIDIIDAE 1(0) Elytra with
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Key F NITIDULIDAE 1(0) Abdomen with
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Elytra moderately hairy, strial pun
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9(8) Eye about 3 facets wide latera
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Figs. 9—21 Antenna (dorsal view).
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Figs. 32—38 Pronotum and elytra o
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Figs. 48—56 Elytra of (48) Anthic
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Figs. 66—74 Head and pronotum. (6
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Figs. 89—98 Anterior half of body
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Figs. 109—117 Head and pronotum o
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Figs. 124—132 Elytra and exposed
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Figs. 146—155 Head (lateral view)
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IDENTIFICATION PLATES 49
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Fig. 170 Stored-product beetles wit
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Fig. 172 Stored-product beetles wit
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Fig. 174 Stored-product beetles of
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GENERAL INFORMATION This section co
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Fig. 176 Lasioderma serricorne (Fab
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Fig. 177 Stegobium paniceum (Linnae
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Sexual dimorphism: Males have 2 exp
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combination of having the surface o
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Fig. 179 Araecerus fasciculatus (De
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Fig. 180 Dinoderus minutus (Fabrici
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Sexual dimorphism: Males usually ha
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Fig. 182 Acanthoscelides obtectus (
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tibia; females lack such projection
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on the anterolateral margin of the
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Distribution: Cosmopolitan but more
Page 81 and 82: Fig. 186 Atomoria ephippiata Zimmer
Page 83 and 84: those of C. distinguendus Sturm, a
Page 85 and 86: Economic importance: As mentioned f
Page 87 and 88: Economic importance: As mentioned f
Page 89 and 90: Woodroffe, G.E.; Coombs, C.W. 1961.
Page 91 and 92: the Coleoptera dealt with here by t
Page 93 and 94: Fig. 190 Cryptolestes turcicus (Gro
Page 95 and 96: Fig. 192 Oryzaephilus mercator (Fau
Page 97 and 98: David, M.H.; Mills, R.B. 1975. Deve
Page 99 and 100: Fig. 193 Sitophilus granarius (Linn
Page 101 and 102: Most species feed almost exclusivel
Page 103 and 104: Fig. 194 Anthrenus scrophulariae (L
Page 105 and 106: Fig. 195 Attagenus unicolor (Brahm)
Page 107 and 108: successful in rearing the species o
Page 109 and 110: have recently become serious pests
Page 111 and 112: probably surviving on the remains o
Page 113 and 114: Fig. 199 Reesa vespulae (Milliron).
Page 115 and 116: Fig. 200 Thylodrias contractus Mots
Page 117 and 118: Fig. 202 Trogoderma glabrum (Herbst
Page 119 and 120: with insecticides, and in a short t
Page 121 and 122: Economic importance: The species is
Page 123 and 124: Fig. 203 Mycetaea subterranea (Fabr
Page 125 and 126: Fig. 204 Carcinops pumilio (Erichso
Page 127 and 128: Fig. 205 Aridius nodifer (Westwood)
Page 129 and 130: Fig. 206 Cartodere constricta (Gyll
Page 131: Twelve species of Corticaria have b
Page 135 and 136: Fig. 209 Enicmus fictus Fall. Scale
Page 137 and 138: Diagnosis: Among the lathridiids di
Page 139 and 140: Fig. 212 Thes bergrothi (Reitter).
Page 141 and 142: Fig. 213 Litargus balteatus LeConte
Page 143 and 144: Diagnosis: This mycetophagid differ
Page 145 and 146: Selected reference Parsons, C.T. 19
Page 147 and 148: Distribution: Throughout the temper
Page 149 and 150: Economic importance: In Canada this
Page 151 and 152: Fig. 219 Omosita colon (Linnaeus).
Page 153 and 154: PTINIDAE spider beetles About 15 sp
Page 155 and 156: Fig. 221 Mezium affine Boieldieu. S
Page 157 and 158: Fig. 222 Niptus hololeucus (Falderm
Page 159 and 160: Distribution: Japan and introduced
Page 161 and 162: Fig. 224 Ptinus fur (Linnaeus); mal
Page 163 and 164: Fig. 226 Ptinus ocellus Brown. Scal
Page 165 and 166: The species was recorded in Canadia
Page 167 and 168: foodstuffs in the Vancouver area. I
Page 169 and 170: Fig. 229 Trigonogenius globulus Sol
Page 171 and 172: which they apparently prey; those o
Page 173 and 174: STAPHYLINIDAE rove beetles The Stap
Page 175 and 176: In North America as well as in Brit
Page 177 and 178: Economic importance: In North Ameri
Page 179 and 180: Fig. 234 Cynaeus angustus (LeConte)
Page 181 and 182: Fig. 235 Gnathocerus cornutus (Fabr
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Fig. 237 Palorus ratzeburgii (Wissm
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Fig. 238 Tenebrio molitor Linnaeus.
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Sexual dimorphism: Sexes are extern
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or 2 facets). It is most similar to
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Halstead, D.G.H. 1967. Biological s
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side margin of the head and the ant
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Figs, 248—256 (248) Anthrenus fus
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Figs. 260—263 (260) Tribolium cas
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Figs. 267—269 (267) Pseudeurostus
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facet A lens-like unit of the compo
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Fig. 270 Tenebrio molitor (dorsal v
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LITERATURE CITED Adams, R.G. 1978.
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Ghorpade, K.D.; Thyagarajan, K.S. 1
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Smith, L.B. 1962. A note on Cryptol
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coffee bean weevil ................
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pea weevil.........................
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