Beetles Identification Guide

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130 Fig. 207 Corticaria pubescens (Gyllenhal). Scale = 0.5 mm.
Twelve species of Corticaria have been recorded in Canada, and those most likely to be found in stored products are C. elongata (Gyllenhal), C. fenestralis (Linnaeus), C. serrata (Paykull), and C. pubescens (Gyllenhal). The first three species listed have been reported by Aitken (1975) in Canadian cargo ships carrying wheat and barley. The North American species of this genus are in need of a taxonomic revision. Economic importance: As stated for the family. Corticarina Reitter Diagnosis: Adults of Corticarina occurring in Canada are rather superficially similar to those of Corticaria but differ mainly in having 6 visible abdominal sterna and the first segment of the hind tarsi strongly produced ventrally. The genus includes four or five species in Canada, the most common ones being C. fuscula (Gyllenhal) (= C. americana auct. amer.) and C. cavicollis (Mannerheim). The latter species is commonly found in granaries in the Prairie Provinces. The North American species of Corticarina are in need of a taxonomic revision. Economic importance: As mentioned for the family. Dienerella arga (Reitter) Diagnosis: The species differs from the other Dienerella with a 3-segmented antennal club by the large eyes, which occupy the hind angles of the head so that the temples are absent. In the other species of the genus dealt with here, except D. filum, whose adults have a 2-segmented antennal club, the eyes are smaller and the temples distinct. Sexual dimorphism: Sexes are externally similar. Distribution: Known in Europe, North Africa, and North America. In Canada the species has been found only in Quebec and Ontario. Economic importance: As stated for the family. Dienerella costulata (Reitter) Diagnosis: This species and D. filiformis are readily distinguished from the other species of Dienerella dealt with here by the very small eyes, which consist each of only 4 or 5 facets. Adults of D. costulata differ from those of D. filiformis mainly in having the third, fifth, and seventh elytral intervals slightly carinate and by the presence of 8 rows of punctures on the posterior half of each elytron. 131
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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
Page 79 and 80: 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: Fig. 206 Cartodere constricta (Gyll
Page 133 and 134: Fig. 208 Dienerella ruficollis (Mar
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)
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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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