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A key to adult beetles associated with stored grain:

A key to adult beetles associated with stored grain:. 1a) Head with snout; antennae with geniculate elbow  Curculionidae b) Head without snout; antennae not as above - . 2. 2a) Elytra short, exposing abdominal segments  b) Elytra long, covering abdominal segments . 3. 4.

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A key to adult beetles associated with stored grain:

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  1. A key to adult beetles associated with stored grain: 1a) Head with snout; antennae with geniculate elbow  Curculionidae b) Head without snout; antennae not as above -  2 2a) Elytra short, exposing abdominal segments  b) Elytra long, covering abdominal segments  3 4 3a) Beetle covered with hairs; antennae long, no club  b) Beetle not very hairy; antennae with a round club  5 6 4a) Head hidden dorsally; body cylindrical/round  b) Head visible dorsally; body flattened  7 8 8a) Beetle green-blue/metallic; lateral hairs  Cleridae b) Not as above  9 10 9a) Lateral pronotal teeth+  b) Lateral pronotal teeth-  11 1a 1b 2a 2b 3a 3b 5b 5a 4a 4b 5a) Antennal segments – simple/saw tooth-like, no club Bruchinae b) Antennae with last 3 segm. forming club Anthribidae 6a) Beetle shiny black/metallic; 1 segm. antennal club  Histeridae b) Beetle black/brown; 3 segm. antennal club  Nitidulidae 6b 6a 7a) Antennae short, 3 segm. club; beetle elongate/cylindrical; pronotal teeth+ Bostrichidae b) Antennae long, no or loose 3 segm. club; beetle oval; pronotal teeth-  Anobiidae 7a 7b 8a 9a 9b Operational Science Program (DAFF)

  2. A key to adult beetles associated with stored grain: 10a) Pronotum with 6 lateral teeth/ 2 or 4 pronotal corners teeth-like  Silvanidae b) Pronotum with front corners tooth-like and also laterally mid-point  Cryptophagidae 10a 10b 11a) Antennae long, no club; pronotum with a pair of lateral ridges; beetle flattened  Cryptolestes spp. Laemophloeidae b) Not as above  11a 12 12a) Beetle >2mm; tarsi  3 segm; antennae 1-3 segm.  Latridiidae b) Beetle 2-12mm; tarsi > 3 segm; if antennae clubbed – 3 segm. 13 12a 13b 13a 13a) Beetle covered with hairs/scales  b) Beetle glaborous(not hairy)  14 16 14a 14b 14a) Head with median ocellus  Dermestidae (in part) b) Median ocellus absent  15 15a) Beetle 5-10mm; brown/black coloured with underside B&W patterns of hairs  Dermestes spp.Dermestidae (in part) b) Beetele 2-3mm; light brown coloured; elytral hairs obvious in parallel lines  Mycetophagidae 15a 15b 16a) Beetle 5-11mm & shiny black; waist + between prothorax & elytra  Trogossitidae (Cadelle) b) Beetle 3-12mm & brown/black; waist - between prothorax & elytra; tarsi 5-5-4  Tenebrionidae 16a 16b Operational Science Program (DAFF)

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