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Body
Body Size
1.4 - 2.3 mm
1.5 - 2 mm
1.8 - 2.4 mm
1.8 - 2.8 mm
2 - 3 mm
2 - 3.5 mm
2 - 5.4 mm
2 mm
2.0 - 3.5 mm
2.25 - 3.5 mm
2.3 - 3.5 mm
2.3 – 4.4 mm
2.5 - 3mm
2.5 - 4 mm
2.6 - 4.6 mm
2.8 - 3.5 mm
3 - 4 mm
3 - 5 mm
3.0 - 5.0 mm
3.5 - 4.2 mm
3.5 - 5.5 mm
3.5 - 7 mm
3.5 - 7.4 mm
4 - 5 mm
Body Shape
Cylindrical
Elongate
Elongated with snout
Flattened
Globular
Oval
Body Color
Black
Brown
Dark brown
Dark brown and grey Patches
Grey-green/faint olive
metallic bluish-green
Reddish brown
Reddish brown - covered dorsally by golden scale- like setae
Yellow brown
Head
Head prolonged into a snout
No
Yes
Head clearly visible from above
Yes
No
Antennae
Ending in a club
No
Yes
Straight without distinct elbow
Yes
No
Pronotum
Pits on Pronotum
No
Oval pits
Round/circular pits
Subcircular pits
Front edge saw-toothed
No
Yes
Teeth like projections on pronotum
No
Yes
ELYTRA COLOR AND PATTERN
Yellowish-grey setae with darker brown patches
Striated with 3 row of setae
Covered with densely brownish hairs except small whitish patches
White; black and grey patches covered with short hairs
Flattened with several light grey or white spots
Lateral black spots on elytra seprated by dull white Setae
Anterior broad golden band and two white bands in the middle
Middle black spots on elytra seprated by white Setae
Reddish brown to reddish yellow with small black markings
Four rows of setae on the elytral intervel
Three rows of setae on the elytral intervel
Smooth with short hairs; without striae
Not ridged along the length
Stiff bristle-like hairs
Striated with row of punctures
Pitted and has many small wart-like outgrowths
Regular rows of coarse punctures covered with curved setae
No spots on elytra
Presence of wings beneath the eltyra
Four reddish-brown spots
Elytra ridged along the length
Two or three indistinct band of yellowish-white ensiform (flattened) setae
Distinct colour patterning
Tenth stria of each elytron is about half as long as the elytron
Stored Grain Pest - Digital Keys for Beetles Species Remaining :
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