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Photo#251984
Mealworm beetle - Tribolium madens

Mealworm beetle - Tribolium madens
Edmonton, Alberta, Canada
May 18, 2008
Size: About 4-5mm
This invaded my bag of chocolates (never leave a bag open...). It was much smaller than any species I know.

It was Cadbury's chocolate buttons, so the European import species below sounds likely.

Moved tentatively
Moved from Flour Beetles.

Moved
Moved from Frass. Not the best image but moving this back as I realise that we have few images and this is the first data point for Alberta

 
Large Trilobium
According to http://www.grainscanada.gc.ca/storage-entrepose/sip-irs/bfb-tm-eng.htm T. madens is "large for flour beetles, 3.9 to 5.1 mm long".

I found this beetle inside Cadbury's chocolate buttons which was probably a European import item.

Going by the fact that my beetle was definitely at least 4mm, what other species stand in the way confusion wise?

Frassed
Moved from ID Request.

Tribolium; suspect T. madens
*

 
Any ideas?
I see T. madens would still be a new "guide species"...what species could it be confused with?

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