Albert Lea Seed House Oat Production Guide | Page 39

Figure 14.3.
Red flour beetle
Tribolium castaneum – antennal
club abruptly enlarged.

Figure 14.4.
Confused flour beetle
Tribolium confusum– antennal
club gradually enlarged.

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Figure 14.5.
Red flour beetle
Tribolium castaneum – gap
between eyes relatively narrow
(about 33% of head width).

Figure 14.6.
Confused flour beetle
Tribolium confusum– gap
between eyes relatively
wide(about 50% of head width).
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