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EENY289: Confused Flour Beetle, Tribolium confusum Jacquelin du Val (Insecta: Coleoptera: Tenebrionidae) and Red Flour Beetle, Tribolium castaneum (Herbst) (Insecta: Coleoptera: Tenebrionidae)

Figure 4. "Four-segemented" or gradual club of an adult confused flour beetle, Tribolium confusum Jacquelin du Val. Photograph by: James Castner, University of Florida.