What observation regarding exit holes immediately signals a true seed weevil infestation like *A. obtectus*?
Answer
Presence of neat, round exit holes
The presence of neat, round exit holes immediately signals a true seed weevil infestation like *A. obtectus*, as this results from the adult chewing its way out after developing internally, distinguishing it from pests like the confused flour beetle.

Related Questions
What is the scientific name assigned to the bean weevil pest?What science is defined as naming, defining, and classifying biological organisms based on shared characteristics?What physical feature characterizes insects belonging to the Order Coleoptera?In modern systematic biology, what family is the subfamily Bruchinae typically placed within?What common name universally describes insects belonging to the subfamily Bruchinae?Which life stage of *Acanthoscelides obtectus* is responsible for causing almost all the damage to stored beans?Which description accurately applies to the adult bean weevil, *A. obtectus*?Why are topical treatments or surface sprays largely ineffective against developing *A. obtectus* larvae?What observation regarding exit holes immediately signals a true seed weevil infestation like *A. obtectus*?Which crop is *Acanthoscelides obtectus* famous for attacking, differentiating it from pests like *Callosobruchus maculatus*?Beyond pest control, what crucial international activity relies on the agreed-upon naming convention of *A. obtectus*?