What anatomical feature marks the narrow constriction connecting the wasp's thorax and abdomen?
Answer
Petiole
The connection between the thorax, which houses the legs and wings, and the abdomen, which contains the digestive and reproductive organs, is defined by a significantly narrow constriction known specifically as the petiole. This slender 'waist' is an exceptionally pronounced feature in wasps compared to many other insects, granting the abdomen high flexibility. This flexibility is crucial for the insect, allowing it to precisely maneuver its rear end when executing a defensive sting or when delivering a paralyzing sting to capture prey. The distinct definition of the petiole is a primary visual characteristic used to identify wasps.
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