The long, soft and fleshy appendage between labrum and labium is called hypopharynx or lingya. Its base is folded and covered with cuticle. The subtongue is involved in moving food and swallowing food.
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The long, soft and fleshy appendage between labrum and labium is called hypopharynx or lingya. Its base is folded and covered with cuticle. The subtongue is involved in moving food and swallowing food.