1, chewing mouthparts, its nutritional way is to chew the solid tissues of plants or animals for food. Such as cockroaches and locusts; ?
2. Chewing and sucking mouthparts have complicated structures. Besides the big jaw can be used for chewing or plastic wax, the middle tongue, the outer lobe of the small jaw and the lower lip must be combined to form a complex food tube to suck nectar. Such as bees;
3. Needle aspirator, formed into a needle tube, used to suck the juice in plants or animals. This mouthpiece can't eat solid food, it can only pierce the tissue to absorb juice. Such as mosquitoes, lice and bedbugs.
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The mouthparts of insects are composed of three pairs of appendages behind the head and a part of the head structure, which mainly have feeding and sensory functions. The mouthparts of spiders include two pairs of appendages (spiders are not insects, but arachnids). The mouthparts of insects include an upper lip, a pair of big jaws, a pair of small jaws, a tongue and a lower lip. The upper lip is the front page of the oral cavity, with 1 block (there is a protrusion inside, called the upper tongue).
Tongue is a long and narrow protrusion from the back of the upper lip and the front of the lower lip, and salivary glands generally open at the base of the back wall. Jaw, jaw and lower lip belong to three pairs of appendages behind the head.
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