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3 head thorax abdomen
4 *The first body region is the head. Insect heads can be highly variable, but most possess eyes, antennae and mouthparts.
5 antennae Head mouthparts compound eyes eyes
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9 *Antennae are used by insects as major sensory devices, especially for smell, and can be adaptive for the insect in many ways. Found below or between Compound Eyes* *Made of a scape, pedicle and flagellum.
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11 *Thread like. *Segments are usually cylindrical. *Thickness of segments remains same throughout. Example: ground beetle and grasshopper.
12 Grasshopper- Syrbula admirabilis
13 * Antenna in which the flagellum is reduced to a short, slender bristle-like structure. Dragonflies Example:
14 Are bead like in shape *Segments are either globular or spherical with prominent constriction in between. Example: Termites
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16 *Serrate antennae have a sawtoothed shape. *Segments have short triangular projections on one side. Example: Click beetles.
17 Click-beetle- Athous haemorrhoidalis
18 *Pectinate antennae have a comb-like shape. *Segments with long slender processes on one side Example: Fire-coloured beetles and glow-worms.
19 Segments with long slender lateral processes on both the sides Example: Silkworm moth
20 Silkworm moth
21 Clavate antennae are gradually clubbed at the end. Example: Carrion beetles
22 Capitate antennae are abruptly clubbed at the end. Example: Butterflies.
23 Butterflies
24 Antennal tip is expanded laterally on one side to form flat plates. Example: June beetle.
25 June beetle Polyphylla spp.
26 Geniculate antennae are hinged or bent like an elbow. Example: Bees and ants
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28 Honey bee
29 Aristate antennae are pouch-like with a lateral bristle. Example: House flies.
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31 Feathery like. Segments with long whorls of hairs. Example: male mosquito.
32 like.Hairy Example: Female mosquito.
33 Female mosquito
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