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Insect Morphology and SystematicsInsect Morphology and Systematics
2. HYDROPHILIDAE (Water scavenger beetles)
They are black or dull coloured.
Body is convex above and flattened below.
Antenna is clubbed and kept beneath the prothorax.
Maxillary palps are long and look like antennae.
Legs are evenly placed in the anterior part of the body.
Middle legs are flattened and suited for swimming.
Metasternum
is produced into a spine posteriorly.
Air is stored beneath the elytra and over the undersurface of the body.
Adults and larvae feed on decomposing vegetable matter.
Insect Morphology and Systematics
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