The Orthoptera are an order of insects with paurometabolous or partial metamorph
osis, including the grasshoppers, crickets and locusts. Many insects in this order make sound by rubbing their wings alongside each other or their legs, the wings or legs containing rows of grooved bumps. The tympanum or ear is located in the front tibia in crickets, mole crickets, and katydids. These organisms use vibrations to locate other individuals.
Orthopterans have two pairs of wings; the forewings or tegmina are narrower than the hind wings and toughened at the base. They are held overlapping the stomach at rest. The hind wing is membranous and held folded fan-like under the forewings when at rest. They have mandibulate mouthparts, large compound eyes, antennae length varies with species. Their saltatorial hind legs are extended for jumping.
Orthopteroid species have a paurometabolous life cycle or regular metamorphosis. Most grasshoppers lay their eggs in the ground or on foliage. The eggs emerge and the young nymphs look like adults but lack wings and at this stage are often called hoppers. Grasshoppers are able to fold their wings, placing them in the group Neoptera. Through consecutive moults the nymphs develop wings until their final moult into a grown-up adult with fully developed wings.
osis, including the grasshoppers, crickets and locusts. Many insects in this order make sound by rubbing their wings alongside each other or their legs, the wings or legs containing rows of grooved bumps. The tympanum or ear is located in the front tibia in crickets, mole crickets, and katydids. These organisms use vibrations to locate other individuals.Orthopterans have two pairs of wings; the forewings or tegmina are narrower than the hind wings and toughened at the base. They are held overlapping the stomach at rest. The hind wing is membranous and held folded fan-like under the forewings when at rest. They have mandibulate mouthparts, large compound eyes, antennae length varies with species. Their saltatorial hind legs are extended for jumping.
Orthopteroid species have a paurometabolous life cycle or regular metamorphosis. Most grasshoppers lay their eggs in the ground or on foliage. The eggs emerge and the young nymphs look like adults but lack wings and at this stage are often called hoppers. Grasshoppers are able to fold their wings, placing them in the group Neoptera. Through consecutive moults the nymphs develop wings until their final moult into a grown-up adult with fully developed wings.
No comments:
Post a Comment