What is the function of a clypeus?
What is the function of a clypeus?
The clypeus is one of the sclerites that make up the face of an arthropod. In insects, the clypeus delimits the lower margin of the face, with the labrum articulated along the ventral margin of the clypeus. The mandibles bracket the labrum, but do not touch the clypeus.
What does clypeus mean?
Definition of clypeus : a plate on the anterior median aspect of an insect’s head.
What is clypeus in cockroach?
A clypeus is one of the sclerites or plates present at the anterior-median region of the head. It is situated between the eyes, region of the head of the cockroach.
What is a labrum in insects?
The labrum, which functions as the “upper lip” of insects with chewing mouthparts (Fig. 2.2A), forms the blood-feeding tube in mosquitoes. The mandibles and maxillae, typically used for manipulating and masticating food by arthropods with chewing mouthparts (Fig.
What does a grasshopper’s mouth look like?
The grasshopper has mandibulate mouthparts that are directed downward for biting and chewing the leaves of a host plant. Its labrum is a broad flap that serves as a front lip. Mandibles operate from side to side. They have overlapping edges that cut like scissors and molar surfaces for grinding or crushing.
What is tentorium in cockroach?
The tentorium (plural tentoria) is a term used to refer to the framework of internal supports within an arthropod head. The tentorium is formed by ingrowths of the exoskeleton, called apophyses, which fuse in various ways to provide rigid support for the muscles of the head.
How do you pronounce clypeus?
noun, plural clyp·e·i [klip-ee-ahy, -ee-ee].
What is the black stuff that comes out of a grasshopper’s mouth?
When grasshoppers are threatened, they release what’s known as “defensive regurgitation,” but you might call it grasshopper spit. It’s a fluid they release from their mouths that contains partially digested plants and digestive enzymes. Sometimes this spit is called “tobacco juice” because of its color and consistency.
Why grasshopper can stay alive after it head is put into water?
Because their respiratory system is completely unlike ours. They don’t have lungs and don’t take in air through their mouths. Instead, they breathe through holes in their abdomens (the larger back end of their bodies), called spiracles.
What is the purpose of a clipeus?
In the military of classical antiquity, a clipeus ( Latin: [ˈklɪpeʊs̠], Ancient Greek: ἀσπίς) was a large shield worn by the Greek hoplites and Romans as a piece of defensive armor, which they carried upon the arm, to protect them from the blows of their enemies.
What is the difference between a clipeus and scutum?
The clipeus was used by Romans during the Roman Kingdom and early republic but was replaced by the legionary scutum, a convex rectangular shield, in the later Roman Republic. However, the scutum disappeared during the Crisis of the Third Century. All troops adopted the auxiliary oval (and sometimes round or hexagonal) shield ( parma or clipeus ).
What happened to the Roman shield called the clipeus?
The clipeus was used by Romans during the Roman Kingdom and early republic but was replaced by the legionary scutum, a convex rectangular shield, in the later Roman Republic. However, the scutum disappeared during the Crisis of the Third Century.
What does Clipeus virtutis mean?
Clipeus virtutis, Latin for “shield of bravery”, was awarded to Augustus for his “courage, clemency, justice and piety” by the senate and displayed in the Curia Iulia.