Where is the maxilla on a grasshopper?

Where is the maxilla on a grasshopper?

There is a maxilla on each side, attaching just behind the mandibles. Then the labium serves as the lower lip, closing the food channel from below. The maxilla and labium have appendages on them called maxillary and labial palps, respectively.

How many maxilla Does a grasshopper have?

two maxillae
The stylets include two mandibles, two maxillae, the labrum, and the hypopharnyx. The labium retracts during feeding and all six stylets penetrate the host’s body. The hypopharnyx is hollow and encloses the salivary canal.

What is the function of maxillary Palp?

It functions to cut and manipulate food in the mouth. The galea is a broad, scoop-like, lobe structure, which assists the maxillary palps in sampling items before ingestion.

What is the function of Labium in insects?

The labium typically is a roughly quadrilateral structure, formed by paired, fused secondary maxillae. It is the major component of the floor of the mouth. Typically, together with the maxillae, the labium assists manipulation of food during mastication.

What is the function of the COXA in a grasshopper?

It connects them and helps the legs function so the grasshopper can move. Segment attaching the leg to the body. It holds the legs onto the body while still allowing them to move.

What is the function of the compound eye?

A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color.

What are antennae used for?

The primary function of antennae is the assessment of the chemical and physical characteristics of the environment. Detection is made with innervated chemosensory and mechanosensory organs that are arrayed on the antennae. A single antenna usually has sensory organs of several types, with different properties.

What labium means?

1 : any of the folds at the margin of the vulva — compare labia majora, labia minora. 2 : the lower lip of a labiate corolla. 3a : a lower mouthpart of an insect that is formed by the second pair of maxillae united in the middle line. b : a liplike part of various invertebrates.

What makes up the thorax of a Grass Hopper?

Thorax. The thorax, locomotion center of the grass-hopper, is a stout, boxlike structure consisting of three fused segments: the prothorax, mesothorax, and metathorax. Each segment bears a pair of legs. The second segment bears a pair of fore-wings, the tegmina, and the third segment a pair of membranous hindwings.

How is the head capsule of a grasshopper divided?

The head capsule is divided into areas by visible sutures, external ridges (carinae), or by general location (Fig. 3). The top of the head between the compound eyes is known as the vertex. Behind the vertex is the occiput, and in front of the vertex is the fastigium.

What kind of nervous system does a grasshopper have?

The head of the grasshopper is a hard capsule that contains large muscles, which operate the chewing mouthparts, and the brain and subesophageal ganglion, which serve as the main centers of the nervous system. Prominent on the outside of the capsule are a pair of antennae, two large compound eyes, and the downward directed mouthparts.

How are the lateral lobes of a grasshopper formed?

The lateral lobes usually form an angle with the disk and are separated from the disk by lateral carinae that, depending on the species, may be straight and parallel or variously incurved or outcurved. The hind margin of the disk varies from an acute angle to an obtuse angle, or may be convex, truncate, or emarginate.