Simple eyes. They have high light sensitivity but low resolution, so they function in response to light changes.
What are ocelli?
100
The most basic type, and is the least specialized. Requires mandibles.
What is biting-chewing?
100
This appendage is heavily sclerotized with both cutting and grinding surfaces.
What is the mandible?
100
The most distinct part of the insect head. Consists of regularly placed hexagon shaped receptors and allow the insects to see, both colour and UV.
What are the compound eyes?
100
The three segments of the thorax, anterior (closest to the head) to posterior.
What are the pro, meso and metathorax?
200
It is a sensory organ with three parts; the scape, pedicel and flagellum.
What is the antennae?
200
Found on a limited number of parasitic adult flies (such as the horse fly), the mandibles and maxillae have elongated and end in a sharp point. There is a pseudotrachea to absorb the fluid once the host has been cut.
What is cutting and sponging?
200
This is the elongated galea of two maxillae, held together and used to suck nectar and water; found on butterflies.
What is the proboscis?
200
The hexagonal shaped receptors of the compound eyes. Each unit is called an ____.
What is ommatidia?
200
This is the ventral (belly) sclerite, or protective plate, on the insect's thorax.
What is the sternum?
300
Considered as the upper lip.
What is the labium?
300
The labium has a fleshy labellum, and the mandibles/maxillae are reduced or lost. This type is often found in house flies.
What is sponging?
300
These are used to position food in the vicinity of the mandibles, with some chemosensory function.
What are maxillae?
300
These two parts of the antennae are moved by muscle; are are the first two portions at the base.
What are the scape and pedicel?
300
This is the dorsal (back) sclerite, or protective plate on the thorax.
What is the tergum?
400
The lower lip, and completes the pre-oral cavity.
What is the labrum?
400
This type requires a highly specialized proboscis; elongated galea of two maxillae held together by hooks and spines. The mandibles and labium have been reduced/lost. Found in Lepidoptera (butterflies/moths).
What is siphoning?
400
In piercing and sucking mouthparts, the mandibles and maxillae are modified to form this structure. They can either be elongate, short or retracted.
What are stylets?
400
Is the rest of the antenna. This is held turgid by blood pressure and is moved by the muscles of the first two parts of the antenna.
What is the flagellum?
400
This is the lateral (side) sclerite. This provides some protection and is the flexible connection between the top and bottom sclerites of the insect.
What is the pleura?
500
This is a fleshy mass on the labium of species with sponging mouth parts.
What is the labellum?
500
Mandibles and maxillae have been modified to form one of three types of 'beaks' (elongate is the most common) enclosed by a sheath. This type is found in a variety of organisms, including aphids and mosquitoes.
What is piercing and sucking?
500
The glossae, or tongue, of the labium is surrouned by the galea of the maxillae; this is used to draw up nectar. This type of mouthpart is found in bees.
What is chewing and lapping?
500
These are the photoreceptors found on larvae, and are structurally intermediate between ocelli and compound eyes. They have weak perception and resolution, but high light sensitivity.
What are stemmata?
500
The hardened wing cases found on beetles and other insects called ____. This protects the wings; in some cases it is only a half casing, and given the prefix 'hemi.'