Arachnida & Insects Flashcards
What is the Greek name for insects?
Hexapoda
Basic structure of an insect?
Head, thorax, abdomen.
What is the ocellus?
The head.
What are spiracles?
A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids to allow air to enter the trachea.
What are the two types of flight?
Asynchronous - one set of wings
Synchronous - two sets of wings
What is ommatidia?
The compound eyes of arthropods like insects, crustaceans and millipedes are composed of units called ommatidia.
what is setae?
In biology, setae, from the Latin word for “bristle”) are any of a number of different bristle- or hair-like structures on living organisms.
What is sensilla?
A sensillum (plural sensilla) is an arthropod sensory organ protruding from the cuticle of exoskeleton, or sometimes lying within or beneath it. Sensilla appear as small hairs or pegs over an individual’s body. Inside each sensillum there are two to four sensory neurons. These neurons, or receptors, gather information about environment the arthropod is in.
What are the mouth parts?
Mandibles
Labrum - upper lip
Maxilla
Lambium - lower lip
What is Ecdysis?
A type of moulting.
What are the four main orders of Insects?
Coleoptera - Beetles
Diptera - Flies
Hymenoptera - Bees , wasps, ants
Lepidoptera - Butterflies & moths
What is odonata?
Dragonflies and damselflies
What is elytra?
A hardened first pair of wings.
What is Pteron?
(teron)
Greek for Wing.
What is dermaptera?
Earwigs
What is cerci?
Pincers on the end of an earwigs abdomen.
What is Hemiptera?
True bugs or half winged.
What is orthoptera?
Grasshoppers, locusts, crickets, weta.
What is blattodea?
Cockroaches and termites.
What is mantodea?
Mantises.
What is phasmatodea?
Stick insects and leaf insects.
What type of circulatory system do insects have?
Open
Name some features that set insects apart from other arthropods?
6 legs
One pair of antennae
Uniramous legs
What is the purpose of the gizzard?
Mechanical grinding of food
What order do beetles belong to?
Coleoptera
What order do butterflies & moths belong to?
Lepidoptera
Name the appendage used for egg-laying
Ovipositor
