Name the Insect or Spider
Re: Name the Insect or Spider
Excellent question, Sis. Hm-m-m-m, can anyone shed some light on this?
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Re: Name the Insect or Spider
Also interesting is that pedestrian insects such as worker ants don't have ocelli. Many flying insects do have ocelli, but others, such as most beetles and butterflies don't.
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Re: Name the Insect or Spider
Sis, you are giving the answer away
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Re: Name the Insect or Spider
They see other colour spectrums?
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Re: Name the Insect or Spider
Exactly, PJL
Most insect species have two types of eyes, simple and compound. A simple eye, which is referred to as ocello (singular) and ocelli (plural), is a small eye that is made of just one lens. Compound eyes are the larger eyes that can be seen bulging on either side of an insect’s head. These eyes contain many small lenses, sometimes thousands. Adult insects have one set of compound eyes, but many people fail to take note of the three ocelli located in a triangular formation on the top of an insect’s head. Insects that undergo a complete metamorphosis, like butterflies, beetles and flies, are born only with ocelli and no compound eyes. For these insects, compound eyes become fully developed in adulthood. Insects that undergo incomplete metamorphosis, like grasshoppers, stink bugs, dragonflies and mayflies, have both ocelli and compound eyes during their nymphal stage and into adulthood. The ocelli perceive light and movement, while compound eyes provide a general, but not detailed, panoramic picture of the surrounding environment. Most parasitic insects, such as fleas, have only ocelli and no compound eyes, as their tiny environment makes compound eyes unnecessary.
Have you ever noticed a triangular pattern of tiny eyes on the top of an insect’s head?
The three ocelli of a dragonfly
Most insect species have two types of eyes, simple and compound. A simple eye, which is referred to as ocello (singular) and ocelli (plural), is a small eye that is made of just one lens. Compound eyes are the larger eyes that can be seen bulging on either side of an insect’s head. These eyes contain many small lenses, sometimes thousands. Adult insects have one set of compound eyes, but many people fail to take note of the three ocelli located in a triangular formation on the top of an insect’s head. Insects that undergo a complete metamorphosis, like butterflies, beetles and flies, are born only with ocelli and no compound eyes. For these insects, compound eyes become fully developed in adulthood. Insects that undergo incomplete metamorphosis, like grasshoppers, stink bugs, dragonflies and mayflies, have both ocelli and compound eyes during their nymphal stage and into adulthood. The ocelli perceive light and movement, while compound eyes provide a general, but not detailed, panoramic picture of the surrounding environment. Most parasitic insects, such as fleas, have only ocelli and no compound eyes, as their tiny environment makes compound eyes unnecessary.
Have you ever noticed a triangular pattern of tiny eyes on the top of an insect’s head?
The three ocelli of a dragonfly
"Education is the most powerful weapon which you can use to change the world." Nelson Mandela
The desire for equality must never exceed the demands of knowledge
The desire for equality must never exceed the demands of knowledge
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Re: Name the Insect or Spider
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Re: Name the Insect or Spider
1. I give live birth
2. Generally, I only produce females, but may produce males under certain circumstances
3. I don’t need a male for reproduction
What insect or spider am I (common name)?
2. Generally, I only produce females, but may produce males under certain circumstances
3. I don’t need a male for reproduction
What insect or spider am I (common name)?