1 FAOyieke FOREWARD This manual provides detailed instructions
... or living insect the ocelli are usually easily located. You will find one on each side near the bases of the antennae and the third one in a median groove on the “face” or frons of the insect. The main sclerites of the head are as follows: Vertex, the top of the head; frons, the face below and betwe ...
... or living insect the ocelli are usually easily located. You will find one on each side near the bases of the antennae and the third one in a median groove on the “face” or frons of the insect. The main sclerites of the head are as follows: Vertex, the top of the head; frons, the face below and betwe ...
Rowing locomotion by a stonefly that possesses the ancestral
... behaviour and gill morphology of a stonefly, Diamphipnopsis samali (Plecoptera), which retains abdominal gills in the winged adult stage. This species can fly, but also uses its forewings as oars to accomplish rowing locomotion along the surface of water. The abdominal gills are in contact with both ...
... behaviour and gill morphology of a stonefly, Diamphipnopsis samali (Plecoptera), which retains abdominal gills in the winged adult stage. This species can fly, but also uses its forewings as oars to accomplish rowing locomotion along the surface of water. The abdominal gills are in contact with both ...
Freshwater Invertebrates
... “plekein” – to braid (wings of adult are folded to fit under front wings) Families: Perlidae “ptera” – tail Perlodidae Leuctridae ...
... “plekein” – to braid (wings of adult are folded to fit under front wings) Families: Perlidae “ptera” – tail Perlodidae Leuctridae ...
Getting to know the insects - Oregon 4-H
... 1. Overall Body Plan. Insects are very successful animals for several reasons, including a strong exoskeleton with jointed appendages, the ability to fly, and diverse feeding habits. The exoskeleton is very rigid and strong, and is made up of many waxy layers called the cuticle. The exoskeleton offe ...
... 1. Overall Body Plan. Insects are very successful animals for several reasons, including a strong exoskeleton with jointed appendages, the ability to fly, and diverse feeding habits. The exoskeleton is very rigid and strong, and is made up of many waxy layers called the cuticle. The exoskeleton offe ...
getting to know the insects - Department of Entomology
... body size is limited by their hardened exoskeleton. Molting is the process of shedding the exoskeleton so that their overall body size can increase. Immature insects (nymphs and larvae) are vulnerable to predation during each molting process because the new exoskeleton takes time to completely harde ...
... body size is limited by their hardened exoskeleton. Molting is the process of shedding the exoskeleton so that their overall body size can increase. Immature insects (nymphs and larvae) are vulnerable to predation during each molting process because the new exoskeleton takes time to completely harde ...
MG Training Entomology 2008
... • Only reproductive caste has wings, and only near the time of nuptial flight. • Live in ground or in wood. • Many are pests of buildings. Most are beneficial, because they recycle nutrients from dead trees and other plant materials. ...
... • Only reproductive caste has wings, and only near the time of nuptial flight. • Live in ground or in wood. • Many are pests of buildings. Most are beneficial, because they recycle nutrients from dead trees and other plant materials. ...
Insect Overview
... Insects hatch during specific times Insects go through life cycles Even having a beginners knowledge about insects will greatly increase your success on the water ...
... Insects hatch during specific times Insects go through life cycles Even having a beginners knowledge about insects will greatly increase your success on the water ...
Slide 1 - Images
... parts. The first is the prothorax. It attaches to the head and has the first pair of legs. • Next is the mesothorax. It has the forewings and the second pair of legs. ...
... parts. The first is the prothorax. It attaches to the head and has the first pair of legs. • Next is the mesothorax. It has the forewings and the second pair of legs. ...
Terrestrial Mandibulates
... during fertilization May lay a few eggs and care for young or lay many eggs Eggs laid on host plant or animal ...
... during fertilization May lay a few eggs and care for young or lay many eggs Eggs laid on host plant or animal ...
Aquatic Insects
... reproductive parts, and looks just like its parents This process gives the insects a significant advantage ...
... reproductive parts, and looks just like its parents This process gives the insects a significant advantage ...
Four Winds Nature Institute
... Insects belong to a group called arthropods. Unlike you and me, with our bony internal skeletons, an arthropod’s body is covered with a tough outer shell, or exoskeleton. This exoskeleton is divided into segments that allow the critter to move. In fact, the word arthropod means "jointed legs." Arthr ...
... Insects belong to a group called arthropods. Unlike you and me, with our bony internal skeletons, an arthropod’s body is covered with a tough outer shell, or exoskeleton. This exoskeleton is divided into segments that allow the critter to move. In fact, the word arthropod means "jointed legs." Arthr ...
Phylum Arthropoda
... • Wings cannot be folded flat against the body articulation via fused plates ...
... • Wings cannot be folded flat against the body articulation via fused plates ...
File
... 2 pairs of wings, although some species may be wingless and others have only forewings. Wings are generally membranous but in some species the forewings may be hardened at the base Piercing or sucking mouthparts appearing as a sharply pointed tube known as a proboscis or rostrum, which extends f ...
... 2 pairs of wings, although some species may be wingless and others have only forewings. Wings are generally membranous but in some species the forewings may be hardened at the base Piercing or sucking mouthparts appearing as a sharply pointed tube known as a proboscis or rostrum, which extends f ...
File
... 2 pairs of wings, although some species may be wingless and others have only forewings. Wings are generally membranous but in some species the forewings may be hardened at the base Piercing or sucking mouthparts appearing as a sharply pointed tube known as a proboscis or rostrum, which extends f ...
... 2 pairs of wings, although some species may be wingless and others have only forewings. Wings are generally membranous but in some species the forewings may be hardened at the base Piercing or sucking mouthparts appearing as a sharply pointed tube known as a proboscis or rostrum, which extends f ...
Lecture 2: Insect Morphology - Introduction to Applied Entomology
... Fringed wings: Modified wing structure of the Thysanoptera (Thrips) Scales and hairs: Lepidoptera, Trichoptera, some Diptera The insect abdomen … … is comprised of 6 to 10 segments. Terminal structures include: Cerci: Paired sensory projections from the terminal abdominal segment Ovipositor: Egg-lay ...
... Fringed wings: Modified wing structure of the Thysanoptera (Thrips) Scales and hairs: Lepidoptera, Trichoptera, some Diptera The insect abdomen … … is comprised of 6 to 10 segments. Terminal structures include: Cerci: Paired sensory projections from the terminal abdominal segment Ovipositor: Egg-lay ...
Centipedes
... • Thorax has 3 pair of jointed legs, & 1 or 2 pair of wings in most species. • Abdomen is divided into 11 segments (No wings or legs attached to abdomen). ...
... • Thorax has 3 pair of jointed legs, & 1 or 2 pair of wings in most species. • Abdomen is divided into 11 segments (No wings or legs attached to abdomen). ...
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... extensive venation,and are held upright like those of a butterfly. The second segment of the thorax, which bears the forewings, is enlarged, holding the main flight muscles. ...
... extensive venation,and are held upright like those of a butterfly. The second segment of the thorax, which bears the forewings, is enlarged, holding the main flight muscles. ...
Eyewitness Insects Video Quiz
... ____ 8. Insects take in air through small holes, or spiracles, located on their __________. A. heads. B. thorax. C. abdomen. ____ 9. One of the largest insects in the world is the: A. Goliath beetle B. Stag beetle ...
... ____ 8. Insects take in air through small holes, or spiracles, located on their __________. A. heads. B. thorax. C. abdomen. ____ 9. One of the largest insects in the world is the: A. Goliath beetle B. Stag beetle ...
STANDING WATERS: Insects and Molluscs
... 1. The mouthparts form a beak which is used to pierce the prey and suck the fluids out. 2. The forewings are thick at the base instead of being membranous throughout (as other insects wings are). ...
... 1. The mouthparts form a beak which is used to pierce the prey and suck the fluids out. 2. The forewings are thick at the base instead of being membranous throughout (as other insects wings are). ...
Aquatic Insects
... All odonates are predators as both nymphs and adults •Eggs –larva –adult •Predacious •No external gills •Longer body on damselflies (wings up) •Dragonflies (wings down) ...
... All odonates are predators as both nymphs and adults •Eggs –larva –adult •Predacious •No external gills •Longer body on damselflies (wings up) •Dragonflies (wings down) ...
Entomology - Gloucester County Virginia
... About 28 different orders of insects Divided into these orders based on structure of wings and mouthparts and their type of metamorphosis Ametabolous: growth without change Paurometabolous: incomplete or gradual ...
... About 28 different orders of insects Divided into these orders based on structure of wings and mouthparts and their type of metamorphosis Ametabolous: growth without change Paurometabolous: incomplete or gradual ...
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... • There are about one million known insect species but there may be as many as 30 million more species to be discovered. • Insects make up about 85 percent of all animals species. • Insects are part of a larger group of invertebrates (animals without backbones) called arthropods. They have a tough, ...
... • There are about one million known insect species but there may be as many as 30 million more species to be discovered. • Insects make up about 85 percent of all animals species. • Insects are part of a larger group of invertebrates (animals without backbones) called arthropods. They have a tough, ...
The Evolution of Flight Entognatha and the Paleoptera
... b. Nymphs are entirely aquatic, predaceous, and can live for several years before maturing into an adult. The have elaborate labial masks used in prey capture. Dragonfly nymphs lack external 'gills' instead drawing water into the rectum where gas exchange occurs. They can also forcibly expel this wa ...
... b. Nymphs are entirely aquatic, predaceous, and can live for several years before maturing into an adult. The have elaborate labial masks used in prey capture. Dragonfly nymphs lack external 'gills' instead drawing water into the rectum where gas exchange occurs. They can also forcibly expel this wa ...
Dragonfly
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A dragonfly is an insect belonging to the order Odonata, suborder Anisoptera (from Greek ανισος anisos ""uneven"" + πτερος pteros, ""wings"", because the hindwing is broader than the forewing). Adult dragonflies are characterized by large multifaceted eyes, two pairs of strong transparent wings, sometimes with coloured patches, and an elongated body. Dragonflies can be mistaken for the related group, damselflies (Zygoptera), which are similar in structure though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold the wings folded at rest, along or above the abdomen. Dragonflies are agile fliers while damselflies have a weaker, fluttery flight. Many dragonflies have brilliant iridescent or metallic colours produced by structural coloration, making them conspicuous in flight. An adult dragonfly eye has nearly 24,000 ommatidia.Fossils of very large dragonfly ancestors in the Protodonata are found from 325 million years ago in Upper Carboniferous rocks; these had wingspans of up to about 750 mm (30 in). There are about 3000 species of Anisoptera in the world today. Most are tropical, with fewer species in temperate regions.Dragonflies are predators, both in their aquatic larval stage, when they are known as nymphs or naiads, and as adults. Several years of their life are spent as a nymph living in freshwater; the adults may be on the wing for just a few days or weeks. They are fast agile fliers, sometimes migrating across oceans, and are often but not always found near water. They have a uniquely complex mode of reproduction involving indirect insemination, delayed fertilisation and sperm competition. During mating, the male grasps the female at the back of the head or on the prothorax, and the female curls her abdomen under her body to pick up sperm from the male's secondary genitalia at the front of his abdomen, forming the ""heart"" or ""wheel"" posture.Loss of wetland habitat threatens dragonfly populations around the world. Dragonflies are represented in human culture on artefacts such as pottery, rock paintings and Art Nouveau jewellery. They are used in traditional medicine in Japan and China, and caught for food in Indonesia. They are symbols of courage, strength and happiness in Japan, but seen as sinister in European folklore. Their bright colours and agile flight are admired in the poetry of Alfred, Lord Tennyson and the prose of H. E. Bates.