Geometry.Net - Basic_D: Dragonflies & Damselflies

Dragonflies And Damselflies
Wildlife facts dragonflies and damselflies. dragonflies and damselflies may bealive in Britain today, but they still depend on us for their survival.
http://www.wildlondon.org.uk/wildinfo/dflies.htm

Extractions: © London Wildlife Trust Living fossils, dragonflies and damselflies are part of the most ancient group of insects on this planet. Originating over 300 million years ago, at a time when Britain's climate was subtropical and the vegetation very different from today's, the dragonflies and damselflies that filled the air would hove looked quite familiar to us. Most of Britain's original dragonflies and damselflies were exterminated by the cold of the last ice age after which recolonisation occurred from Europe. Since then they have watched the landscape change from one covered in primeval forest to a more open countryside as the trees were felled for farming. In this traditional agricultural landscape opportunities abounded for dragonflies and damselflies in the thousands of drainage ditches, farm ponds, canals, rivers and lakes. The picture shows an Emperor dragonfly and a common blue damselfly. Dragonflies perch with their wings extended whilst damselflies lie them along the abdomen.
A Flash Of Wings
Ed Lam's site with information about the upcoming field guide to northeastern US damselflies; highquality images of damselflies and dragonflies; guide and checklist to the Odonata of Central Park, New York City; and other images.
http://homepage.mac.com/edlam/
Find Out About Dragonflies And Damselflies - Those Jewelled Helicopters Of The P
Find out about dragonflies and damselflies, how they hunt and howto tell them apart. dragonflies damselflies. PART OF KIDS ARK.
http://web.ukonline.co.uk/conker/pond-dip/dragonflies.htm

Extractions: PART OF KIDS ARK Dragonflies and damselflies are some of Britain's most beautiful insects. But they are not just beautiful - they are also ferocious hunters. They eat other insects - in fact if you catch a dragonfly be careful not to put them with another insect (including another dragonfly) because if they get hold of it, it will go straight into their large mouths. In the past people thought that dragonflies attacked even bigger animals - this is why they were given names such as "devil's darning needle" and "horse stinger". But they were probably just catching the flies that were worrying the horses. You will find many species of dragonfly in this country, but basically there are two types of dragonfly - the darters and the hawkers. This describes the way they hunt. The darters have fatter and shorter bodies and they perch on reeds waiting for the prey to come past and then they dart out and catch them. The hawkers are longer and thinner and they patrol up and down looking out for prey on which to swoop. Both darters and hawkers are brilliant flyers and can fly very fast and outmanouvre their prey with ease. Related to dragonflies are the damselflies. These have the thin bodies of the hawkers. But they do not have as strong a flight. Another way of telling them from dragonflies is to look at what they do with their wings when they settle. While dragonflies hold their wings out flat, damselflies hold their wings upright above their body, like butterflies do.
Find Out About The Lifecycle Of Dragonflies And Damselflies - How They Mate And
PART OF KIDS ARK. dragonflies and damselflies have an interesting lifecycle. Clickon the little dragonfly to find out about adult dragonflies and damselflies.
http://web.ukonline.co.uk/conker/pond-dip/nymphs.htm

Extractions: Here is a photo of nymphs from Sam's pond. Read on to find out what they are. The first stage of the life cycle is the mating dance. The male grabs the female behind her head with a clasp at the end of his body. The female brings her abdomen forward so that the eggs are fertilized. This forms the "mating wheel". Once the eggs are fertilized they fly to water, where the female lays the eggs. Sometimes they fly with the male still holding on to the female. The eggs hatch into nymphs. You can often find them when you sweep your net in reeds and water weed. Like grown up dragonflies and damselflies the nymphs are fierce hunters eating all sorts of pond animals such as tadpoles. They have a strange lower jaw or mask as it is called. This jaw can extend to catch passing prey. The mask has hooks along its edge to help grab the prey. Nymphs have a hard shell. This helps protect them against other pond animals, but it doesn't grow with the nymph. The nymph has to moult its shell and this can be a dangerous time for the nymph. Sometimes you will find the old shell when you are pond-dipping.
Odonata; Dragonflies & Damselflies
Odonata. dragonflies damselflies. Stephen dragonflies and damselflies,like cockroaches, are one of the oldest types of insects. The
http://www.discoverlife.org/nh/tx/Insecta/Odonata/

Extractions: Discover Life All Living Things IDnature guides Insecta ... Odonata Overview Dragonflies and damselflies, like cockroaches, are one of the oldest types of insects. The only thing that has changed about dragonflies and damselflies, known as "Odonata," are their size. In prehistoric times, when dinosaurs could be found roaming the earth, odonata were as big as hawks. Odonate fossils have been discovered in Kansas, Siberia, and many other parts of the world. They had wingspans of about thirty inches and were the largest insects to ever live. ( Nature Sketches Dragonflies and damselflies are fairly large flying insects. They are often very colorful and are carnivorous - they hunt and eat meat. Even though they can fly, odonates are considered aquatic insects because they live near fresh water and their larvae (young form) actually live in water. Dragonflies have been an extremely popular subject of folklore in many cultures, most notably Japan. In Europe they have been regarded as dangerous, but they neither sting nor bite and are in fact completely harmless to humans. Actually, odonates are in some ways beneficial as predators because they can be used to control pests. The quality of the environment can be somewhat monitored by odonates because their presence is strongly affected by different factors such as waterflow, pollution, and vegetation. Odonate larvae are sometimes used as bait by fishermen, and adults are a minor food item in some countries, but other than that dragonflies are of little economic importance. (
Introduction To Species In Lincolnshire: Dragonflies And Damselflies
Return to main Species page Identification Notes Notes about theserecords Newsletters 1 2 3 dragonflies and damselflies,
http://www.lincstrust.co.uk/species/drgnfly/drgnfly.html

Extractions: Identification Notes Notes about these records Newsletters: Dragonflies and Damselflies Each species has at least one colour photograph, and county distribution map, where available. = Exceptions: Hairy Dragonfly Brachytron pratense Southern Hawker Aeshna cyanea Brown Hawker Aeshna grandis Common Hawker Aeshna juncea Migrant Hawker Aeshna mixta Emperor Dragonfly Anax imperator Black-tailed Skimmer Orthetrum cancellatum Broad-bodied Chaser Libellula depressa Four-spotted Chaser Libellula quadrimaculata Black Darter Sympetrum danae Common Darter Sympetrum striolatum Ruddy Darter Sympetrum sanguineum Yellow-winged Darter Sympetrum flaveolum Scarce Chaser Libellula fulva Red-veined Darter Sympetrum fonscolombei White-faced Dragonfly Leucorrhinia dubia Banded Demoiselle Calopteryx splendens Emerald Damselfly Lestes sponsa Scarce Emerald Damselfly Lestes dryas Red-eyed Damselfly Erythromma najas Large red damselfly Pyrrhosoma nymphula Blue-tailed Damselfly Ischnura elegans Common Blue Damselfly Enallagma cyathigerum Azure Damselfly Coenagrion puella Variable Damselfly Coenagrion pulchellum Identification Notes Notes about these records Newsletters:
Dragonflies And Damselflies - Notes About Records And Maps
Return to dragonflies damselflies Identification Notes Newsletters 1 2 3 dragonflies and damselflies Notes about these records and maps.
http://www.lincstrust.co.uk/species/drgnfly/notes.html

Extractions: Identification Notes Newsletters: Dragonflies and Damselflies Notes about these records and maps The species information presented here, notably the distribution maps, is based on the records of the Lincolnshire Wildlife Trust and the Lincolnshire Naturalists' Union. All data on which these are based has also been passed to the Regional Recorder for inclusion in the database of the British Dragonfly Society. The ambitious project to put together an illustrated county database on the World Wide Web has been achieved by members of the Lincolnshire Odonata Recording Group, notably John Redshaw and Dave Bromwich. It is hoped that these pages will be invaluable as an aid to identification and recording of the Odonata of Lincolnshire. We hope and anticipate that other counties will find the database of value. However, the primary aim is to ignite the enthusiasm of new recorders, who will get into the field to identify species and add to this initial presentation of data. Come along and join in To visit the Web site is one thing, to start to develop identification and recording skills is another matter. It is hoped that the interest generated by the Web site will encourage readers to join events organised by the BDS, LNU and the Trust. We will know this has been successful when we meet you in the field with this information on your laptop!
Dragonflies And Damselflies Of Massachusetts
dragonflies and damselflies of Massachusetts. This page was updatedon 19 March 2000. The following list is based on Chris Leahy's
http://www.odenews.net/masslist.htm

Extractions: Dragonflies and Damselflies of Massachusetts This page was updated on 19 March 2000. The following list is based on Chris Leahy's unpublished list of Massachusetts odonata (updated by Richard A. Forster) and recent field sightings. Common names are based on the list of Common Names of North American Dragonflies and Damselflies , published by the Dragonfly Society of the Americas in their newsletter Argia (volume 8, number 2, August 1996). River Jewelwing (Calopteryx aequabilis - male) (female) Superb Jewelwing ... (female) Spotted Spreadwing (Lestes congener - male) (female) Common Spreadwing ... (female) Eastern Red Damsel (Amphiagrion saucium - male) (female) Blue-fronted Dancer ... (female) Furtive Forktail (Ischnura prognata) new in 1996! Rambur's Forktail (Ischnura ramburii - male) (female) Eastern Forktail ... (female) Canada Darner (Aeshna canadensis - male) (female) Mottled Darner ... (Epiaeschna heros - male) Taper-tailed Darner (Gomphaeschna antilope) new in 1997!
Dragonflies And Damselflies Of Cape Cod
dragonflies and damselflies of Cape Cod. This page was updated on 19March 2000. The following list is based on Virginia Carpenter's
http://www.odenews.net/capecodlist.htm

Extractions: Dragonflies and Damselflies of Cape Cod This page was updated on 19 March 2000. The following list is based on Virginia Carpenter's book entitled The Dragonflies and Damselflies of Cape Cod (published by the Cape Cod Museum of Natural History in 1991) and recent field sightings. Common names are based on the list of Common Names of North American Dragonflies and Damselflies , recently published by the Dragonfly Society of the Americas in their newsletter Argia (volume 8, number 2, August 1996). Ebony Jewelwing (Calopteryx maculata - male) (female) American Rubyspot ... (female) Spotted Spreadwing (Lestes congener - male) (female) Common Spreadwing ... (Lestes dryas - male) [historic] Amber-winged Spreadwing (Lestes eurinus - male) (female) Sweetflag Spreadwing ... (female) Eastern Red Damsel (Amphiagrion saucium - male) (female) Variable Dancer ... (Coenagrion resolutum) new in 1996 Azure Bluet (Enallagma aspersum - male) (female) (pair) ... (Enallagma hageni - male) [historic] New England Bluet (Enallagma laterale - male) Little Bluet (Enallagma minusculum - male) ... (female) Furtive Forktail (Ischnura prognata) new in 1996 Rambur's Forktail (Ischnura ramburii) (female) Eastern Forktail ... (female) Canada Darner (Aeshna canadensis - male) (female) Mottled Darner ... (female) new in 1996 Spatterdock Darner (Aeshna mutata - male) (female) Black-tipped Darner ... (female) Clubtails (Gomphidae)
Dragonflies And Damselflies Photographs
damselflies and dragonflies.
http://www.bio.vu.nl/vakgroepen/thb/users/cor/dragonfly.html

Extractions: Calopteryx xanthostoma ; male on perch in territory ( male defending territory Calopteryx xanthostoma ; female ovipositing, garded by hovering male Calopteryx haemorhoidalis , Mediterranean Demoiselle; male perching in territory Anax imperator , Emperor Dragonfly; female ovipositing Libellula luctuosa River Dordogne, France. July 1986. Dordogne, France. July 1986. Provence, France. June 1991. Le Perche, France. July 1983. Pennsilvania, US. July 1992. Leucorhinia dubia , White-faced Darter; mating pair Onychogomphus uncatus , Male perching on stone in river Aeshna mixta , Migrant Hawker; Male basking in autumn sun Orthetrum coerulescens (?) , Keeled Skimmer; Male on perch in territory Cordulegaster boltonii , Golden-ringed Dragonfly; resting in forest undergowth ( close-up Dwingelo, The Netherlands. June 1991. River Tarn (near Florac) France. July 1984. Amsterdam, The Netherlands. October 1993. Provence, France. June 1991. Plansee (Reutte), Austria. July 1989. Libellula quadrimaculata
Odonata (Dragonflies And Damselflies)
Odonata (dragonflies and damselflies) of the Lower Rio Grande Valley.The list of Odonata (dragonflies and damselflies) in the LRGV
http://www.fermatainc.com/nat_odonates.html

Extractions: of the Lower Rio Grande Valley T he list of Odonata (dragonflies and damselflies) in the LRGV ( Cameron, Hidalgo, Starr, and Willacy counties resacas resacas M ost species inhabiting the northern portion of the adjacent Mexican State of Tamaulipas have been recorded in south Texas, the Rio Grande acting more as a dispersal corridor than a zoogeographic barrier for aquatic insects. South Texas representatives of Neotropical genera not widespread in the U.S. include Acanthagrion, Brachymesia Micrathyria Neoerythromma Neoneura Phyllogomphoides , and Tholymis . Some of the other as-yet unrecorded Neotropical odonates found in Tamaulipas are montane forms; these are unlikely to occur in the floodplain of the Rio Grande, but should be looked for further upriver. J ohn Abbott's range maps (see SOURCES below) were utilized to eliminate certain species of the Tamaulipan Biotic Province not known to occur in the Lower Valley. If surrounding counties were taken into consideration, a few species would be added to the list. English names were generated by Dennis R. Paulson and Sidney W. Dunkle and approved, with some modification, by the membership of the Dragonfly Society of the Americas. Common names for species recently added to the list were coined by the Common Names Committee of the DSA. Species whose U.S. range is confined to one or two counties are noted.
Dragonflies & Damselflies: Index Of The Order Odonata
Stunning insect macrophotography combined with informative descriptions. Browse through the database and develop a respect and appreciation for these
http://www.insects.org/entophiles/odonata/

Extractions: This page displays the seven Odonata records currently available within the Entophiles database. Select one of the thumbnail photographs of damselflies, dragonflies or niads below to access the descriptive record for this insect. Members of the Order Odonata are characterized by a pair of large compound eyes, an elongated abdomen and two pairs of large membranous wings. Their aquatic nymphs are voracious and jet-propelled.
DRAGONFLIES & DAMSELFLIES
damselfliesand dragonflies are members of the insect order Odonata. Bothdragonflies damselflies. Bonnie Willie In
http://www.ag.usask.ca/cofa/departments/hort/hortinfo/misc/dragonfl.html

Extractions: Bonnie Willie In the last few weeks it may appear that mosquitoes have taken over Saskatchewan. A stroll in the park can no longer be considered enjoyable. Children must wear long, baggy clothing in order to enjoy outdoor play, no matter what the temperature. But, as mosquito populations rise, the number of dragonflies also tend to increase. Some people consider dragonflies and its smaller relative the damselflies, to be ugly, bothersome pests, but upon closer inspection, one realizes the beauty contained within their fine wings, and soon begins to appreciate their aggressive role in natural mosquito control. Description: Damselflies and dragonflies are members of the insect order Odonata. Both have chewing mouthparts, bristle-like antennae, very long slender bodies with 4 long and narrow wings. The wings are net-veined of equal size or slightly smaller. Both are similar in appearance, but the damselfly tends to be much smaller and more delicate in construction. The dragonfly's body tends to be wider with stiffer wings. The only other real difference between the two is the manner in which they hold their wings. Dragonflies hold their wings perpendicular (at a 900 angle) to their body when at rest, whereas the damselfly will hold their wings behind them, parallel with the rest of their body. Adults of both the damselfly and dragonfly are usually found near water. The nymphs or immatures live in the water. Both nymphs and adults are predators, devouring mosquitoes, midges and other small annoying insects. Adult dragonflies will try to bite if handled by humans and if the dragonfly is quite large, a painful pinch may result.
Roy Beckemeyer's Odonata Page
Extensive site with miscellaneous information about dragonflies, checklists for several states in Category Science Biology Odonata - dragonflies and damselflieswindsofkansas.com. Book Label designed and used in his books by CH KennedyODONATA dragonflies damselflies. A Web Page by Roy J. Beckemeyer.
http://www.windsofkansas.com/Bodonata/odonata.html

Extractions: A Web Page by Roy J. Beckemeyer Last updated 30 August 2002 Above right: This is a copy of one of a series of dragonfly-related book labels designed by one of the pioneer North American odonatologists, C. H. Kennedy, and used by him on his books and papers. I particularly like this one, as it embodies two of my favorite flying "machines", dragonflies and airplanes. Here Kennedy compares a "night fighter" with Triacanthagyna , a crepuscular tropical dragonfly genus, the species of which typically patrol at dusk. This image was scanned from an E.B. Williamson paper, once owned by C. H. Kennedy, that is now in my library. The URL for this page is: http://www.windsofkansas.com/Bodonata/odonata.html © 2001 by Roy J. Beckemeyer The Odonate SiteRing
QUODITCH DRAGONFLIES AND DAMSELFLIES
dragonflies AND damselflies. We have quite a few different dragonflies and damselfliesat Quoditch, not all of whom have, as yet, allowed us to photograph them.
http://www.quoditch.org.uk/quoditchdragonanddamsel1.html

Extractions: We have quite a few different dragonflies and damselflies at Quoditch, not all of whom have, as yet, allowed us to photograph them. Here are some that we have seen. DRAGONFLIES This is a Yellow Ringed Dragonfly (Cordulegaster Boltoni). This is found at Quoditch from June to August. It has a wingspan of up to 105mm and a length of 125mm. You can't miss it when it flies past! It lays its eggs in the beds of fast-flowing streams. We found this one in field one about half a mile from the stream. picture to follow (we hope) We have also seen Emperor Dragonflies (Anax Imperitor). They are blue in colour and have a wingspan of up to 110 mm.. So far we haven't found one at rest to snap. Also in October 2001 a Southern Hawker was toobusy flying around field three to stop and pose. DAMSELFLIES Damselflies tend to rest with their wings folded. Some of them are very difficult to tell apart and you have to be able to see the various bands and markings on their bodies to spot the differences.
This Page Has Moved
Similar pages Biodiversity of the Rideau River dragonflies and damselflies. body. Class Insecta Insects Order Odonata - Odonates (dragonflies anddamselflies) Family Libellulidae - Common skimmers. Characteristics
http://viceroy.eeb.uconn.edu/dragonfly/dragonflies.htm
Dragonflies And Damselflies (ODONATA) Of Ontario: Part 2
Page 2. Regional Lists of. Ontario Odonata. Paul D. Pratt. damselflies. The lattergroup includes a distinctive genus of stream loving damselflies, the dancers.
http://www.netcore.ca/~prairie/odonata2.html

Extractions: Page 2 Damselflies are divided into three distinct families, the large "broad-winged damsels" of streams or rivers ( four photos ), "spreadwings" ( three photos ) and "pond damsels". The latter group includes a distinctive genus of stream loving damselflies, the dancers XX indicates records after 1976 and x indicates records prior to 1977. Recent revisions to the lists are shown in blue ONTARIO SPECIES ESS KEN LAM ELG MID HUR GRE BRU CALOPTERYGIDAE Calopteryx aequabile River Jewelwing XX XX XX x XX XX XX Calopteryx maculata Ebony Jewelwing XX XX XX XX XX XX XX XX Hetaerina americana American Rubyspot XX XX XX XX XX XX Hetaerina titia Smoky Rubyspot XX XX XX XX LESTIDAE ESS KEN LAM ELG MID HUR GRE BRU Archilestes grandis Great Spreadwing new 2002 XX Lestes australis Austral Spreadwing x x Lestes congener Spotted Spreadwing XX XX x XX Lestes disjunctus disjunctus Common Spreadwing XX XX XX XX XX XX XX XX Lestes dryas Emerald Spreadwing XX XX XX XX XX XX XX XX Lestes eurinus Amber-winged Spreadwing XX XX XX XX Lestes forcipatus Sweetflag Spreadwing XX x XX x x Lestes inaequalis Elegant Spreadwing XX XX XX XX x XX Lestes rectangularis Slender Spreadwing XX XX XX XX XX XX x XX Lestes unguiculatus Lyre-tipped Spreadwing XX XX XX XX XX x XX XX Lestes vigilax Swamp Spreadwing XX XX XX XX XX Blue-tipped Dancer
Nearctica - Natural History - Insects - Odonata
A list of the species of dragonflies and damselflies occurring in North America withboth scientific and common names. California dragonflies and damselflies.
http://www.nearctica.com/nathist/insects/odonata.htm

Extractions: Insects Dragonflies Special Segments Butterflies of North America Conifers of North America Eastern Birds Home General Topics Natural History Ecology Family Environment Evolution Home Education Home Conservation Geophysics Paleontology Commercial Organizations The order Odonata is divided into two suborders; the Anisoptera (Dragonflies) and Zygoptera (Damselflies). Nomina Insecta Nearctica lists 435 species as occurring in North America. The nymphs of dragonflies are aquatic and predaceous. Items of Interest to Odonata Enthusiasts . Ron Lyons. This site has extensive information on the Odonata with many photographs. It also includes a checklist of the odonates of California and a bibliography. Dragonfly Biodiversity . Slater Museum of Natural History. A great site with diverse information and photographs of the Odonata of North America and elsewhere. This site also contains range maps for the odonates of the Northwest and field keys for the species occurring in Washington and Alaska. A Checklist of the Odonata of North America . A list of the species of dragonflies and damselflies occurring in North America with both scientific and common names. Compiled by the Dragonfly Society of the Americas. Digital Dragonfly Museum . Forest Mitchell. A marvelous collection of images of the species of dragonflies of Central Texas. Damselflies of Texas . Forest Mitchell. A list of the damselflies of Texas with Texas distribution maps for most of them.
Damselflies And Dragonflies
Giff Beaton's dragonflies and damselflies (Odonata) of Georgia. Click on the linksbelow to view identificationoriented photos for Georgia's odonates by family.
http://www.giffbeaton.com/dragonflies.htm

Extractions: (Libellulidae) Hazards for dragonflies. Click on the thumbnail photo to see some others... Here are four very useful links concerning odonate identification or Georgia distribution. Georgia Dragonfly Survey In-progress project. Contains identification key, distribution info, and photos Dragonflies And Damselflies Of Georgia Lists which species have been recorded from which counties.
Andrew P Chick Dragonflies And Damselflies
Digital Darkroom. ThreeFeathers Design. dragonflies and damselflies.Labelled Diagram of Damselfly. Lincolnshire dragonflies. Brown Hawker
http://www.threefeathers.co.uk/natural_history/

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