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Red-mantled Saddlebags
The red-mantled saddlebags or red saddlebags (''Tramea onusta'') is a species of skimmer dragonfly found throughout the eastern United States. It has translucent wings with red veins, and has characteristic dark red blotches at their proximal base, which makes the dragonfly look as if it is carrying saddlebags when flying. The last two bands and the cerci of these dragonflies are black. While male red-mantled saddlebags have a distinct red body, females will typically have light brown or pale orange bodies, as well as lighter white and brown eyes. References External links Red saddlebags at EOL Libellulidae Insects described in 1861 {{dragonfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hagen
Hagen () is the Largest cities in Germany, 41st-largest List of cities and towns in Germany, city in Germany. The municipality is located in the States of Germany, state of North Rhine-Westphalia. It is located on the south eastern edge of the Ruhr area, 15 km south of Dortmund, where the rivers Lenne and Volme (met by the river Ennepe) meet the river Ruhr (river), Ruhr. As of 31 December 2010, the population was 188,529. The city is home to the FernUniversität Hagen, which is the only state-funded distance education university in Germany. Counting more than 67,000 students (March 2010), it is the largest university in Germany. History Hagen was first mentioned around the year 1200, and is presumed to have been the name of a farm at the confluence of the Volme and the Ennepe rivers. After the conquest of in 1324, Hagen passed to the County of Mark. In 1614 it was awarded to the Margraviate of Brandenburg, according to the Treaty of Xanten. In 1701 it became part of the K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libellulidae
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded (as Silsby does), there remains a family of over 1000 species. With nearly worldwide distribution, these are almost certainly the most often seen of all dragonflies. The genus ''Libellula'' is mostly New World, but also has one of the few endangered odonates from Japan: ''Libellula angelina''. Many of the members of this genus are brightly colored or have banded wings. The related genus ''Plathemis'' includes the whitetails. The genus ''Celithemis'' contains several brightly marked species in the southern United States. Members of the genus ''Sympetrum'' are called darters (or meadowhawks in North America) and are found throughout most of the world, except Australia. Several Southern Hemisphere species in the gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saddlebag
Saddlebags are bags that are attached to saddles. Horse riding In horse riding, saddlebags sit in various positions, on the back, side, or front of the saddle. Most attach to the saddle by straps and ties. They can be made from various materials. Although leather was the traditional material, it is heavier and requires more maintenance than many modern versions. There are several types: Pommel bags (which sit in front of the saddle), traditional paired saddlebags (which lie on the hips of the horse, on either side of the cantle), and assorted smaller bags such as a cantle bag (a small tube-like bag that sits just behind the saddle), or a single small saddle bag that may be carried on the off-side (right hand side) of an English saddle. Pack animal Pannier-style bags are sometimes fitted over a pack saddle used for packing gear on a horse or other pack animal (often, a mule or donkey) rather than for carrying a rider. In Turkish Anatolia, Iran and Baluchistan, saddlebags are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cercus
Cerci (singular cercus) are paired appendages on the rear-most segments of many arthropods, including insects and symphylans. Many forms of cerci serve as sensory organs, but some serve as pinching weapons or as organs of copulation. In many insects, they simply may be functionless vestigial structures. In basal arthropods, such as silverfish, the cerci originate from the eleventh abdominal segment. As segment eleven is reduced or absent in the majority of arthropods, in such cases, the cerci emerge from the tenth abdominal segment. It is not clear that other structures so named are homologous. In the Symphyla they are associated with spinnerets. Morphology and functions Most cerci are segmented and jointed, or filiform (threadlike), but some take very different forms. Some Diplura, in particular ''Japyx'' species, have large, stout forcipate (pincer-like) cerci that they use in capturing their prey. The Dermaptera, or earwigs, are well known for the forcipate cerci that most o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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