نتایج جستجو برای: Flower flies
تعداد نتایج: 36322 فیلتر نتایج به سال:
abstract during growing seasons of years 2006 & 2007, a faunistic survey on syrphidae family(diptera) in agroecosystems of neyshabor region, khorasan-e-razavi province was carried out. in this study, 3 collection methods: yellow water trap, malaise trap and sweeping net were applied. the results showed a large difference between different collection methods. specimens of 14 species collected by...
encouraging natural enemies by growing attractive plants is considered an effective method of pest control in organic farming. however, it is important to identify which flowers best attract beneficial insects. in this study, relative attractiveness of 16 species of flowering plants to adult hoverflies was assessed by conducting timed observations of feeding-visit frequencies. the experiments w...
The Diptera (true flies) is one of the most species-abundant orders of Insecta, and it is also among the most important flower-visiting insects. Dipteran fossils are abundant in the Mesozoic, especially in the Late Jurassic and Early Cretaceous. Here, we review the fossil record and early evolution of some Mesozoic lower brachyceran flies together with new records in Burmese amber, including Ta...
pollination and pest control are perhaps the best-known ecological services performed by hover flies. the species diversity and their abundance have an influential impact on the ecological services provided by this family. to find out species diversity of adult flower flies associated with agroecosystems in kerman province, a biodiversity survey using insect net and color water traps was conduc...
Pollination is one of the most important ecosystem services and bees the most important pollinators. As a population decline of bees has been documented in numerous regions of the world, it is crucial to develop understanding on other possible pollinators. Here, we study the potential pollination impact of Diptera, and among them Empidinae, in an alpine environment, where the abundance of bees ...
Flies (Diptera) represent one of the largest and most important groups pollinators on planet; however, little is known about interactions between flies flowers compared to well-known pollinators, such as bees. Understanding pollinator assemblages key conserving biodiversity ecosystem services, but monitoring Diptera time cost intensive. Using photographs blooming taken by photographers worldwid...
Popularly known as horse flies or deer flies, Tabanidae, has 4.400 described species distributed worldwide. Most of the females are hematophagous, but several also flower visitors. Cretaceous fossils Tabanidae scarce and fossil have plesiomorphic features unknown in modern flies. Here, we revised taxonomy from Crato Formation Brazil describing a new genus, Araripus gen. nov ., two – crassitibia...
Non-bee insects have been identified as important crop pollinators globally. However, strategies to protect and enhance pollination usually focus on supporting bees. This study examined the effects of landscape structure, location within field, floral resources pollinators’ visits mass-flowering caraway (Carum carvi L.) in boreal farmland, yield. Pollinator flowers were monitored yield measured...
—Linnaeus described 37 species of flower flies (Diptera: Syrphidae). His collection was studied, and the current status of all his flower fly names is given. Six new synonyms are established (Scaeva annulipes Zetterstedt = Eriozona erratica (Linnaeus), Musca citrofasciata DeGeer = Xanthogramma /estiva (Linnaeus), Xylota curvipes Loew = Chalcosyrphus femoratus (Linnaeus), Chrysogaster chalybeata...
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