Search results
Results From The WOW.Com Content Network
Eristalis tenax, the common drone fly, is a common, migratory, cosmopolitan species of hover fly. [2] It is the most widely distributed syrphid species in the world, and is known from all regions except the Antarctic. It has been introduced into North America and is widely established. It can be found in gardens and fields in Europe [3] and ...
Eristalis brousii, also known as the hourglass drone fly, [1] is a fly species in the Syrphidae family first described by Samuel Wendell Williston in 1882. [2] The species has become largely extinct outside of Northern Canada. Eristalis brousii are part of the hoverfly family, known for hovering above flowers to collect nectar and pollen. [3]
Overall, much of the fly is black, though the wings are mostly transparent and the posterior margins of the abdominal segments are white. Their pterostigma are dark brown and distinct. [4] [5] Female, showing the darkened, opaque, infuscated humeral cells on the leading edges of the wings, close to the base. Female
An example of a well-known hoverfly maggot is the rat-tailed maggot of the drone fly, Eristalis tenax. It has a breathing siphon at its rear end, giving it its name. [6] The species lives in stagnant water, such as sewage and lagoons. [15] The maggots also have a commercial use, and are sometimes sold for ice fishing. [16]
To be eligible, pilots must be at least 16 years old, be able to read, speak, write, and understand English, be in a physical and mental condition to safely fly a drone, and pass an aeronautical ...
Locomotor mimicry is a subtype of Batesian mimicry in which animals avoid predation by mimicking the movements of another species phylogenetically separated. [1] This can be in the form of mimicking a less desirable species or by mimicking the predator itself. [1] Animals can show similarity in swimming, walking, or flying of their model animals.
Beddard, writes Yost, explained some problems in the theory of mimicry including that, given how many insect species there are, resemblances between species could arise by chance, and that mimicry was sometimes either useless or actually harmful. In Yost's view, Beddard wanted more evidence that natural selection really was responsible.
Eristalis anthophorina, the orange-spotted drone fly, [2] is a species of syrphid fly with a Holarctic distribution. [1] [3] [4] It is a common fly in wetlands, including bogs, fens, and woodland pools. [2] In North America, it occurs throughout much of Canada and primarily in the northern parts of the United States. [2] It may be introduced in ...