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See text. Mayflies(also known as shadfliesor fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region,[2]and as up-winged flies in the United Kingdom) are aquatic insectsbelonging to the orderEphemeroptera. This order is part of an ancient group of insects termed the Palaeoptera, which ...
Chauliodinae. Male fishfly (Chauliodinae ssp). Fishflies are members of the subfamily Chauliodinae, belonging to the megalopteran family Corydalidae. [1] They are most easily distinguished from their closest relatives, dobsonflies, by the jaws (mandibles) and antennae. In contrast to the large jaws (especially in males) of dobsonflies, fishfly ...
As a term, swarming is applied particularly to insects, but can also be applied to any other entity or animal that exhibits swarm behaviour. The term flocking or murmuration can refer specifically to swarm behaviour in birds, herding to refer to swarm behaviour in tetrapods, and shoaling or schooling to refer to swarm behaviour in fish.
Unfortunately, carcasses can pile up and smell like rotting fish. A single fish fly can lay 500 to 8,000 eggs on the water surface. The fish fly season typically starts in June and can last ...
Hexagenia limbata. (Serville, 1829) [1] Hexagenia limbata, the giant mayfly, is a species of mayfly in the family Ephemeridae. It is native to North America where it is distributed widely near lakes and slow-moving rivers. [2] The larvae, known as nymphs, are aquatic and burrow in mud and the adult insects have brief lives.
Heterogyrus. Gyrininae. The whirligig beetles are water beetles, comprising the family Gyrinidae that usually swim on the surface of the water if undisturbed, though they swim underwater when threatened. They get their common name from their habit of swimming rapidly in circles when alarmed, and are also notable for their divided eyes which are ...
Bait ball. A school of bluefin trevally working a school of anchovies which may compact into a spherical bait ball if they are sufficiently threatened. A bait ball, or baitball, occurs when small fish swarm in a tightly packed spherical formation about a common centre. [1] It is a last-ditch defensive measure adopted by small schooling fish ...
The family Corydalidae contains the megalopterous insects known as dobsonflies and fishflies. Making up about three dozen genera, [1] they occur primarily throughout North America, both temperate and tropical, South America, Australia, New Zealand, Africa (particularly South Africa) and Asia. They are sizeable Megaloptera, with a body usually ...