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Adult mayflies, or imagos, are relatively primitive in structure, exhibiting traits that were probably present in the first flying insects. These include long tails and wings that do not fold flat over the abdomen. [8] Mayflies are delicate-looking insects with one or two pairs of membranous, triangular wings, which are extensively covered with ...
Insect winter ecology describes the overwinter survival strategies of insects, which are in many respects more similar to those of plants than to many other animals, such as mammals and birds. Unlike those animals, which can generate their own heat internally ( endothermic ), insects must rely on external sources to provide their heat ...
Hoverflies, also called flower flies or syrphids, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating ...
Insects are thought to have evolved from a group of crustaceans. [2] The first insects were landbound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so. [1] The oldest insect fossil has been proposed to be Rhyniognatha hirsti, estimated to be 400 million years old, but the ...
Tomah mayflies use the streams and rivers as refuge during the summer and winter, while they inhabit the floodplains during a short period of rapid growth during the spring. [9] Therefore, the Tomah Mayfly is considered an example of river-floodplain fauna, using the stream as refuge during the dry period of the summer, and using the floodplain ...
Baetidae is a family of mayflies with about 1000 described species in 110 genera distributed worldwide. [1] These are among the smallest of mayflies, adults rarely exceeding 10 mm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small mayflies or small minnow mayflies.
Winter is the coldest and darkest season of the year in polar and temperate climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather. When ...
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 ...