Search results
Results From The WOW.Com Content Network
Aquatic insects or water insects live some portion of their life cycle in the water. They feed in the same ways as other insects . Some diving insects, such as predatory diving beetles , can hunt for food underwater where land-living insects cannot compete .
It has also been seen in slow-moving backwaters of river systems such as the Allegheny River, the Ohio River and the Tennessee River in the United States and the Wang Thong River of Thailand. It is not generally seen in fast flowing streams or rivers. The medusa's appearance is sporadic and unpredictable from year to year.
Belostomatidae is a family of freshwater hemipteran insects known as giant water bugs or colloquially as toe-biters, Indian toe-biters, electric-light bugs (because they fly to lights in large numbers), alligator ticks, or alligator fleas (in Florida). They are the largest insects in the order Hemiptera. [1]
The larvae of dobsonflies live along the rocky bottoms of streams. Chiefly active during the night , they ambush prey in the middle of riffles which supply plenty of oxygen and stir up prey. [ 12 ] They are generalist predators; dissections have revealed that they primarily eat aquatic immatures of mayflies , caddisflies , stoneflies , and ...
Asellus aquaticus can breed throughout the year, if the temperature is high enough: they do not breed under cold temperatures. Maturity can be reached in few months under warm summer temperatures, but maturation may take as much as two years in permanently cold water bodies (e.g., high-latitude or mountain waters). [3]
Caddisfly cases are open at both ends, the larvae drawing oxygenated water through the posterior end, over their gills, and pumping it out of the wider, anterior end. The larvae move around inside the tubes and this helps maintain the water current; the lower the oxygen content of the water, the more active the larvae need to be.
Veliidae is a family of gregarious predatory insects in the suborder Heteroptera. They are commonly known as riffle bugs, small water striders, or broad-shouldered water striders because the segment immediately behind the head is wider than the rest of the abdomen. Species of the genus Rhagovelia are also referred to as ripple bugs.
Naucoridae is a small family of insects commonly known as the creeping water bugs and saucer bugs. They are similar in appearance and behavior to Belostomatidae (giant water bugs), but considerably smaller, at 0.5–2 cm (0.2–0.8 in) long. Naucoridae are found around the world, but the greatest diversity is in tropical regions.