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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]
Bugs of the genus Belostoma prefer lentic habitats with submerged or emergent vegetation and for overwintering the adults fly to ponds and slow-moving waters. During the springtime and the early summer they often fly to electric light-sources, thus they are also called "electric-light-bugs". [6] The life circle contains one generation a year.
Lethocerus sp. with wings open. Unlike giant water bugs in the subfamily Belostomatinae, females do not lay the eggs on the backs of males. [4] Instead, after copulation (often multiple sessions [5]) the eggs are laid on emergent vegetation (rarely on man-made structures) high enough above the waterline that the eggs will not be permanently submerged.
German company Vosschemie produces a hull paint called Haifischhaut, which reduces the drag effect and allows ships to glide more easily through the water. Image credits: Nigel Mander #11 Robotic Arm
Lethocerus americanus, sometimes called the electric light bug, toe biter or fish killer, [1] is a giant water bug in the family Belostomatidae, native to southern Canada and the United States (north of 35°N; other Lethocerus species are found southwards). [2] It typically has a length around 5–6 cm (2.0–2.4 in). [3]
Output of a computer model of underwater acoustic propagation in a simplified ocean environment. A seafloor map produced by multibeam sonar. Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water, its contents and its boundaries.
However, this range is an average and will slightly change from individual to individual. Sound waves that have frequencies below 16 Hz are called infrasonic and those above 20 kHz are called ultrasonic. Sound is a mechanical wave and as such consists physically in oscillatory elastic compression and in oscillatory displacement of a fluid.
The water bug or water beetle is known as alukap in Ilokano language. It is sauteed or fried in oil, garlic, onions and tomatoes, or roasted, after the wings and legs have been removed, and eaten as a viand for steamed rice or as a finger food with liquor. The same is done in the Visayas region where it is called obus in the Visayan language. [6]