Nepidae are brown insects, but some species have a bright red abdomen that can be seen when the wings are open. Their body is broad and flat (subfamily Nepinae) or long and thin (subfamily Ranatrinae).

Oct 27, 2021 · An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.

Oct 30, 2021 · Water scorpions make up the insect family Nepidae, which is a family of aquatic Heteropteran insects that come from the insect order Hemiptera. There are approximately 150 different species of water scorpion found worldwide, 13 …

Water scorpion, any of the approximately 150 species of aquatic invertebrates of the family Nepidae (order Hemiptera). The water scorpion resembles a land scorpion in certain ways: it has scythelike front legs adapted for seizing prey and a long, thin, whiplike structure at …

Oct 1, 2018 · Water scorpions aren't scorpions at all, of course, but their front legs do bear a passing resemblance to scorpion pedipalps. The family name, Nepidae, derives from the Latin nepa, meaning scorpion or crab. You don't need to worry about being stung by a water scorpion – it has no stinger.

The Nepidae (Pl. II. 3) are most closely related to the Belostomatidae, belonging to the same clade. The body is cylindrical or flattened, with a siphon to pierce the water surface for air (Figure 10). Their bodies resemble sticks and leaves, allowing them to remain motionless as sit-and-wait predators along pond or stream margins, waiting for ...

Nepidae is a family of exclusively aquatic Heteropteran insects in the order Hemiptera. They are commonly called waterscorpions for their superficial resemblance to scorpions, due to their raptorial forelegs and the presence of a long slender process at the posterior end of the abdomen, resembling a tail.

Habit: Nepidae species are commonly known as ‘water scorpions” due to the long siphon at the end of their abdomen. They breathe air from an air store concealed beneath the wings that is replenished by way of a breathing tube (the siphon). The bug holds the siphon to the water surface like a snorkel, without actually returning to the surface.

Nepidae is a family of exclusively aquatic Heteropteran insects in the order Hemiptera. They are commonly called water scorpions for their superficial resemblance to scorpions, due to their raptorial forelegs and the presence of a long slender process at the posterior end of the abdomen, resembling a tail.

The Nepidae, or water scorpions, are a cosmopolitan nepomorphan family comprising 15 genera and 268 species (Slater 1982; Zoological Record 1980–1994; Henry 2009; Polhemus, J.T. pers. comm.). Water scorpions are medium to large sized bugs, ranging in length from 15 to 45 mm.