Blood-sucking insects feed from a range of different host animals. They prefer sweets, starches, and meats, but if food grows scarce, they may potentially bite humans. Most bedbugs feed on their hosts while they are asleep. Lice are small wingless insects that make their home in human hair and feed on very small amounts of blood from the scalp. Sleep tight, don’t let the bedbugs bite. They then defecate near where they bite and the bite itches, which causes the victim to scratch and get the feces … To feed on their hosts, leeches use their … The majority of leeches live in freshwater environments, while some species can be found in terrestria and marine environments as well. There are no collective nouns for verbs. The word 'flees' is the third person present of the verb to 'flee' (to run away from). Rationally speaking, running off with a little blood is a lot less destructive and efficient than ripping the legs off an antelope. Cockroaches are omnivores that eat both plants and animals and are known to eat almost anything. Blood chemistry and nutrition might also lead to a preference. Vampires are all around us — in the form of insects. Fleas. Almost 700 species of leeches are currently recognized, of which some 100 are marine, 90 terrestrial and the remaining freshwater taxa. Even fewer will actually feed on human blood. They can be transferred from person to person and through the use of contaminated items such as brushes or pillows. Sometimes called the “perfect parasite,” these tiny insects feed at night, often while their victim is asleep, and their bites are painless due to an anesthetizing agent. Bedbugs are small wingless insects that feed on the blood of warm-blooded animals. Both male and female bed bugs feed on blood and at least one blood meal is required for the bed bug to molt to the next stage of life. But those few human blood suckers are some of more prolific insects on the planet. Mosquitoes are merely ONE genus belonging to a vast array of blood feeders. Blood-sucking bugs, or bugs that feed on human blood, are parasites that often prefer warm-blooded, mammalian hosts, including people and their pets. The front wings are vestigial and reduced to pad-like structures. Insects such as the carpet beetles are great decomposers of organic matter. It is estimated there are over 10 million species of insects and of those, only about 14,000 feed on blood. For obvious and often painful reasons, we are aware of the fact that many of them feed from mammals, but many other host animals are also exploited including birds, reptiles, amphibians and fish, and even insects, arachnids and annelids (Hocking 1971). Some insects display a rudimentary sense of numbers, such as the solitary wasps that prey upon a single species. Some insects display a rudimentary sense of numbers, such as the solitary wasps that prey upon a single species. Leeches are segmented worms that feed on blood from vertebrate and invertebrate animals. 10. : 87–94 Insects that feed on blood have special sensory structures that can detect infrared emissions, and use them to home in on their hosts. Mosquitoes are merely ONE genus belonging to a vast array of blood feeders. Insects that bite and draw blood FEED on the blood they take out of their victim. : 87–94 Insects that feed on blood have special sensory structures that can detect infrared emissions, and use them to home in on their hosts.