Search Results for: Head louse

Louse flies

…Although louse flies is a type of fly, it is very similar in appearance to louse. A louse fly has a flattened body instead of a spherical or egg-shaped body that most flies have. Its skin is also leathery instead of the familiar, metallic-shiny surface of many flies. The louse fly has strong legs. Unfortunately, there are several species of louse flies, such as the lizard fly, also called Crataerina pallida, and the swallow bite, also called Crata…

Ectoparasites

…ouse sucks blood through contact. There are two species of human lice: the head louse, Pediculus humanus capitis, which lives in the scalp hair and the body louse, Phcorporis, which lives on the body and clothes. The crab louse, Phthirus pubis. P.3. The crab louse sucks blood and lives in the body hair of humans, especially on the abdomen. The crab louse is transmitted by intimate contact. The bed bug, Cimex lectularius. P.41. The bed bug feed on…

Head lice

…case in the insect world, the male is slightly smaller than the female. A head louse is equipped with three sets of legs in front of the body, and each leg ends in a kind of claw. This claw is designed to be ideal for gripping a strand of hair. The head lice have no wings and can therefore neither fly nor jump. Their head is equipped with a pair of antennae and small eyes. The mouth parts of the lice are built to bite and suck blood. Their appeti…

Crab louse

…pests but also a parasites that feed on human blood. Appearance The small louse is perfectly adapted to its peculiar way of life and therefore has no wings. Its head is designed for its blood-sucking purpose, which is why the mouthparts are built to stick and suck with, while the eyes are quite reduced. Also, the body bears the imprint of this purpose, and its hind legs end in a kind of claw or powerful claws that help the louse to be able to gri…

Head louse

Head louse (Latin: Pediculus humanus var. capitis) The head louse attaches its eggs firmly to hairs close to the scalp. The eggs are extremely tenacious and can only be removed from the hair by using a fine comb and much effort. Even frequent washing of the hair may not be sufficient to remove them. The empty eggshells remain on the hair and move outwards as it grows. Under a lens they can be distinguished from unhatched eggs, because they are m…

The head louse

Fig 4. Head lice, male and female. (Grundy) Head louse The head louse, Pediculus humanus capitis, is a small, flat and elongated insect. The adult females measure 2.4 to 3.3 mm in length. Lice in other stages of their life and the males are smaller. In the front, there is a small head with a mouth and two antennae and two simple eyes. The chest has six legs. Each leg ends in a claw that can grasp a hair. The hind parts are multiarticulate and rel…

The crab louse

…Crab louse Crab louse The crab louse is called Phthirus pubis or pubic lice. It’s easy to tell the difference between human lice and crab lice. The human louse has a large abdomen. The abdomen of the crab louse is wider than it is long and has small protuberances on each side. Crab louse nits are smaller than those of the head louse and the body louse, and the crab louse uses more glue to stick the nit to the hair….

The body louse

The body louse, Pediculus humanus corporis, is similar to the head louse. The differences that separate it from the head louse are small and uncertain. Even specialists may find it difficult to distinguish between the two subspecies. Body lice lay their nits in the clothes etc. we wear on the body. One can assume that lice on clothes are body lice. Body lice can be frequent in soldiers, refugees, who aren’t well-groomed etc. In Denmark today, bod…

Sucking lice

…mportant part of family life. Two types of louse are adapted for living on man: the human louse and the crab louse. The human louse occurs in two forms, the body louse and the head louse, and these are very similar to one another. In fact they can only be distinguished with certainty by their habits….

Lice in dogs

…und. The dog’s biting lice are up to 1.7 mm long and have a large, rounded head. They live on the head, neck and ears of the dog. With well-groomed, well-nourished dogs, this species of canine lice is rare. Common to the two types of canine lice is that both glue their nits onto the hair close to the skin. There are three stages of nymphs as well as both female and male lice. The nits hatch after about a week but the nymph stages lasts longer than…

Crab louse bites

…t all the time. That is probably why they do not tolerate being away from their host for long periods of time. A single day without access to blood will cause them to die of hunger. Crab louse bites and their symptoms are similar to those from the head louse. However, crab louse bites are characterized by blue-colored spots, which may appear where the lice bite. The spots, which are deep in the skin, appear a few hours after the bites. They may be…

Body louse

…the seams and in similar sheltered places. It is somewhat hardier than the head louse and at 23° C it can live for 4 days without access to blood. The best conditions for the spread of these lice are when humans are living close together under primitive conditions. They do not thrive among people who maintain a good standard of hygiene with frequent changing and washing of clothes. Body lice are important as vectors of typhus fever, trench fever a…

Spreading of head lice

…because of illness or high age, have released its grip on the hair. Naturally, these lice cannot be infectious. Loose nits. Hair with live nits can also fall off into the surroundings. The chance of a nit, which ends up on the floor or furniture, hatches and the nymph finds a head before dying of starvation or dehydration and afterwards survives until adulthood and find a partner of the opposite sex in the same head, is so small that, in actualit…

Crab louse

…rows, and indeed they have even been found among the very fine hair on the heads of infants. A female crab louse lays about 25 eggs, each firmly fixed to its own hair. The development from egg to adult takes about three weeks. Crab lice are sedentary. Having found a suitable place a louse will seize the host’s hair, bore into the skin with its mouth parts and suck blood several times in succession, with only short intervals. It will die within abo…

Louse flies

…Fig. 43. The swift louse fly (left) and the Stenepteryx hirundinis (right). (Hutson). Louse flies The louse flies, of the family Hippoboscidae. They are obligate parasites of mammals and birds. They are flattened with leathery skin, and their legs have powerful claws that they use to hang onto their hosts. The species, which are most frequently found indoors, include the swift louse fly, Craetaerina pallida and the Stenepteryx hirundinis….

Index

…is Haemodipsus ventricosus Haemopsis sanguisuga Hallucination Harvest mite Head louse Hedgehog flea Hepatities Hexicid Hippoboscidae Hirudinea Hirudo medicinalis Honey bee Hornets Horse fly Horse leech Hoyers medium Itch mites Ivomec veto Ixodes ricinus Ixokan Killer bees Kissing bug Klofenotan Kvassia Larder beetle larvae hair Lepidoglyphus destructor Lepidoptera Light traps Linognathus setosus Listrophorus gibbus Louse Louse flies Lyctocoris cam…

Lice

…s a species of louse that infects humans. It comprises two subspecies: the head louse and the body louse. They only live on humans. Our lice lead a very discreet life. They are part of our special parasite fauna and for humans – as a species – it is natural to have lice. When most of us are free of lice from time to time, it is because we have chosen to fight them. Without active control we would all have lice. The crab louse is another species of…

Suspicion of head lice

…is kind of “bite mark” can occur for various reasons. One of them may be a head louse. 2. Itching in your hair – more than usual – brings lice to mind. Be aware of children who are scratching themselves. There may be other causes of itching of the hair (e.g. ringworms, etc.) so itching in the hair always deserves further investigation. 3. Small black grains, as a fine sprinkling of pepper, on clothing at the back of the neck and on shoulders or on…

Dog louse

Dog Louse ( Latin: Linognathus setosus ) Although very similar to the human louse, there is very little chance of a human becoming infested with dog lice. Like their relatives these parasites are very much tied to their own specific host. They mostly live on the back, flanks and at the root of the tail of dogs. In addition to the irritation that they cause these lice are also intermediate hosts for one of the dog’s intestinal worms. The infection…

Lice bites

…nd sharp chitin teeth in the front of the tube. They act as barbs when the louse head is anchored to the skin. Then three long, elastic rods are shot through the tube and into the skin. The rods form a triangular channel leading saliva to the location, the rods hit. The louse sucks the blood using a muscle pump in the throat. Lice suck blood at least twice a day and preferably five times. At room temperature, the lice can only survive for two days…

Life cycle

…suck blood at night. The nits are also laid during the nighttime when the head is at rest. A female louse can lay 8 nits every night, and has to mate before each nit lying. There are usually only a few males and the most virile of them have busy nights, having to mate dozens of times and have time to suck blood in between. During the day, lice spend their time eating a little, and in between the small meals, there are long periods of sitting stil…

Arthropod structure

…y. Millipedes and centipedes have a distinct head but the thorax and abdomen are united. The body consists of numerous segments, and each of these has one pair of legs, or in the true millipedes two pairs. Insects are the dominant group within the arthropods. The body is in three parts: head, thorax and abdomen. The head carries the mouthparts, eyes and antennae. The thorax has three segments, each with a pair of legs, and in most insects there is…

Life cycle

…erwintering pupae, while the birds have migrated south during the winter. From the nests, the lice flies can sometimes stray into homes. This probably only happens if the birds, for some reason, leave the nest during the breeding season, or if the bird do not return to a nest in which louse flies are overwintering. Louse fly innovations happen in the months from April to August, mostly in June. Furthermore, you can get in contact with louse flies,…

Frequency

… 0 1 0 0 Thrips 0 1 0 0 0 The crab louse 0 0 0 0 0 1 Bird mites 0 0 0 1 0 Hedgehog fleas 0 0 0 1 0 0 Head louse (Lat. Pediculus humanus capitis) 0 1 0 0 Bedbugs 0 0 0 1 0 0 Itch mites…

Occurrence

…ted to sparse hair. The scalp hairs are too close (about 220 hairs / cm 2). The pubic hair (about 34 hairs / cm 2) is better suited for crab louse. The crab louse primarily live in pubic hair but is also seen in the hair on the chest and in armpits. On the head, crab louse live in the hair lines (neck and temples), in the scalp hair (thin-haired men), in beards and (especially with children) in eyebrows and eyelashes. There can be many crab lice i…

Lice in cats

…e species of feline lice: Felicola subrostrata, also called feline chewing louse. This louse will get up to 1.3 mm long and is characterized by its triangular head. As a biting lice, it is quite peaceful as it eats skin flakes, etc. This does not usually bother the cat. However, biting lice are active, and if there are many of them it bothers the cat. The feline chewing lice are uncommon in domestic, well-nourished cats and more common in wild cat…

Index

…Gracilia minuta Grain weevil Great slug Grey fleshfly Grey worm Harvestmen Head louse Hercules ant Hide beetles Hippoboscidae Hirundo rustica Hofmannophila pseudospretella Honey bee Hornet House centipede House cricket House longhorn faeces House martin House mouse droppings House sparrow Housefly Hoverfly Human flea Hyle sinus fraxini Hvlobius abietis Hylotrupes bajulus Ichneumons lnachis io Indian meal moth lsoptera Itch mite lxodes ricinus Jack…

Occurrence

…rom the documents sent to the Danish National Pest Infestation Laboratory, head lice are an autumn phenomenon that culminates in September. Periodic variation. We do not know why head lice during periods become more frequent. A simple explanation of the change in the frequency in lice infections could be that the lice, which are not effectively controlled will in more and more infections. If there is a period of time with too many lice infestation…

How to comb lice out of your hair

…u are up against and what signs to look out for and whether it is an adult louse or a nymph. The head lice go by the Latin name Pediculus capitis and are a parasite that feeds on the blood of humans. The lice are small, flat insects that have an elongated oval shape. The adult lice are between 2 and 3 millimeters long, while a newly hatched lice is only 0.5 – 1 millimeter long. The lice can neither jump nor fly but move around the scalp by graspin…

Insect appearance

…Many insects also have some small eyes, 1-3 of them, in the middle of the head. The head carries a few feelers or antennae. They are articulated and have various looks depending on the individual species. Some are crested, other club-shaped or brush-shaped. Cockroaches and crickets have elegant, whip-shaped antennae. The mouth is surrounded by several pairs of mouthparts which are actually a kind of remade limbs. They can also have quite differen…