are lice nits on the hair shaft
Nits are head lice eggs, they are very small, about the size of a knot in thread, hard to see, and are often confused for dandruff or hair spray droplets. Nits are laid by the adult female at the base of the hair shaft nearest the scalp and are firmly attached to the hair shaft. They are oval and usually yellow to white. Nits take about one week to hatch. Eggs that are likely to hatch are usually located within ¼ inch of the scalp. Head lice hold tightly to hair with hook-like claws at the end of each of their six legs. Head lice nits are cemented firmly to the hair shaft and can be difficult to remove even after the nymphs hatch and empty casings remain. Head lice (pediculus humanus capitis) are small, grayish-brown, wingless insects that are roughly the size of a sesame seed (found on a burger bun) when fully grown. They need to live in warm (31C +) humid conditions and feed off human blood obtained by biting the scalp. The louse life cycle is fairly simple. A louse attaches itself to the base of the hair close to the scalp. It needs a blood meal several times a day and also needs the warmth and humidity provided by the scalp. At night the female louse lays several eggs that are cemented to the base of a hair shaft. Head lice and their nits are found almost exclusively on the scalp, particularly behind the ears, on top of the head, and near the neckline. They sometimes appear on eyelashes and brows, but this is rare. Head lice grasp the hair shaft with hooklike claws. They don't like light, and they're fast, so you may see or feel the nits only when you closely examine your child's hair. Grab a flashlight, and look or feel for the tiny bumps, which will be cemented firmly to the hair shaft about a quarter-inch from the scalp. What are lice, eggs (nits)? Lice eggs are laid by the female louse. They are about the size of a poppy seed and are difficult to see because their color blends in easily with hair. Lice eggs are laid near the root of the hair and are attached to the hair shaft with a glue-like substance that can't be washed or blown away. Nits are the empty eggshells left behind when lice hatch from eggs. Dandruff, sand and flakes of hairspray are commonly mistaken for lice eggs or nits. Hair grows at about one centimeter a month so a nit 2cm from the scalp was therefore laid about 2 months ago. If you cannot find live lice and the nearest nit to the scalp is 1 cm down the hair shaft, then the infection has been cleared for one month, but you will still find the empty egg cases. Head lice have three forms: egg (nit), nymph, and adult. - Nits: They're oval-shaped and about the size of a knot in thread. They're difficult to see, but you can feel them if you run a fingernail down the hair shaft from the scalp. Nits can be light gray, tan, yellowish, or white. Head lice are not spread through bed linen, clothing or head gear, as they do not leave. the scalp unless they are dead or dying. Eggs (‘nits’) do not fall off until weeks after they have hatched as. the egg shells are glued tightly to the hair shaft. Head lice are tiny insect parasites that live on the human head, feeding on the scalp several times a day. Head lice reproduce by. laying their eggs (nits) on the hair shaft close to the scalp. They are. not dangerous, don’t carry diseases and are not a sign of poor hygiene.
Yes,  lice nits are on the hair shaft.