Search results
Results from the WOW.Com Content Network
Head louse egg (nit) attached to hair shaft of host. Like most insects, head lice are oviparous. Females lay about three or four eggs per day. Louse eggs (also known as nits), are attached near the base of a host hair shaft. [11] [12] Eggs are usually laid on the base of the hair, 3–5 mm off the scalp surface.
[3] The louse's life cycle consists of three instars and for completion of the cycle, from egg to egg, is between 27 and 29 days. [4] The adult louse has a short broad head, broad sensorial on segments 4 and 5 of its antennae. It has a hexagonal shaped sternal plate on the thorax and prominent abdominal spiracles. Its hind and middle legs are ...
Louse (pl.: lice) is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research. [1] [2] [3]
Louse eggs hatch 6–9 days after oviposition. Therefore, a common recommendation is to repeat treatment with a pediculicide at least once after 10 days, when all lice have hatched. [3] Between the two treatments (Days 2–9) the person will still be infested with lice that hatch from eggs not killed by the anti-louse product.
The life cycle of the body louse consists of three stages: egg, nymph, and adult. Eggs (also called nits, see head louse nits) are attached to the clothes or hairs by the female louse, using a secretion of the accessory glands that holds the egg in place until it hatches, while the nits (empty egg shells) may remain for months on the clothing ...
Psocodea is a taxonomic group of insects comprising the bark lice, book lice and parasitic lice. [2] It was formerly considered a superorder, but is now generally considered by entomologists as an order.
Menacanthus stramineus – An ectoparasite of domesticated chickens and turkeys and the most common louse found on poultry worldwide. Eggs hatch in 4–5 days with a 14-day period required for maturatation from nymph to adult. Adult females can deposit approximately 1.5 eggs per day for 12.5 days. [5]
Hippoboscidae, the louse flies or keds, are obligate parasites of mammals and birds. In this family , the winged species can fly at least reasonably well, though others with vestigial or no wings are flightless and highly apomorphic .