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BODY LICE & CLAW HEAD PUBIC LICE BODY LICE & CLAW HEAD PUBIC LICE
LICE
LICE
EGGS ON EGGS ON
HAIR HAIR

Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
BODY LICE BIRD LICE BODY LICE BIRD LICE

Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
1.Antenna- small 4 segmented 6.Thorax LICE 1.Antenna- small 4 segmented 6.Thorax LICE
2.Eyes 7.Petiole- none 3 2.Eyes 7.Petiole- none 3
3.Head 8.Abdomen- tear drop shape 8 3.Head 8.Abdomen- tear drop shape 8
4.Legs- 6 9.Color- reddish to brownish 4.Legs- 6 9.Color- reddish to brownish
5.Wings- none 10.Other- crab-like in appearance 5.Wings- none 10.Other- crab-like in appearance
Life Cycle Life Cycle
For most lice, about 5-12 eggs are produced each day until 100-200 For most lice, about 5-12 eggs are produced each day until 100-200
are laid, and they hatch in around a week to 10 days. They hatch into are laid, and they hatch in around a week to 10 days. They hatch into
nymphs which go through three instars over the next 1-4 weeks, all look- nymphs which go through three instars over the next 1-4 weeks, all look-
ing for their blood meal. Adults only live for 3-4 weeks. Pubic lice are ing for their blood meal. Adults only live for 3-4 weeks. Pubic lice are
slower to develop. slower to develop.
Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
BIRD & ANIMAL LICE Actual size 3/32” BIRD & ANIMAL LICE Actual size 3/32”

The bird louse is fairly small, about 3/32nd of an inch long. It chews on the barbules of bird feathers. The bird louse is fairly small, about 3/32nd of an inch long. It chews on the barbules of bird feathers.
Eggs are laid on the underside of wings, but bird lice apparently do little harm to the birds that carry Eggs are laid on the underside of wings, but bird lice apparently do little harm to the birds that carry
them. The Chicken Head Louse and the Large Turkey Louse can cause problems for poultry, however. them. The Chicken Head Louse and the Large Turkey Louse can cause problems for poultry, however.
Animal lice are a “sucking” louse, and just about any lice found on animals can also host upon humans. Animal lice are a “sucking” louse, and just about any lice found on animals can also host upon humans.
They are a true parasite, and can cause harm to their host by transmitting diseases. Animal lice are They are a true parasite, and can cause harm to their host by transmitting diseases. Animal lice are
generally a little larger, about 1/16 to 3/16ths of an inch in length. generally a little larger, about 1/16 to 3/16ths of an inch in length.
HEAD LICE HEAD LICE
Human lice are not as common as in the past, but outbreaks occur especially among elementary school Human lice are not as common as in the past, but outbreaks occur especially among elementary school
children. It is a sucking louse, and as the name implies is only found on people. The bite causes ir- children. It is a sucking louse, and as the name implies is only found on people. The bite causes ir-
ritation, and it has spread Typhus in the past. The adults are small, 1/16 to 3/16 inch in body size. The ritation, and it has spread Typhus in the past. The adults are small, 1/16 to 3/16 inch in body size. The
eggs are attached to hair, and are referred to as “nits”. eggs are attached to hair, and are referred to as “nits”.

PUBIC LICE (“crabs”) PUBIC LICE (“crabs”)
These lice are small, only about 1/16th inch, and with a body shaped like a crab, with tiny claws. It usu- These lice are small, only about 1/16th inch, and with a body shaped like a crab, with tiny claws. It usu-
ally lives in the pubic region among the hairs, and is frequently transmitted by sexual contact. Infesta- ally lives in the pubic region among the hairs, and is frequently transmitted by sexual contact. Infesta-
tion brings localized itching and irritation, but pubic lice do not transmit diseases. tion brings localized itching and irritation, but pubic lice do not transmit diseases.

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