LICE. 29 



at tip. Metathorax with four lateral bristles. Four 

 anterior abdominal segments with a single lateral 

 bristle, fifth and sixth with two lateral bristles, seventh 

 with four. Anal segments bilobate, with four long and 

 two short bristles. Each segment has four central 

 and three pairs of lateral bristles, except the last, 

 which has two large central ones. Legs thick, a 

 single bristle on the tip of each tibia. 



The male is narrower than the female, bright 

 yellowish brown, borders of the segments very dark 

 brown, Five pairs of fine bristles on the head and 

 one large one on each side of the posterior angle. 

 Each abdominal segment with a pair on each side. 

 Abdomen dark in centre. Legs not so thick as in 

 the female ; three hairs on femora of second and 

 third pairs. Length in $, 2'6 to 2*7 mm. ; in J, 

 2*8 to 2'9 mm. 



This species does not seem to leave the head and 

 neck. It is especially abundant in chicks in the 

 above-named positions. Specimens were first sent 

 me by Mr. Till, of Eynsford, who finds they are 

 most prejudicial to the health of the birds. They are 

 found with their heads buried in amongst the feathers 

 and their bodies in the air, just like a Tick. A full 

 account of this species will be found in the Journal 

 of the S.E. Agric. College, No. 5. 



Life-history of Chicken-Lice. 



Apparently Chicken-Lice breed all the year round, 

 but more abundantly in the spring of the year than 



