PARASITOLOGY. 



37 



hairs are noted on each side of its piercing stylet. 

 Two protuberances are noted just posterior to the 

 attachment of the antennae, forming deep notches. 

 The legs are marked by dark bands at the joint. 

 The terminal end of the last segment is provided 

 with one large and one small claw, and between 

 them is found a disk that is provided with small 



Fig. 7— Hematopinus ^i .- Fhutomicrograph, lx% inch, 



a, Head with piercing stylet. 



b, Antennae— 5 segments. 



c, Deep notch in which the eyes are implanted, 



d, Claws on end of terminal segment. 



e, Abdomen. 



f, Thorax, bearing 3 pair of legs. 



spikelets, thus giving it a great power to hold on. 

 It is about one-fifth of an inch long. 



While this louse is found on all parts of the body, 

 a favorite place is in the folds of skin just back of 

 the ears, where the nits or eggs may be found in 

 abundance. 



