68 



PSOROPTES COMMUNIS Fuist.. Viir. OVIS. 

 Plate VIII. 



Fig. 1. Yonng female before moultiug for the last time. 



Fig. 2. Egg drawn from aspecimea which was iusido au adult female. 



Fig. 3. Yoiiug six-footed larva. 



Fig. 4. a, op.'U, and b, closed sucker of Psoropfes from ears of rabbit ; c, the rod which 



connects the membrane on the end with the muscles which close the 



sucker. 

 Fig. 5. Two views of the mandibles. The lateral spurs, a, a, point outward 



(Megnin). 

 Fig. 6. Head and anterior limb enlarged; ventral view : n, mandibles; &, antenuai; 



c, maxilla) ; d, membrane joining the antenna; ; e, e, e, joints of the limb; 



/, the claw ; r/, the ambulacrum or sucker. 

 Fig. 7. Male and female of Psoroptei communis var. eqid (Megnin), 



