TWO NEW LICE. 



269 



Larva, Stage II. — Posterolateral angles of the head more 

 pronounced. Minute pleurites developed on the abdomen. 



Text-figure 15. 



Polyplax spinulosa. Lavva, Stage I. X 112. 

 JSP. Epicranium, 



Chfetotaxy of the abdomen : — Two minute hairs on the pleurites 

 of the first seven segments. On segments 8 and 9 the pleurites 

 bear two long bristles each. On terga and sterna of all segments 

 two longish hairs on the middle area. 



Stage II. — -Measurements {millimetre scale). 



Proc. Zool. Soc— 1915, No. XIX. 



19 



