Brit. Mus. (Nat. Hist.) 

 Economic Ser. No. 6. 



Plate I. 



The Japanese " Harvest Bug," called Tsutsugarnushi or Akamushi 



(Microtrombidium akamushi, Brumpt), carrier of the Kedani or 



River Fever, a — one of the dorsal hairs. Greatly enlarged. 



[To face p. 24. i 



