Fig. 6 



7 

 8 



PLATE VII. 

 [Proc. Wash. Acad. Sci., Vol. IV, PI. V.] 



Machilis arctica, sp. nov. (X8). 



" " " " antenna (X 30). 



" " " left maxillary palpus (X 30). 



" " " right labial palpus (X 30). 

 11 " " " left mid leg (X 30). 



[no] 



(108) 



