THE PHORIDAE OF FORMOSA. 
559 
one third narrower then the third, but of about equal length ; fifth 
much less heavily chitinized, as long as broad at the base, with a 
large crescentic slit extending from each anterior angle and crossing 
the middle of the segment at the median line ; genitalia small, pale in 
color. Legs quite short, but not thickened ; the four posterior tibiæ 
each with a single apical spur. 
Described from five specimens taken on carrion at Takao, April 19,1907. 
This is a typical member of the genus, probably most closely 
related to the East Indian P. lucifera Dahl. The genus must be very 
extensive, however, and from our present limited knowledge based on 
the few species known from widely separated regions, it is impossible 
readily to define their relationships. 
