PHILOUGRIA VIVIDA. 459 
second joint of the outer antenne is produced into an 
angle at its inner extremity, and the flagellum consists of 
five slender articuli, These organs are destitute of the 
spines which distinguish the other species. The terminal 
segment of the tail is triangular, truncate at the ex- 
tremity, very nearly straight and deeply furrowed above, 
but not emarginate. The caudal appendages are trigono- 
subulate. 
Taken not uncommonly under stones and moss on hills 
at Portlaw, in the county of Waterford, by Dr. Kinahan, 
in great abundance in March, 1858, even in the midst of 
snow. It runs with great agility, and does not bury 
itself deep in the earth like PA. riparia. 
