STAPHYLlNIDiE. 
109 
the north and west of England, lives almost (if 
not entirely) in the water, especially in mountain 
streams. 
English descriptions (by the author of this work) 
of all our species will be found in the first volume of 
“ The Entomologist’s Monthly Magazine.” 
The Oxyporinas, containing the single genus 
Oxyporus, are remarkable for the great development 
of the last joint of the labial palpi, which is very 
much dilated and crescent-shaped, giving the palpus 
the appearance of a stalked cup-moss or fungus ; the 
anterior cox® are prominent and conical, and the 
intermediate pair are very widely separated ; the tarsi 
are all five-jointed. 
Oxyporus rtifus (Plate V., Fig. 2) is conspicuous 
for its robust build, bright colours, sharp elongate 
jaws, and the large size of the head in the male ; it is 
found in fungi, eating transverse galleries through the 
“ gills ” on the lower side, and runs with great swift- 
ness. 
The Oxytelim: have the prothoracic spiracles 
difficult to perceive on account of the promi- 
nence of the sides of the thorax ; the antenu® 
(which are more or less elbowed, on account of 
the elongation of the basal joint) inserted under 
the elevated lateral margin of the forehead ; the 
thorax beneath membranous behind the anterior 
cox®, which are elongate, subconic, and prominent, 
the posterior pair being transverse ; the posterior 
trochanters small ; tho ligula membranous, with the 
paragloss® either soldered to it or entirely absent 
[Oxyporus and JBledius) ; the apical joint of the 
maxillary and labial palpi generally subulate; the 
