Fydrometride. 149 
joint the longest, and curved, the other three about of equal 
length; rostrum reaching to about the middle of the meso- 
sternum; pronotum five-sided in the developed form, much 
widened behind; base largely produced over the base of 
the elytra, subtrapezoidal in the undeveloped; elytra in the 
developed form without divisions, entirely membranous, in 
the undeveloped entirely absent; connexivum reflexed, the 
sixth segment produced into a sharp point; in the ¢ two 
genital segments are visible above, in the 9 only one; on 
the first abdominal segment in the developed form are two 
sharp longitudinal ridges, springing from a semi-circular 
basal elevation, which looks like a scutellum, but is really 
abdominal; legs inserted at the sides of the sterna, so that 
the cox are very remote; intermediate femora very long, 
narrow ; posterior femora incrassated, bearing two spines 
and a row of denticulations in the ¢; tarsi three-jointed ; 
claws subapical; metasternum with a curved carina, ter- 
minating in a transverse impression above the posterior 
cox, and from its posterior side project several curved 
bristly hairs ; this resembles the orifice of the odoriferous 
sac in the land bugs. 
V. currens, /'ab.—Blackish brown. Head with a 
smooth vertical line; pronotum largely and_ shallowly 
punctured, front margin and dorsal line more or less 
testaceous, near each anterior angle is a round silvery 
pubescent spot; sides slightly sinuate; base subtruncate 
in the undeveloped form, produced into a long angular 
process in the developed, its apex widely rounded; elytra. 
when present, black, with two busal spots, an oval spot on 
the middle of the disc, and a small round apical spot white ; 
abdcmen testaceous, with the angles of the segments of the 
connexivum, and a spot on each side of the segments 
beneath, black ; in the undeveloped form there is a broad 
black band on each side of the abdomen; genital segments 
black ; legs black, femora slightly paler towards the base, 
posterior pair incrassated, especially in the male, in which 
