1912] North American Scoline 301 
In the female the antennz are more condensed, being 
thicker and shorter. The scape is large, stout, elongate- 
ovate, with its greatest diameter near its outer end. The second 
segment is similar to that of the male but articulates somewhat 
obliquely with the scape which tends to turn the outer part of 
the antenna backward. The ten segments of the filament 
with the exception of the last are no longer than their diameter 
and articulate with each other quite obliquely. Their surface 
in general is dull though the first segment or two may be some- 
what glistening. The outline of the filament as a whole resem- 
bles that of the male. 
THORAX. The pronotum aside from the portion forming 
the upper side of the neck extends to the tegule, below: which 
it projects a little farther backward. From this point its edge 
then runs forward and downward, forming a curve to the base 
of the fore coxe. Between the tegule its margin is deeply 
excavated to accomodate the front of the mesonotum. The 
front margin of the prosternum on the neck is considerably 
posterior to that of the pronotum making the articulation with 
the head quite oblique. A Y-shaped groove a short distance 
behind its anterior margin separates what may be considered 
the neck portion of this plate from a swollen lateral lobe on 
each side, at the hind end of which the fore coxa articulates. 
The surface of the pronotum is more or less coarsely punc- 
tured and provided with hairs except along a strip where its 
neck and vertical portions meet. The sternum is everywhere 
similarly punctured but the hairs along the Y-shaped groove 
are much smaller and decumbent. 
The mesonotum is a broad convex plate, very near a regular 
hexagon in outline, lying between the wings and extends 
forward to the prothorax, and to the tegule at the sides. From 
the middle of the anterior edge a groove extends backward 
varying in length and distinctness. From a point just inside 
of the place where the edge of the scutellum joins the mesono- 
tum a pair of grooves pass forward from its posterior margin 
parallel to each other. These grooves varying in length, 
depth and width are probably the parapsidal grooves. The 
mesonotum is coarsely but somewhat sparsely punctured 
except near its center which is smooth. Just behind the meso- 
notum lies the scutellum. It is more or less deeply punctured 
and hairy, and is a transverse plate with its central portion 
