692 Wisconsin Academy of Sciences, Arts and Letters. 
of the edge not so prominent in lateral view, the tip not in¬ 
dented : penis as in the preceding species. Inferior appendages 
of the same general form as in dilutus, but the posterior lobe is 
larger, ending in a hooked tip, and the portion below is not 
thickened and dark brown. An additional pair of appendages 
is here present. They are long, tapering, nearly straight in lat¬ 
eral view; in ventral view they are strongly curved, or sickle^ 
shaped, their points directed toward each other. These ap¬ 
pendages may be thrown up so as to lie alongside the inferior ( ?) 
appendages, in which position they are much less conspicuous. 
Larva. —Length, 6-7 mm. Width, 1.5 mm. Head small. 
Body in life green. Head very dark, the eyes in light spaces, 
which are situated at the anterior extremities of a horse-shoe- 
shaped light area, the middle of the curve of this area lying 
around the apex of the clypeus. On either side of the apex, in 
this area, are two black spots, the smaller one external. The 
clypeus shows a lateral border of white almost to the anterior 
edge. Mandibles and labrum black. Beneath may be seen a 
black semi-lunar gula, with white on either side. The pro¬ 
thorax is dark brown, darker on the posterior border, a small 
irregular light patch on either side above the legs. On the 
mesothorax is a squarish patch of light brown, bisected by a fine 
median line, posterior to which is a pair; of small elongated 
spots; outside of these on the posterior half of the segment, a 
pair of curved black bars, with the concavities outward. Meta¬ 
thorax unchitinized, except a bar for the attachment of legs oif 
either side. Legs light brown. A microscopical examination 
of the various parts shows their form to be almost identical with 
the parts of dilutus. The drawings of the respective clypei 
show some slight difference there. The two species could not 
