JAMES A. G. REHN 
145 
Size small (for the genus) : form moderately elongate, subdepressed: surface 
finely adpressed pilose except the dorsum of the pronotum, the lateral lobes 
of the pronotum and the tibiae being quite thickly covered. Head moderately 
broad: occiput but moderately declivent cephalad, the fastigium and interocu- 
lar region strongly and broadly excavate, the rostrum and antennal scrobes 
sharply cut off from the fastigium by a transverse shoulder, which forms, when 
seen from the dorsum, a very broad, U-shaped figure with diverging arms, 
on the cephalic face of this shoulder are situated the ocelli: median ocellus of 
medium size, ovate, the ventral portion fossetted, well separated from the 
lateral ocelli; lateral ocelli elongate elliptical, concave in form,®® not touching 
the eyes, distinctly longer than the median one: rostrum very narrow, its 
least width, which is parallel to the axis of the antennal insertion, being not 
more than two-thirds the width of the proximal antennal joint, the lateral 
outline of the rostrum arcuate from the median ocellar fossette ventrad: palpi 
elongate; the third and fourth joints slender, simple, subequal in length; the 
fifth joint broadly securiform, the extensor margin concave, the flexor margin 
strongly convex, the distal margin truncate, the base very slender, the distal 
section appreciably expanded laterad: eyes slightly prominent, in basal out- 
line short and broad miter-shaped, the greatest width contained about one and 
one-half times in the depth : antennae reaching at least as far as the tips of the 
closed wings, proximal joint broad, subdepressed. Pronotum transverse, the 
median length contained about one and one-half times in the greatest caudal 
width of the disk: cephalic margin of disk truncate; caudal margin quite 
strongly bisinuate, arcuate obtuse-angulate mesad; both margins cingulate, 
the caudal more widely so than the cephalic; lateral borders of the disk ap- 
preciably and regularly diverging caudad; paired lateral impressions of disk 
elliptical, a distinct and moderately decided impression in the middle of the 
disk: lateral lobes of the pronotum weakly longitudinal, the greatest depth 
contained one and one-third times in the length of the lobe; ventral margin 
distinctly and regularly arcuate, the ventro-cephalic angle broadly rounded, 
the caudal angle obtusely rounded, margins finely cingulate cephalad and 
ventrad, very broadly lamellato-cingulate ventro-caudad ; surface of the lobes 
much impressed ventro-caudad. Tegmina elongate, relatively narrow, the 
tips very faintly surpassing the apices of the caudal femora and surpassing the 
apex of the abdomen by nearly the length of the head and pronotum combined, 
when seen from the dorsum the closed dorsal fields narrow regularly from the 
base: costal margin very faintly concave at its middle: lateral field subequal 
in width from the base to its middle, thence narrowing to its apex, which 
very shortly precedes that of entire tegmen: mediastine vein with five rami, 
the lateral field with four free veins; humeral and discoidal veins in the prox- 
imal half following the curve of the mediastine vein, thence the discoidal forms 
the internal border of the lateral field; the humeral vein distad follows the gen- 
eral course of the discoidal vein, somewhat irregular and sending off poorly 
®® These are similar to the shape of the antennal fo.ssae immediately ventrad 
and are probably a develoj)ment to permit of the antennae being directed 
caudad, the large proximal joint having little pla\', without some cutting away 
in this region. 
TR.\NS. ,\.M. ENT. SOC., XUII. 
