JAMES A. G. REHN 
137 
Size medium : form subdepressed, as usual in the genus: surface of the head, 
pronotum, venter, abdomen and limbs largely fine pilose. Head with its 
width shghtly greater than the cephalic width of the pronotum: occiput 
regularly declivent to the rostrum; fastigium broad, very broadly, faintly and 
very shallowly excavate between the lateral ocelli: rostrum obtuse-angulate 
in lateral outline, its interantennal width about one and one-half times as 
great as that of the proximal antennal joint: median ocellus small, situated 
at the angle of the rostrum; lateral ocelli relatively large, subovoid, touching 
the dorsal margin of the antennal scrobes, removed from the eyes a distance 
equal to the short diameter of the ocellus: eyes unsymmetrical ovato-pyriform 
in basal outhne, when seen from the dorsum moderately prominent, with an 
extremely faint cephalic trend: antennae about twice as long as the body; 
proximal joint broad, depressed, pilose distad and along the internal face: 
palpi with the third joint distinctly longer than the fourth joint and subequal in 
length to the fifth joint; third joint monili-fusiform; fourth joint conical; fifth 
joint compressed, subelliptical in outline, the distal margin obliquely subtrun- 
cate, internal face deeply and broadly excavate. Pronotum slightly transverse, 
with the greatest median length contained one and one-third times in the great- 
est caudal width of the disk : cephahc margin of the disk weakly and shallowly 
concave, caudal margin weaklj' bisinuate laterad, mesad broadly arcuate; 
disk gently expanding caudad, all dorsal pronotal margins rather broadly 
cingulate; median fine of the pronotum with cephalic, slightly premedian and 
minute postmedian impressions, the disk vdth cephalic, median and paired 
lateral impressions: lateral lobes moderately longitudinal; ventral margin of 
the lobes broadly arcuate, the ventro-cephalic angle rather narrowly rounded, 
the ventro-caudal very broadly rounded, cingulation very narrow on the ventral 
margin, exceptionally broad ventro-caudad. Tegmina of the type generally 
found in males of this group, the greatest width at five-eighths the length from 
the base and contained faintly iiiore than three times in the length of the 
tegmen, the closed tegmina with the lateral outlines straight and faintly widen- 
ing distad to the point of greatest width: marginal field of the type usual in 
this group; mediastine vein with fifteen to sixteen rami, all oblique and sig- 
moid, free proximal veins of the marginal field three to four in number; 
humeral and discoidal veins fusing at distal third, proximad of which they en- 
close a very elongate lanceolate area, distad the}' roughly parallel the medias- 
tine vein, but are first more angular and then straighter; median vein practi- 
cally straight to the speculum, where it is very weakly rounded obtuse-angulate, 
thence straight, weakly oblique to the apex; stridulating vein with its longi- 
tudinal section straight, acute-angulate where it bends transversely, thence 
arcuate and finally straight, the angle with an incomplete longitudinal spur: 
oblique veins three in number, the first short, arcuate, joining the stridulating 
vein close to the angle; the second and third oblique, the second straight, the 
third weakly sinuate, both fusing in a supplementary node, which is connected 
with the diagonal vein by a strongly arcuate vein and with the striilulating 
vein by a shorter, arcuate vein: anal node distinct; anal vein strong, oblique, 
area between this and the stridulating vein occupied by a sub-longitudinal 
TRANS. AM. ENT. SOC., XLIII. 
