JAMES A. G. REHN 
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broader, the lateral lobes of the pronotum more decidedly nar- 
rowed ventrad, the tegmina proportionately broader and more 
coriaceous and opaque, in the marginal field of the tegmina 
proportionately narroAver, the ramus of the median vein of the 
tegmina forking faintly proximad of the middle, in the ulnar vein 
of the tegmina being more bent arcuate and closer to the median 
vein, and in the median and caudal limbs being longer. From the 
related C. curvinerve (Brunner), from Fonteboa, Brazil, the new 
species apparently differs in the more numerous femoral spines, 
the longer and narrower pronotum and the longer caudal femora. 
Type. — -cf; Para, State of Pard, Brazil. (C. F. Baker.) 
[Acad. Nat. Sci. Phila., Type no. 5309.] 
Size medium: form moderately compressed (less than in allies), robust 
(for the genus): surface smooth but unpolished; tegmina \\nth a slight polish. 
Head relatively broad, its greatest width subequal to the depth from occiput 
to ventral angle of genae: occiput weakly arcuate declivent to the fastigium, 
this narrow, acuminate vdth the apex narrowly rounded, sulcate, moderately 
declivent, widely separated from the fastigium of the face, the latter slightly 
acute-angulate: face slightly bullate, weakly impressed carino-rugose ventrad 
of the eyes, genae not prominent: eyes directed cephalad, not projecting 
laterad, their basal outline broadly subreniform-ovate, the cephalic trend of the 
convexity of the eye quite pronounced: antennae incomplete. Pronotum 
relatively broad, the dorsmn distinctly deplanate: greatest dorsal (caudal) 
width of disk contained one and two-fifths times in the greatest length of the 
same; cephalic margin of disk distinctly but not strongly arcuato-emarginate: 
caudal margin of disk broadly and quite strongly arcuate; lateral angles of 
disk weakly diverging caudad, rounded, distinct except cephalad, where they 
are obsolescent; metazona with a distinct medio-longitudinal sulcus: lateral 
lobes of pronotum appreciably deeper than long, moderately narrowing ven- 
trad; cephalic margin oblique subtrmicate, ventro-cephalic angle rounded ob- 
tuse, ventral margin briefly oblique truncate, passing through the broadly 
rounded ventro-caudal angle into the slightly oblique, arcuato-truncate caudal 
margin, humeral sinus distinct but shallow, rotundato-rectangulate. Teg- 
mina relatively broad, subrectangulate-elliptical, surpassing the apices of the 
caudal femora by the dorsal length of the head and pronotum combined, 
greatest width (median) contained two and one-half times in the greatest 
length, width at distal fourth contained slightly more than three times in the 
length: costal margin straight, except proximad, where it is obliquely truncate 
to the base, the two sections broadly rounding one into another, and distad 
where it is moderately arcuate to the rounded rectangulate apex, which is 
slightly costal in position; sutural margin arcuate except distad, where it is 
slightly flattened and arcuate into the obliquely arcuato-truncate apical 
margin: marginal field very broad proximad, regularly narrowing distad: 
TRANS. AM. ENT. SOC., XLIII. 
