JAMES A. G. REHN 
339 
abdomen with a broad, proximal, transverse bar of shining blackish brown, 
this breaking up before reaching the lateral abdominal margins. Venter of 
the abdomen with the segments narrowlj'^ edged laterad and distad with the 
dorsal color, the edging irregular in strength and continuity; subgenital plate 
with ill-defined blotches of the same; cerci of the dorsal color, darkening distad. 
Coxae of the ventral color proximad, naples yellow distad; femora naples 
yellow, this passing distad into ochraceous-orange; tibiae similar to the distal 
portion of the femora, excepting the caudal pair, which are hazel ; tarsi naples 
yellow, excepting the ultimate and penultimate articles which are dresden 
brown. 
Measurements (in millimeters) 
9 
Petropolis, Brazil 
Length 
of body 
Length of 
pronotum 
Greatest 
(caudal) 
width of 
pronotum 
Length of 
tegmen 
Greatest 
width of 
tegmen 
Type 
1.9 
2.2 
4.6 
1.9 
Paratype 
. . 7.3 
2 
2.3 
4.8 
1.9 
In addition to the t}^pe we have before us a paratypic female 
bearing the same data as the type. It shows no noteworthy 
differences excepting some minor color differences. These are 
the presence of fuscous disto-mesad on the cephalic femora and 
to a lesser degree proximad on the cephalic tibiae, the obsolete 
character of the paler palpal markings and the reduction of the 
paler ventral abdominal marginings. These show that the 
specimen is in a slightly more intensive condition of coloration 
than the type. 
Chorisoneura bisignata new species (PI. XXVII, figs. 3, 4, 5 and 6.) 
Apparently allied to C. discoidalis Burmeister, but differing 
in the entirely black front and vertex of head, in the pale humeral 
line on the tegmina and in the smaller size. 
Type. — ; Petropolis, State of Rio de Janeiro, Brazil. April 
12 to 14, 1913. (Malcolm Burr.) [Acad. Nat. Sci. Phila., Type 
no. 5261.] 
Size medium (for the genus): form depressed, elliptical: surface shining. 
Head distinctly projecting cephalad of the pronotum, visible for almost its 
entire width: occipital outline with the eyes, when seen from the dorsum, 
moderately arcuate; interspace between the ej'es very broad, subequal to that 
between the antennal scrobes: eyes narrow, stronglj' elongate and reniform in 
basal outline: ocelli minute, elongate elliptical; face with the antennal depres- 
sions strongly defined mesad by strongly arcuate rims: palpi with the third 
joint moderately slender, slightly longer than the fourth joint; fourth joint 
nearly subequal to the fifth joint, faintly and regularly enlarging distad; fifth 
joint of the usual tyi>e, tapering in the distal three-fifths: antennae at least as 
TR.\XS. AM. EXT. SOC., XLIII. 
