112 
BRAZILIAN ORTHOPTERA 
proximad in the direction of the base of the opposite cercus, pilose: sul> 
genital plate short, broad, disto-mesad U-emarginate; styles but little shorter 
than the subgenital plate, elongate lanceolate, depressed, apex blunted, pilose. 
Cephalic femora subequal to the dorsal length of the head and pronotum 
together, armed on the ventro-cephalic margin with two spines on the distal 
half; cephalic genicular lobe spined, caudal one rounded; cephalic tibiae with 
the foramina compressed conchate. Median femora subequal to the cephahc 
femora in length, ventro-cephalic margin with three spines in distal half, 
cephalic genicular lobe rounded, caudal genicular lobe spined; median tibiae 
moderately compressed, weakly inflated proximad, dorsal margins unarmed. 
Caudal femora but slightly longer than the tegmina, moderately inflated 
proximad, ventro-cephalic margin with four to five spines, genicular lobes 
spined. 
Allotype. — 9 ; Porto Velho, Rio Madeira, Brazil. (Stanford 
Brazilian Expedition; Mann and Baker.) [Acad. Nat. Sci. 
Phila.] 
Differing from the description of the male sex in the following features. 
Size medium. Antennae nearly twice as long as the body. Pronotum less 
elongate, the greatest caudal width of the disk contained one and two-thirds 
times in the greatest length of the disk. Tegmina falling short of the apices 
of the caudal femora by about the depth of the lateral lobes of the pronotum, 
lanceolate, rather regularly narrowing from the proximal third, the greatest 
^ddth contained four times in the greatest length of the same. Supra-anal 
plate of the pattern found in the male; cerci short, weakly curved, robust 
proximad, tapering distad: ovipositor two-thirds as long as the caudal femora, 
arcuate in distal three-fifths, proximal two-fifths straight and subequal in 
depth; ventral margin thence regularly arcuate, very faintly serrulate; dorsal 
margin in distal three-fifths arcuate emarginate, this section crenulate, par- 
ticularly proximad: subgenital plate transverse, the free margin arcuate, 
rectangulate emarginate mesad. Caudal femora slightly shorter than the 
tegmina. 
General color (specimens dried from liquid preservative) buckthorn brown 
to dresden brown, the dorsal surface of the abdominal segments mummy 
brown, the distal margin of these segments on the dorsum and for some distance 
ventro-laterad narrowly clove brovra. Venter and face cream-buff to chamois, 
the lateral facial carinae, the lateral carinae of the pronotum, their cephalic 
continuation on the head and the sutural margin of the tegmina of both sexes, 
as well as the bordering of the stridulating field of the tegmina of the male, 
lineate with naples yellow, more pronounced in the male than in the female. 
Face with the pale markings more or less distinctly outlined with mummy 
brown, labrum with the distal half dull bluish; eyes russet; antennae with a 
few widely spaced, cream-colored annuli, which are thrown into contrast by 
the darkening of the adjacent section. Pronotum with the dorsal section of 
the lateral lobes marked with clove brown, this varying from a narrow line to 
a broader cloud and throwing the adjoining pale carinal line into contrast; 
cephalic margin weakly, and caudal margin strongly, beaded with clove 
