250 BRAZILIAN ORTHOPTERA 



arcuate, faintly flattened mesad, apex acute: marginal field of medium width 

 and extending to two-fifths the length from the base of the tegmen; anal 

 field acute pyriform, reaching on the sutural margin almost the same distance 

 as the mediastine vein does on the costal margin: venation distinct, moderately 

 elevated, strongly accentuated by all the principal, cross and accessory veins 

 being hyaline in contrast with the general coloration; costal veins nine to 

 twelve in number, a number bifurcate near their bases; median vein biramose 

 to triramose; ulnar vein bifurcate; axillary veins five in number. Wings 

 relatively narrow: appendicular field relatively small, largely intercalated, the 

 proximal angle of the same acute, distal margin of field strongly rounded, 

 slightly flattened mesad: costal margin of anterior field well arcuate distad, 

 rather sharply rounding to the proximo-costal angle of the appendicular 

 field: costal veins twelve in number, several bifurcate distad, all non-clavate; 

 areas at the bases of the costal veins subquadrate, slightly oblique in trend; 

 discoidal vein straight, entire; median and ulnar veins simple; medio-discoidal 

 area with generally quadrate enclosures; axillary vein biramose. Supra-anal 

 plate produced trigonal, the immediate apex narrowly emarginate: cerci 

 moderately depressed, tapering, hirsute: subgenital plate compressed, sub- 

 rostrate, a decided V-cleft extending proximad for a short distance along the 

 ventral surface: ootheca carried with the carina dorsad, the carina of the 

 same supplied with a numV)er of regularly placed, minute, conical points. 

 Cephalic femora with an elongate ventro-cephalic spine and no dorso-genicular 

 or ventro-caudal spines; median and caudal femora with large ventro-cephalic, 

 ventro-caudal and dorso-genicular spines; cephalic femora with the ventro- 

 cephalic margin with pili.orm spines; median and caudal femora with bristles 

 on the same margin, but no spines; caudal tarsi elongate, metatarsus longer 

 than the other joints united, arolia large. 



General color chamois, beneath light to warm buff; lateral areas of pronotum, 

 marginal and costal section of scapular fields pellucid; intervenular areas of 

 tegmina washed with old gold, venation pellucid. Wings washed with pale 

 clay color, stronger along the costal margin and at the base of the appendicular 

 field than elsewhere. Head with an interocular bar of pale ochraceous-salmon, 

 this finely outlined dorsad with fuscous, and single points of the same color 

 placed latero-ventrad of the pale bar; antennae briefly lined with fuscous 

 ventro-proximad ; eyes blackish. 



Measurements of type (in millimeters): length of body, 6.4; length of 

 pronotum, 1.9; greatest width of pronotum, 2.5; length of tegmen, 6.2; greatest 

 width of tegmen, 2. 



We have before us a paratypic series of nine females as follows : 

 Independencia, Parahyba, Brazil. (Mann and Heath.) 



[A. N. S. P. and Stanford University.] Five females. 



Bonito, Pernambuco, Brazil. January, 1883. (A. Koebele.) 



[U. S. N. M. and A. N. S. P.] Four females. 



This series shows some noteworthy variational features in 



structure and coloration. The median vein of the tegmina, 



while retaining the described proportions, occasionally has four 



