246 BRAZILIAN ORTHOPTERA 



The other exact records of the occurrence of this circumtropical 

 species in Brazil were from Rio de Janeiro and Para. 



OXYHALOINAE 

 Chorisoneura polita new species (Plate XIV, figs. 18, 18 and 20.) 



A very distinct species which in general smoothness of surface 

 somewhat resembles Anaplecta fulgida. The character of the 

 femora, however, shows it has no relationship to that genus and 

 clearly belongs to the present group. 



Type. — 9 ; Independencia, State of Parahyba, Brazil. (Stan- 

 ford Expedition; Mann and Heath.) [Acad. Nat. Sci. Phila., 

 Type no. 5250.] 



Size medium (for the genus) : form moderately depressed ; surface glabrous. 

 Head projecting cephalad of the cephalic margin of the pronotum; occiput 

 truncato-arcuate when seen from the dorsum, broad, the width about twice the 

 depth of one of the eyes: eyes elongate reniform, narrowed at their extremities: 

 antennae distinct, surpassing the body in length, rather sparsely but distinctly 

 pilose: palpi with the fourth joint simple, slightly tapering; fifth joint slightly 

 more than half again as long as the fourth joint, slender proximad, increasing 

 in thickness to the distal third, thence narrowing to the blunt apex. Pronotum 

 transverse subelliptical, the greatest width about twice the greatest length: 

 cephalic margin gently arcuate, rounding by a faintly marked angle into the 

 moderately arcuate divergent lateral margins; caudal margin arcuate laterad, 

 truncate mesad, caudo-lateral angles broadly rounded : lateral sections of the 

 pronotum deflexed. Tegmina surpassing the apex of the abdomen by more 

 than the length of the pronotum, in form elongate lanceolate, the greatest 

 width contained two and two-thirds times in the greatest length : costal margin 

 regularly and gently arcuate; sutural margin straight except proximad and 

 distad where it is distinctly arcuate; apex roundly subacute-angulate: marginal 

 field narrow, reaching almost to the middle of the tegmina, deplanate; anal 

 field acute pyriform: discoidal and median veins parallel for the greater portion 

 of their length, costal rami of the discoidal vein about twelve in number, the 

 same vein with two rami toward the sutural margin distad; median vein with 

 three rami toward the sutural margin; ulnar vein simple; anal vein strongly 

 arcuate proximad, faintly arcuate mesad and distad, reaching the sutural mar- 

 gin at proximal two-fifths; axillary veins about four in number. Wings with 

 the costal margin considerably arcuate distad; appendicular field of medium 

 size, its greatest length equal to one-third of the length of the remainder of 

 the wing, greatest width of field distinctly exceeding its greatest length, the 

 margin nearly semicircular, having a very slight emargination at the apex of the 

 folding vein, the basal outline of the field nearly rectangulate: mediastine vein 

 reaching to the distal two-thirds of the margin ; discoidal vein straight, reaching 

 to costal angle of base of the appendicular field, bearing nine costal rami which 

 are but faintly thickened; median vein weak, rather indistinct, straight except 

 that distad it curves toward the humeral vein; ulnar vein straight except for a 

 short proximal arcuation, bearing a single ramus which diverges at a right 



