SOUTH AMERICAN GRASSHOPPERS— REHN. 



391 



length, pattern of the pagina distinct, sharplj^ cut; caudal femora with 

 nine spines on the lateral margins; shorter tibial spurs about two-thirds 

 the length of the longer, evenly curved. 



General color dull cinnamon, washed irregularly with seal brown. 

 Head without postocular bar; antennal fossa of both sexes and the 

 infra-ocular sulcus marked with blackish; eyes ferruginous, Prono- 

 tum with a very faint median bar in the female margined laterad hy 

 faint blotches of darker color; lateral carinte faintly marked with 

 lighter; lateral lobes unicolorous in the male, marked obliquely with 

 a blackish bar in the female, the bar extending from the dorso- caudal 

 to the ventro-cephalic angles. Tegmina obscurel}' sprinkled with 

 small dark spots, the veins distinctly marked with darker in the female. 

 Caudal femora light with the usual triangular spot on the dorsal sur- 

 face distinct in the male, weak in the female, the lateral face in the 

 female with a longitudinal dark line following the center of the pattern 

 of the pagina, ventral surface pale, unicolorous; caudal tibise dull yel- 

 lowish, blackish proximad with a pale pregenicular annulus, spines 

 blackish for about two-thirds the length. 



Measurements. 



Length of body , 



Length of pronotum 



Length of tegmen 



Length of caudal femur 



Male. 



mm. 



15.0 



3.6 



14.1 



10.0 



Female. 



mm. 

 22.0 

 4.2 

 17.5 

 12.0 



A paratypic series of one male and two females have been studied, 

 in addition to the types, taken in June and July. These are very 

 similar to the male type in coloration, except that the male has the 

 dorsum of the head and pronotum dark and the females have the dor- 

 sum of the metazona dark, a tendency toward which is noticed in the 

 male type. The lined veins of the tegmina are distinct only in the 

 female type. The color of the caudal tibiie is also subject to con- 

 siderable variation, being livid in some specimens. 



