39 



f The two inner lonjiitudinal veins of the vving covers ran sepa- 



j rately to the inner border 8. 



I Tlic two inner longitudinal veins of the wing covers unite licfore 



[ reaching the inner border Psinidia. 



^ f Veins of the hind part of the hind wings thickened . Circotettix. 



\ Veins of the hind part of the hind wings not thickened, Trimerotropis. 



Genus Arpiiia. Stal(1873). 



Body compressed ; pronotum granulated ; median carina either 

 notched or entire. Wing covers of one color, but sprinkled with 

 minute black dots ; wings margined externally with black. 



The species may be separated as follows : — 



f Pronotum right angled behind sulphurea. 



I Pronotum acute angled behind xanthoptera. 



Arphia sulphurea. Fabricius. 

 Dusky brown, varying from an ashen to a dark hue. Wing 

 covers paler than the head and thorax, more or less distinctly 

 spotted with brown. Wings deep yellow at the base and on the 

 basal half of the front margin, bounded externally by a dusky 

 brown band beyond the middle, which curves and is prolonged on 

 the hind margin, but does not reach the anal angle ; a sub-mar- 

 ginal ray of the dark, extending two-thirds the distance to the 

 base, separates the yellow of the margin from that of the disk ; 

 apex translucent, dusky. Posterior femora black inside, with two 

 white bands ; posterior tibi.B dusky, with a pale ring near the 

 base ; middle sometimes bluish. Length, a little over an inch. 



Arphia xanthoptera. Burmeister. 



Thorax generally, though not always, darker than in the former 

 species ; sometimes with two yellow dots on the middle of the sides 

 of the pronotum, one above the other, and the front and hind mar- 

 gins dotted with olive ; but these markings nre not uniform. The 

 dark ray of the wings near the front margin, not more than half 

 as long as in the former species, extending but one-third the 

 distance to the base ; this is remarkably uniform. Posterior 

 femora generally witli two oblique dull yellowish bands on the 

 exterior face, and also a paler and more distinct ring near tlie 

 apex^ ^ 



Length, from one to one and one-fourth inches. 



Genus Choutophaga. Saussure (1884). 

 Body compressed, somewhat slim, punctate or fine wrinkled, 

 green, sub-glabrous, slightly pubescent. Legs remote, with scat- 



