ACRIDID^E. 



619 



interrupted by the slight transverse impressed lines ; a few indeterminate 

 ferruginous streaks in the fore part ; fore border hardly rounded ; sides 

 slightly rounded ; hind border more rounded. Prosternal spine oblique, 

 stout, slightly curved, extending to the fore border of the mesosternum. 

 Hind femora as long as the abdomen, with a black serrated stripe and a 

 black apical spot on the inner side; hind tilme much shorter than the hind 

 femora, their spines with black tips. Fore wings cinereous, a little shorter 

 than the body, with a brown discoidal antemedial streak and with several 

 brown speckles. Hind wings pellucid; veins yellowish white. Length of 

 the body 14 lines; expansion of the fore wings 27 lines. 



XX 



o. 

 oo. 



00 



Genus ACRIDIUM, C. D. S. 576. 

 America. 



Tip of the vertex not transversely subelliptical, uor tapering. 



Prothorax not widening much hindward. 



Hind femora black. - - melanocerum. 



Hind femora not black. 



Hind wings with a band. - - melanorhodon. 



Hind wings with no band. 



Fore wings with distinct markings. 



Hind tibia3 green or greenish. 



Spines of the hind tibiae luteous. 



Keel of the prothorax well defined. - - semivittatum. 



Keel of the prothorax very slight. - mundatum. 



Spines of the hind tibiae whitish. - cancellatum. 



Hind tibia blue. maculipennis. 



Hind tibiae red. 



Prothorax with a distinct middle stripe. 



Prosternal spine slender. 



Spines of the hind tibiae white. - piceifrons. 



Spines of the hind tibiae yellow. - . literosum. 



Prosternal spine stout. 



Prothorax with no black spots. varipes. 



Prothorax with a large black spot on each side. - carneipes. 



Prothorax with no distinct middle stripe. 



Hind wings iutescent. - - luridescens. 



Hind wings not Iutescent. 



Prothorax with many dark marks. - - vitticeps. 



Prothorax without dark marks. - femorale. 



Fore wings with no distinct markings. 



Legs spotted. - - pantherinum. 



Legs not spotted. 



Prosternal spine stout. 



Hind tibiae greenish. 



Hind femora red beneath. - - democraticum. 



Hind femora not red beneath. - vittigerum. 



Hind tibiae not greenish. 



Fore wings dark at the base. 



