ACRIDID^. 



619 



interrupted by the sligbt 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 obliijue, 

 siout, 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 tibiae 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. 



Genus ACRIDIUM, C. D. S. 576. 

 America. 



A. Tip of the vertex not transversely subelliptical, uor tapering, 

 a. Prothorax not widening much bindward. 



* Hind femora black. - . - - melanocerum. 



** Hind femora not black. 



f Hind wings with a band. - - - melanorhodoii. 



■\\ Hind wings with no band. 



J Fore wings with distinct markings. 



§ Hind tibiffi green or greenish. 

 X Spines of the hind tibiae luteous. 



o. Keel of the prothorax well defined. - - semivittatum. 



00. Keel of the prothorax very slight. - - mundatum. 



X X Spines of the hind tibiiE whitish. - - - cancellatum. 



§§ Hind tibiae blue. - - - _ raaculipennis. 



§§§ Hind tibiae red. 

 X Prothorax with a distinct middle stripe. 



0. Prosternal spine slender. 



-V Spines of the hind tibis white. . . . piceifrons. 



H — t- Spines of the bind tibiae yellow. - - . lilerosum. 



00. Prosternal spine stout. 



-1- Prothorax with no black spots. . . - varipes. 



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



X X Prothorax with no distinct middle stripe. 



o. Hind wings iutescent. .... luridescens. 



00. Hind wings not Iutescent. 



-i- Prothorax with many dark marks. ... vitticeps. 



-n- Prothorax without dark marks. . - . femorale. 



+1 Fore wings with no distinct markings. 



§ Legs spotted. ... - - pantherinum. 



^ Legs not spotted. 



X Prosternal spine stout. 



o. Hind tibiiE greenish. 



-*- Hind femora red beneath. - - - democraticum. 



-+-+■ Hind femora not red beneath. - . - vittigerum. 



00. Hind tibiae not greenish. 



->- Fore wings dark at the base. 



