1913.] NATURAL SCIENCES OF PHILADELPHIA. 331 



All of these specimens, except the March 30 female, have the 

 tegmina distinctly maculate, the exception having the discoidal field 

 with the faintest possible indication of the usual blotching. The 

 male and female taken March 30 were in coitu, and the two represent 

 the extremes in maculation of the discoidal field of the tegmina. 

 The anal field of the tegmina is unicolorous in all of the specimens. 



Information with one specimen is to the effect that the species is 

 "common." 



Northward this form has an extensive range, while the southern 

 border of its distribution extends from Jujuy (Giglio-Tos) eastward 

 to Buenos Aires (Giglio-Tos) and Rio Grande do Sul, Brazil (Rehn). 



Elaeochlora viridicata (Serville). 



1839. Xiphicera viridicata Serville, Hist. Nat. Ins. Orthopt., p. 614. 

 [Buenos Aires.] 



Buenos Aires. February 14 and 20, 1909. Three males. 



Misiones. January 3 and 5, 1910; February 1, 1910; March 

 20-26, 1910; December 3, 1909; December 12 and 24, 1910. (No. 

 2.) Six males, eight females. 



The Buenos Aires specimens are typical of the species, while the 

 Misiones series is referred here with some doubt, differing much 

 as does the Sapucay, Paraguay representation previously examined 

 by us." The pronotum is, in the Misiones specimens, more compressed 

 than in Buenos Aires individuals, the fastigium shorter and broader 

 in the male, being more of an equilateral triangle, and the coloration 

 different, the median line of the pronotum being much narrower, 

 while the humeral regions of the pronotum of the male are washed 

 with dull purplish and the caudal tibiae of the same sex are wax yellow 

 to pale orange, without reddish as in typical viridicata. The females 

 have the tibiae green as in Buenos Aires specunens, the spines and 

 tarsi usually without sanguineous, although this is indicated in 

 two Misiones individuals. It is probable that the Sapucay and 

 Misiones series are specifically or subspecifically distinct from 

 viridicata, but we have refrained from recognizing their differences 

 with a name. It seems more desirable at present to get a better 

 conception of the real value of these differences, which can only be 

 done by the acquisition of more material from a number of localities. 



This species has been recorded from points extending from the tj^pe 

 locality north to Chapada, Matto Grosso, Brazil. 



3' Proc. Acad. Nat. Sci. Phila., 1907, p. 174. 



