Bruner: South A.merican Acridoidea. L35 



[89. Parascopas chapadensis Rehn. 

 Parascopas chapadensis Rehn, Proc. U. S. Nat. Mus., XXXVI, pp. 159-162, 

 figs. 38, 39 (190 



Habitat. Chapada, Brazil in April MI. II. Smith). 



[90. Parascopas obesus (Giglio-Tos). 



Seopas obesus GlCLlO-Tos. Boll. Mus. Zool. Anat. Torino, IX, no. 184, p. 29 (1894). 

 Parascopas obesus Bruner, Proc. (J. S. Nat. Mus., XXX, p. 689 (190 



Habitat. — Corumba, Brazil, in March (II. II. Smith). 



A third species, P. sanguineus Brunei-, has been added to this genus 

 ( Ent. News, XXI, pp. 306-307, 1910). It comes from Puerto 

 Bertoni, Paraguay, which is in the same general region. 



Genus Eurotettix Bruner. 

 Eurotettix Bruner, Proc. U. S. Nat. Mus., XXX, pp. 643, 691 (1906). 



The representatives of the present genus seem to be confined in 

 their distribution to a rather limited region embraced in Paraguay, 

 northern Argentina, and southern Brazil. Like the majority of the 

 other Melanopline locusts they arc grasshoppers, i. e., they are most 

 frequently found in open grassy localities. The two previously known 

 forms, together with a third now described, are readily separable by 

 the annexed synoptic table: 



Synopsis of the Species of Eurotettix. 



A. Larger (cT, 18. 5-19 mm.). Hind tibiae vinaceous, the lower sulcus of hind 



femora flavous with a pinkish tint internally near base.. robustus sp. now 



.1.1. Smaller (6*. n-15 mm.). Hind tibiae purple or lavender, lower sulcus purple, 



or scarlet. 



b. Hind femora very robust, without indications of dusky bands across their 



upper edge. The lower sulcus deep purple femoratus Bruner. 



bb. Hind femora less robust, their upper edge with two dusky bands. The 

 lower sulcus scarlet minor Bruner. 



191. Eurotettix robustus sp. nov. 



A much larger and more robust insect than either of the previously 

 described species, in which the tegmina of the female overlap on the 

 dorsum. Hind femora robust, the tibiae vinaceous. While th< 

 eral color of this insect is ferruginous, there is a faint tinge of 1 ilivaceous 

 in the male above and on the anterior and middle femora. 



Head inserted into pronotum almost to the eyes and about as wide, 

 the occiput rounding and gently elevated above the plane of the pro- 



