61 



Z. tarmia Serv. This iiifsuct is very common throughout 

 central and northern Arg-entina where it occurs for the most 

 part on low ground or in the vicinity of water where 

 vegetation is rank. It has sometimes been reported in suffi- 

 cient numbers to cause noticeable injury to vegetation. (All 

 of the collections). 



Fitr. 26.~Zoniopod(i taisuta Serv.— male 



Fi^. 27. — Zoniopoda ouniicolor Serv. — female 



Z. jiniconiin Berg. This insect has been reported only 

 from swampy localities where it occurs sparingly upon 

 rushes growing in the water. Specimens have been 

 recorded from San Lorenzo, Jujuy, and Resistencia, Chaco 

 (Giglio-Tos) ; Buenos Aires (Dr. Berg). 



Z. > onniicn/or Blanch. Found moderately abundant at 

 Cordoba. This insect was described and figured by Blancluird 

 in Voyage dans I'Amer. merid., Vol. VI, pt. 2, Ins. j). (l'K)) 

 PI. XXVII, tig. 8, and aj^pears to be the same one described 

 by Stal (Recens. Orth., I, l^s?;], p. ~)'2) as Z. eiii(ir<jiii(i1<i. 



Note. Bolivar described an insect under the nauie of 

 Zoniopoihi pivta (Viaje al Pacif., Orth., 1884, p. 37) that later 

 seems to have been placed in the genus Dipont/iu.s and given 

 the sjjecitic name pnclcIniH (Pictet et Saussure, Cat. d' Acrid., 

 in Bull. Soc. ent. Suisse, VII, p. o?.')). 



