1926 ] 
Some N otonecta from South America 
15 
Notonecta polystolisma Fieb. var. spatulata var. nov. 
Fieber described five varieties under this species, one of 
which is quite certainly N. hifasciata. The other four are from 
Brazil and appear to be stages of pigmentation of a single species. 
Three of them he describes as having the “Schild gelblich.” 
The species which I have may be related to them, but since it 
does not fit any of his descriptions it seems best to give it at 
least a varietal name. In the twenty specimens I have before 
me the scutellum is typically black and none of them surpass 4 
lines in length. The vertex : synthlipsis : : 10 : 3. The anterior 
width of pronotum : posterior width of pronotum : : 23 : 35. 
The genital capsule of male is shown on Plate II, Figure 9. Des- 
cribed from 20 specimens from Sao Paulo, Brazil. Holot.ype, 
allotype and some paratypes taken at Ypirango, S. A. by R. 
Spitz. Others from Sao Paulo, Brazil, by unknown collector. 
Holotype, allotype, and some paratypes in author's collection. 
Others in the Museum of Sao Paulo. 
Notonecta bifasciata Gu6r. 
I have this species from Paraguay and various places in 
Argentina. The genital claspers in the male are quite different 
from any of the other species of this size (see Plate II, Figure 5.) 
It appears to be a common and abundant species. 
Description of Plate II. 
Notonecta hicirca sp. nov. Chile. Figure 1. 
Notonecta disturhata sp. nov. Brazil. Figure 2, 
Notonecta pulchra sp. nov. Paraguay. Figure 3. 
Notonecta hifasciata Guer. Argentina. Figure 5. 
Notonecta minuta sp. nov. Bolivia. Figure' 7. 
Notonecta polystolisma Fieb. var. spatulata var. nov. Figure 9, 
Figures 4, 6 and 8 are of previously named species but not 
of this series. 
