PLATE XXVII. 
Fig. 1. Fifth instar of Palmacorixa buenoi. 
Fic. 2. Male Palmacorixa buenoi from Beebe lake. 
Fic. 3. Male Palmacorixa buenoi from Bool’s Backwater, nearby. 
These sizes are distinct. : 
Fic. 4. Fourth instar nymph of Palmacorixa buenoi. 
Fig. 5. Third instar nymph of Palmacorixa buenoi. 
FIG. 6 
Fig. 7 
Fic. 8. First instar nymph of Arctocorixa alternata. N. Y. variety. 
Fic. 9. 
Fig. 10. Third instar nymph of Arctocorixa alternata. N. Y. variety. “4 
Second instar nymph of Palmacorixa buenoi. 
First instar nymph of Palmacorixa buenoi. 
Fourth instar nymph of Arctocorixa alternata. N. Y. variety. 
Fic. 11. Second instar nymph of Arctocorixa alternata. N. Y. variety. iy 
Fic. 12. Fifth instar nymph of Arctocorixa alternata. N. Y. variety, — 
Compare the various instars of the two bugs as to color pattern. 
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