ILLUSTRATIONS 



Plate I 



Fig. 1. Centrochares horrificus Westwood, nymph. 



2. Pyrgonota semperi Stal, lateral outline. 



3. Pyrgonota semperi Stal, front view of apex of pronotal horn. 



4. Tricentrus fairmairei Stal, nymph. 



5. Tricentrus acuticornis sp. nov., lateral outline. 



6. Tricentrus acuticornis sp. nov., frontal outline. 



7. Cryptaspidia elevata sp. nov., lateral outline. 



8. Cryptaspidia longa sp. nov., lateral outline. 



2d 



