116 “Rev. H. Clark on the Chrysomelide of South Africa. 
Group Chrysomeline. 
Genus Potysticta, Hope, Col. Man. pt. 3. 164, 
A. Elytris flavis vel testaceo-flavis; nigro notatis. 
1. nigro-signata, Bhi. 5. 24-signata, Thunb. 
2. striata, lad. G. macularis, Dej., n. sp. 
3. subcruciata, n. sp. 7. nigro-fasciata, n. sp. 
4. eburnipennis, n. sp. 8. pulchella, n. sp. 
B. Elytris nigris vel rufo-nigris. 
a. Unicoloribus. 
9. levigata, n. sp. 1]. nigra, n. sp. 
10. nigro-zenea, n. sp. 
b. Plagis longitudinaliter (plus minus irregulariter) signatis. 
12. Marshalli, n. sp. 15. alternans, abr. 
13. picturata, n. sp. 16. soluta, n. sp. 
14. lineolata, n. sp. 
c. Guttis sat equalibus distinctis circularibus notatis. 
17. 14-guttata, Fab. 20. 10-pustulata, Thund. 
18. 20-guttata, Chev. 21. 20-maculata, n. sp. 
19. guttata, Lab. 
d. Guttis inequalibus, vel confluentibus vel irregulariter diffusis. 
( J d 
22. notata, Fab. 29. 18-punctata, n. sp. 
23. modesta, n. sp. 30. figurata, De., n. sp. 
i Bu os oD 
24. multifida, De. Cat. 31. difficilis, n. sp. 
da, De 
25. consimilis, n. sp. 32. clathrata, Dej., n. sp. 
3 “} +s 
26. simulator, n. sp. 33. Hebe, n. sp. 
27. elegantula, n. sp. 34. flavo-sparsa, n. sp. 
28. rufo-picta, n. sp. 35. vulpina, iad. 
1. P. nigro-signata, Bhn. 
P. ovalis, satis ampla, obsolete punctato-striata, rufa vel flavo-rufa, 
maculis nigris circularibus notata; capite inter oculos transverse 
arcuato-foveolato, impunctato, rufo ; oculis oblongo-ovalibus : tho- 
race transverso elytris angustiore, lateribus parallelis subtiliter 
marginatis antice rotundatis, disco subtiliter punctato, ad latera 
autem fortiter et crebre, rufo, maculis 5 circularibus ornato, 
4 mediis (serie transversa ordinatis), 1 antice ad medium (hac in- 
terdum obliterata) : scutello leevi, nigro; elytris sat convexis, striato- 
punctatis, interstitiis subtilissime etiam aliter punctatis, rufis, 
maculis plurimis nigris, circularibus, ineequaliter dispositis, ali- 
quando confluentibus, interdum 20, interdum etiam 26, iterumque 
maculis confluentibus et vittas obliquas formantibus ; corpore sub- 
tus pedibusque rufis ; antennis rufo-fuscis, basi flavis. 
Long. corp. lin. 3-4; lat. lin. 23-33. 
As will be evident from the above diagnosis, the species before 
us (assuming the examples from which it is taken to consist of one 
