Rev. H. Clark on the Chrysomelide of South Africa. 169 
-  - XVII.— Catalogue of Chrysomelide of South Africa. 
By the Rev. Hamer Crank, M.A., F.L.S. 
[Continued from p. 124. | 
17. Polysticta Clark, Baly, Trans. Ent. Soc. 1864. 
Two examples of a most beautiful species have just been re- 
ceived from Dr. Livingstone’s expedition, the exact locality of 
which was unknown, but in or near the Zambesi country: the 
species (the largest in the genus) is described in a paper read 
by my friend Mr. Baly at the last meeting of the Entomological 
Society, which will shortly be published in the ‘ Transactions.’ 
In the cabinets of Mr. Baly and the Rev. H. Clark. 
18. P. 14-guttata, Fab. Ent. Syst. Suppl. 85. 28; 
Syst. El. 1. 432. 55. 
One of the most common of the South-African Chrysomelas. 
19. P. 20-guttata, n. sp. 
P. ovalis, penitus rotundata, punctato-striata, nigra, maculis 20 cir- 
cularibus flavis; capite subtilissime punctato, ad medium longitu- 
dinaliter foveolato, rufo, labro interdum nigro; thorace elytris 
angustiore, lateribus penitus parallelis, tenuiter marginatis, disco ad 
latera crebrius et fortiter, ad medium leviter punctato, nigro (ma- 
cula rufa interdum undique ad latera, interdum ad medium trans- 
verse apparet et magnitudine et facie quam plurimum varians) ; 
scutello subtriangulari, levi, nigro; elytris sat convexis, fere 
rotundatis, seneo-nigris, maculis undique 10 flavis, circularibus, 
insulatis, fere eequalibus; corpore subtus nigro, pedibus rufis, 
antennis rufo-fuscis. 
Long. corp. lin. 33-33; lat. lin. 24-3. 
I register this as a separate species with much doubt : it is 
decidedly more round, less oblong, than P. 10-pustulata, Thunb., 
and the punctures on the striz seem to be a trifle more minute 
and more separated than in that species. It represents a form 
that is very common at the Cape. 
20. P. guttata, Fab. Ent. Syst. i. 313. 28. 
P. pardalina (Coccinella), Fab. Syst. El. i. 386; Ent. Syst. i. 291.115. 
P. 20-guttata, Oliv. (teste Chev.). 
P. 10-pustulata, Thunb. Mus. Nat. Acad. Upsal. iv. 44.4; Act. Reg. Soc. 
Upsal. vii. 182. 
A remarkable black variety of this common species has been 
sent home by my friend Mr. Trimen. The elytra are black, the 
apex being generally obscurely rufous ; the thorax of a bright 
yellow colour, with the usual markings of fuscous. 
21. P. 20-maculata. 
-P. ovalis, sat gibbosa, punctato-striata, rufo-ferruginea ; capite punc- 
