Rev, H. Clark on the CkrysomelitUe of South Africa. 115 



T", posterior sac* of the liver ; o, appendage to the eve, of unknown 

 import; «, median frontal process; t, orange-coloured oil-drops. 



tig. 1. Young Nauplius of a PeneuM, from the sea of Santa Catharina ; 

 from above. 



Fig. 2. Foot of third pair of an older Nauplius, with the rudiment of the 

 mandible : a, from below; b, from the side. 



Fig, 3. Young Zoi^a of the same, from above. 



Fig. 4. Parts of the mouth of the same Zoea, from below. 



Fig. 5. Eyes of a somewhat older Zoifa. 



Fig. 6. Older Zoea of the same, from below. 



Fig. 7- Mandible of an older Zeia. 



Fig. 8. Young 3/yiu-fc»in of th« Mane species, from the side. 



Fig. 9. Part of the basal joint of the inner antenna, with developed audi- 

 tory apparatus, from a larva 4 mill, in length. 



Fig. 10. Frontal process and inner antenna of the third Ifjrm-like larva, 

 from above. 



XII. — Catalogue of ChrytomelitUt of South Africa, 

 By the Rev. Hamlet Clakk, M.A., F.L.S. 



Each of the three great regions in the soathem hemisphere 

 pottesses a fauna (as we might expect) peculiarly its own : in 

 the beautiful Coleopterous group the Ckrytomelida, this fauna 

 is represented in South America by the special genus Dory- 

 phora (which is the subject of the excellent monograph by 

 Dr. Stil), in Australia \rs sereral special genera, PhyUocharit, 

 Australaca, Chalcomela, &c. (which have been well and fully 

 studied by Mr. Baly in his papers in the Entomological Society's 

 Transactions), and especially by Paropis; and in South Africa 

 by certain genera which have a nearer affinity to European forms 

 than any of the preceding, but the species of which have never 

 yet been critically examined. This I propose to attempt. By 

 the kindness of my friend Mr. Baly, I have the advantage of 

 access to his rich collection ; and so I am encouraged to hope 

 that the comparatively few South-African species may be with- 

 out much difficulty deteruiined. 



The species of this paper includes the representatives of the 

 two MS. genera Atechna, Chev., and Centroscelis, Chev. (De- 

 jean's Catdogue, ed. 3, p. 427) : I can discover no real difference 

 between them ; they both are united by Hope (Coleopterist's 

 Manual, pt. 3. p. 164) under the name of Polysticta : his dia- 

 gnosis is too brief, and not quite accurate ; but it is clear that 

 these are the forms which he had before him (" the majority of 

 the species are remarkable for the number of the guttae or spots 

 with which they are adorned") ; and hence it is right that his 

 name should be preserved. The following analysis of the genus 

 will explain the arrangement of the species. 



8* 



