120 Mr, Waterhouse on Carabideous Insects. 



mily has probably suggested the remark by Prof. Don, that the re- 

 cent species " constitute the remains of a class of plants which be- 

 longed to a former vegetation." 



The interesting specimens of fossil fructification, apparently fur- 

 nished with a stem, belonging to this family, which exist in the col- 

 lections of the British Museum, Mr. Bean of Scarborough and Mr. 

 Saull of London, etc., have not been alluded to in this paper; they 

 probably constitute a new genus from being generally associated 

 with fronds having a pecuHar character, first pointed out to me by 

 M. Konig ; and I shall reserve any remarks on this subject until I 

 have completed some obsen^ations on the internal structure of the 

 stem and its affinity to Zamites. 



XVI. — Carabideous Insects collected by Charles Darwin, 

 Esq., during the Voyage of Her Majesty's Ship Beagle. By 

 G. R. Waterhouse, Esq. 



[Continued from vol. vi. p. 355.] 



Genus Feronia. 



Sp. 1. Feronia Corinthta, Dejean, Species general des Coleopteres, 

 tom. iii. p. 304. 



Molops Corinthia, Germ. Col. sp. nov. p. 21. 



Of this species Mr. Darwin obtained many specimens at Maldo- 

 nado. La Plata, and two specimens are labelled ' Monte Video.' It 

 is the Carabus striatulus of Fabricius, the original specimen of which 

 is contained in the Banksian collection. I speak without hesitation, 

 having compared Mr. Darwin's specimens with the original, with 

 Deiean's description, and also with three specimens sent from the 

 continent by different parties, all bearing the same specific name. 



The Feronia Corinthia is readily distinguished from all the Feronice 

 of the southern portions of South America hitherto discovered, by 

 its large size, and the elytra being deeply striated towards the suture 

 and almost smooth externally. The Feronia chalcea of Dejean is 

 closely allied to tlie present species, having very nearly the same 

 general form and similar sculpturing to the elytra ; but in size it is 

 much inferior, F. Corinthia being 8 lines in length, whilst F. chalcea 

 is only 5| to 6 lines in length ; the former is brassy black, and the 

 latter is of a brassy colour inclining to seneous. 



Sp. 2. Feronia chalcea, Dejean, Sp. general des Coleop. tom. iii. 

 p. 308. 



Four specimens of this species were brought from Maldonado, La 

 Plata, by Mr. Darwin. 



Sp. 3. Feronia cordicollis, Dejean, Species general des Coleop. 

 tom. iii. p. 306. 



Seven specimens of this species occur in Mr. Darwin's collection, 

 five of which are from Monte Video, and two from Maldonado, La 



