124 Mr. Waterhouse on Carabideous Insects. 



Sp. 9. Feronia Nebrio'ides, Omaseus Nebrioides, Curtis, Linn. Trans, 

 vol. xviii. p. 191. 



In Mr. Darwin's collection are four specimens of this species, two 

 of which are from E. Chiloe, one is from Valparaiso, and the fourth 

 is from Concepcion. 



F. Nebrio'ides greatly resembles F. cerea in colour, form, and scul- 

 pturing, but is not more than half its size. The Feronia erratica of 

 Guerin (Mag. de Zool. pi. 226. fig. 3.) agrees very nearly with this 

 species, but there is no mention of the brassy tint of the upper parts 

 which is observable in the F'. Nebrio'ides ; in the figure there .is an 

 admixture of green in the colouring. 



Sp. 10. Feronia lucidus. Pterostichus lucidus, Curtis, Linn. Trans, 

 vol, xviii. p. 192. 



This species greatly resembles the F. chalcea of Dejean ; but in 

 that insect the sides and apical portion of the elytra are almost 

 smooth, the striae being obliterated on those parts as in F. Corinthia, 

 whilst in F. lucidus the striae are distinct throughout the elytra. 



Sp. 11. Feronia meticulosa, Dejean, Spe. general des Coleopteres, 

 Suppl. torn. V, p. 762. 



Three specimens of this species occur in Mr. Darwin's collection; 

 they are from Valparaiso. This insect, no doubt, is allied to that 

 division of Feronia called Steropus, but is remarkable for having the 

 second, third, fourth and f/th striae of the elytra less distinct than 

 the sutural stria, and those on the outer margin ; in one of the three 

 specimens the intermediate striae are almost obliterated, but in the 

 others they are more distinctly marked. 



Sp. 12. Feronia (Steropus) marginata. 



This is a new species closely allied to the last, having the inter- 

 mediate striae of the elytra almost obliterated ; those on the margin 

 of the elytra are remarkably distinct, and give to the insect a pecu- 

 liar appearance ; it is less than half the size of F. meticulosa, which 

 is about equal to the F. octopunctatus. In both species the elytra 

 appear to be soldered together. 



Fer. picea, vel nigra ; antennis pedibusque rufo-2)iceis ; thorace 

 subquadrato, angulis jiosticis rotundatis ; elytris oblongo-ovatis, 

 striatis, striis intermediis obsoletis. 

 Long. corp. 3| — 4 lin. ; lat. Ig — 1^. 

 Hab. Chile. 



This species bears a considerable resemblance to the Taphria 

 vivalis. The head is somewhat rounded in front, and the eyes are 

 but little prominent ; the frontal grooves are scarcely discernible. 

 The thorax is about one-third broader than the head, about equal 

 in length and breadth, somewhat convex, a little broader before 

 than behind, and the anterior and posterior angles are rounded ; the 

 dorsal channel and posterior foveae are indistinct. The elytra are 

 of an oblong-ovate form, not very much broader than the thorax, 

 and slightly sinuated at the apex ; the sutural stria is distinct but 

 not deep, and impunctate ; the four following striae are almost 



