from the Island of St. Vincent. 97 



angles (which arc not so rounded), is very much less developed 

 or recurved. Its antennre, moreover, are somewhat paler and 

 less robust, and its elytral patch is perceptibly smaller and more 

 dentate. 



Genus Amblystomus. 



Erichson, Kaf. der Mark Brand, i. 59 (1837). 

 9. Amblystomus viridulus, Erich. 

 Hispalus viridulus, Erichs., in Wiegm. Arch. ix. 217 (1843). 

 Several specimens of this distinct Amblystomus were captured 

 at St. Vincent by Mr. Gray and the Rev. Hamlet Clark, in De- 

 cember 1858, amongst light soil around the roots of a succulent 

 plant which they described as common near Porto Grande ; and 

 two more from the same locality have lately been communicated 

 by Mr. Fry. Judging from the diagnosis, there can be no doubt 

 that it is the insect recorded by Erichson, in Wiegmann^s ' Archiv 

 fiir Naturgeschichte,^ amongst the Coleoptera professedly from 

 Angola, — but many of which were from these islands, and not 

 from Angola at all. The unfortunate mistake, indeed, which 

 involved Erichson in the serious error of believing that all the 

 specimens amassed by the collector, who died before his return 

 to Germany, were from Angola, cannot be too much regretted ; 

 for an amount of confusion has been introduced thereby into the 

 question of the geographical distribution of species which will 

 scarcely ever perhaps be completely dissipated. It appears that 

 this collector touched at the Cape de Verdes on his passage to 

 the African coast, and that the material from both localities were 

 mixed up indiscriminately, which will, at any rate, account for 

 the fact that so many of the Cape de Verde insects are wrongly 

 associated with Angola, and were inadvertently described by 

 Erichson in his paper above alluded to. 



Fam. Dytiscidse. 



Genus Eunectes. 



Erichson, Gen. Dytic. 23 (1832). 



10. Eunectes conicollis, n. sp. 



E. ovatus, angustulus, luteo-griseus, clypeo antice vix emarginato ; 

 capita postice nigro et macula frontali magna plus minus suffusa 

 antice bipartita ornate ; protliorace vitta transversa abbreviata 

 ornate, ad latera oblique rectissime, angulis posticis acutiusculis ; 

 scutello subtriangulari ; elytris puuctis magnis sat profundis tri- 

 plici serie et punctulis mineribus nigro-notatis, singulis maculis 

 duabus miuutis sublateralibus et fascia transversa tenui dentata 

 pestica (plus minus obsoleta) nigre-ernatis. 



Long. cerp. lin. d\-^\. 



Although fully aware of the many phases which the universal 



