_Coleoptera._--It is among the beetles of South Temperate America that we find some of the most curious examples of remote affinities, and traces of ancient migrations. The Carabidæ are very well represented, and having been more extensively collected than most other families, offer us perhaps the most complete materials. Including the Cicindelidæ, about 50 genera are known from the South Temperate Sub-region, the greater part from Chili, but a good number also from Patagonia and the Straits of Magellan. Of these more than 30 are peculiar, and most of them are so isolated that it is impossible to determine with precision their nearest allies. The only remarkable form of Cicindelidæ is _Agrius_, a genus allied to the _Amblycheila_ and _Omus_ of N.W. America. Two genera of Carabidæ, _Cascellius_ and _Baripus_, are closely allied to _Promecoderus_, an Australian genus; and another, _Lecanomerus_, has one species in Chili and the other in Australia. Five or six of the peculiar genera are undoubtedly allied to characteristic Palæarctic forms; and such northern genera as _Carabus_, _Pristonychus_, _Anchomenus_, _Pterostichus_, _Percus_, _Bradycellus_, _Trechus_, and _Bembidium_, all absent from Tropical America, give great support to the view that there is a close relation between the insects of the northern regions and South Temperate America. A decided tropical element is, however, present. _Tropopterus_ is near _Colpodes_, a Tropical and South American genus; _Mimodromius_ and _Plagiotelium_ are near _Calleida_, a South American genus; while _Pachyteles_, _Pericompsus_, _Variopalpus_, and _Calleida_ are widely spread American groups. The preponderance of northern forms seems, however, to be undoubted. Six Carabidæ are known from Juan Fernandez, 3 being identical with Chilian species and 3 peculiar. As the island is 350 miles from the mainland, we have here a proof of how readily insects may be transported great distances.