The geographical distribution of animals, with a study of the relations ...

458 ZOOLOGICAL GEOGRAPHY. [part hi.genera, two of which are peculiar (Odontria and Stethaspis) ;andtwo Australian (Pericoptus and Calonota). There are noCetoniidse.There is only one Buprestid, belonging to the Australian genusCisseis. The Elateridae, (about a dozen species,) belong mostlyto Australian genera, but two, Metablax and Ochosternus, arepeculiar.There are 30 species of Curculionidse, belonging to 22 genera.Of the genera, 12 are peculiar ; 1 is common to New Zealandand New Caledonia ;restare widely distributed.Longicorns are, next to5 belong to the Australian region, and theCarabidse, the most numerous family,there being, according to Mr. Bates (Ann. Nat. Hist., 1874), about35 genera, of which 26 are peculiar or highly characteristic,and 7 of the others Australian.The largest and most characteristicgenera are JEmona and Xyloteles, both being peculiar toNew Zealand ; few of the remainder having more than one ortwo species. Demonax extends to the Moluccas and S. E.Asia.A dozen of the genera have no near relations with thoseof any other country.Phytophaga are remarkably scarce, only two species ofColaspis being recorded ; and there is only a single species ofCoccinella.The other orders of Insects appear to be equally deficient.Hymenoptera are veiy poorly represented, only a score of speciesbeing yet known ; but two of the genera are peculiar, as are allthe species. The Neuroptera and Heteroptera are also veryscarce, and several of the species are wide-spread forms of theAustralian region. The few species of Homoptera are allpeculiar. The Myriapoda afford some interesting facts. Thereare nine or ten species, all peculiar. One genus, Lithobius,ranges over the northern hemisphere as far south as Singapore,and probably through the Malay Archipelago, but is not foundin Australia. Henicops occurs elsewhere only in Tasmaniaand Chili. Cryptops, only in the north temperate zone ; whiletwo others, Cermatia and Cormocephalus, both occur inAustralia.