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Volume 66, 1937
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Distribution of the New Zealand Species of Collembola.

With the publication of this paper the number of species of Collembola known to occur in New Zealand becomes fifty-four, to gether with one colour-form. Of these the following twelve species are as yet known only from New Zealand:—

Hypogostrura campbelli Womersley 1930.

Polyacanthella parva n.sp.

Pseudachorutes pacificus n.sp.

Pseudachorutes novae-zealandiae n.sp.

Pseudachorutes brunneus Carpenter, 1925.

Pseudachorutes aldgidenssi Carpenter 1925.

Platanurida lata Carpenter 1925.

Holacantha spinosa (Lubbock) 1899.

Cryptopygus niger Carpenter 1925.

Lepidosira fuscata Womersley 1930.

Pseudoparonella bidenticulata (Carpenter) 1925.

Chaetoceras pritchardi n.sp.

In the followng list of the remainder the known distribution is given together with an indication of their economic importance:—

Hypogastruru armata (Nic.) 1841. Cosmopolitan. Economic.

Hypogastruru longispina (Tullbg.) 1876. Cosmopolitan.

Hypogastrura peseudopurpurascens Womersley 1928. Europe, S. Africa.

Brachystemella parvula (Schäffer) 1896. Cosmopolitan. Economic.

Triacanthella rosea Wahlgren 1906. Subantarctic.

Achorutes muscorum Templeton 1835. Cosmopolitan.

Achorutes cirratus Schött 1917. Australia, Brit. Solomon Is.

Onychiurus armatus Tullberg 1869. Cosmopolitan. Economic.

Onychiurus fimetarius Lin. 1766. Cosmopolitan. Economic.

Tullbergia krausbaueri Börner 1901. Europe, S. Africa.

Cryptopygus loftyensis Womersley 1934. Australia.

Folsomia fimetarioides Axelson 1903. Europe, Australia. Economic.

Folsomia diplophthalma Axelson 1902. Europe, America.

Folsomia quadrioculata Tullberg 1871. Europe, America. Economic.

Archisotoma brucei Carpenter 1906. Subantarctic.

Isotomurus chiltoni (Carpenter) 1925. Australia.

Isotoma maritima Tullberg 1871. Europe.

Isotoma notabilis Schäffer 1896. Europe.

Isotoma minor Schäffer 1896. Europe, America.

Isotoma linnaniemi Womersley 1934. Australia.

Tomocerus minor Lubbock 1862. Europe, Azores. Economic.

Lepidophorella australis Carpenter 1925. Australia.

Lepidophorella brachycephala (Moniez) 1894. Australia.

Sinella termitum Schött 1917. Australia.

Sinella coeca Schött 1896. Europe, America.

Entomobrya varia Schött 1917. Australia.

Entomobrya clitellaria v. newmani Womersley 1934. Australia (f. principalis), America and Australia.

Entomobrya nivalis L. 1758. Europe, S. Africa, Australia. Economic.

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Entomobrya nivalis f. immaqculata Schäffer 1896. Europe, S. Africa, Australia.

Entomobrya multifasciata Tullberg 1871. Cosmopolitan. Economic.

Lepidocyrtus nigrofasciatus Womersley 1934. Australia.

Lepidosira coerulea Schött 1917. Australia.

Lepidosira lamingtonensis Schött 1917. Australia.

Lepidosira sagmarius Schött 1917. Australia.

Pseudosinella fasciata Womersley 1934. Australia.

Pseudosinella alba (Packard) 1873. Europe, America.

Neelus swani Womersley 1934. Australia.

Sminthurinus terrestris Womersley 1932. S. Africa, Australia.

Katianna australis Womersley 1932. Australia.

Deuterosminthurus repandus (Agren) 1903. Europe, America, Tasmania. Economic.

Bourletiella arvalis (Fitch) 1863. Europe, America, Australia-Economic.

Bourletiella hortensis (Fitch) 1863. Europe, America, Australia, Japan. Economic.

Sminthurus denisi Womersley 1934. Australia.

Dicyrtomina minuta Fabricius 1783. Europe.

It is probable that those species which are of economic importance have a cosmopolitan distribution, or are known from the countries of the Old World and have become distributed in America and the Colonies by man's agricultural activities.

The occurrence in New Zealand of the littoral species Isotoma maritima is particularly interesting, and one might speculate as towhether it is indigenous or has been carried from the Northern Hemisphere by natural means or by man. The occurrence of several typical subantarctic forms, such as Triacanthella rosea and Archisotoma brucei, so far north is of much interest from the standpoint of geographical distribution. The first is recorded only [ unclear: ] southern South America, although another species, T. alba, has been described by Carpenter from the Campbell and Auckland Islands. Archisotoma brucei was described from the South Orkney Islands, so that its occurrence in New Zealand considerably extends its range. Its relative from the Northern Hemisphere, A. besselsi, however, has a much wider distribution, ranging from the subarctic to the southern coasts of Europe and from the Palaearctic to the Nearctic Regions.

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Fig. 1.—Raoulia Buchanani growing on lock at 1800 in altitude. Humboldt Mountains.
Fig. 2.—Cultivated specimen of Raoulia Buchanani in flower. Dunedin.