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Arctic Collembola I: Alaskan Collembola of the Families Poduridae, Hypogastruridae, Odontellidae, Brachystomellidae and Neanuridae

Identification KeyJournal / Magazine

Series: Entomologica Scandinavica Supplements Volume: 21

By: Arne Fjellberg (Author)

126 pages, 418 b/w line drawings

Entomological Society of Lund, Sweden

Paperback | Dec 1985 | #24958
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About this book

The paper provides information on taxonomy, ecology and biogeography of 85 species of Alaskan podurids. A few Siberian species that might be found in Alaska. are included. New records from NE Siberia (Chukotka) are reported. Identification keys to genera and species are given. The following 20 new species are described: Hypogastrura (H.) tooliki, H. (Mucrella) denali, H. (Cyclograna) wallmoi, H. (Ceratophysella) isabellae, Xenylla betulae, Willemia granulata, Friesea alaskella, Pratanurida tananensis, P. foxi, Micranurida porcella. M. valiana, Anurida beringi, A. interior, A. martynovae, A. narli, A. reducta. A. similis. A. subarctica, Paranura sitchensis, Neanura (Endonura) tundricola.

Mucrella, including 1 European, 1 Asiatic and 2 or 3 Nearctic species, is described as a new subgenus of Hypogastrura. A new genu, Christobella, is erected for Nenaura ornata Folsom. The following new synonyms are established: Hypogastrura concolor var. setosa Schött, 1923 and Hypogastrura spitsbergensis Stach, 1962 = Achorutes dubius Tullberg, 1876 which has the valid name Hypogastrura tullbergi (Schäffer, 1900). Hypogastrura essa Christiansen & Bellinger, 1980 = Hypogastrura pannosa Macnamara, 1922. Hypogastrura hirsuta Valpas, 1967 and Ceratophysella arctica Martynova et al., 1973 = Achorutes longispinus Tullberg, 1876. Willemia aspinata Stach, 1949 = Willemia denisi Mills, 1932. Friesea nauroisi Cassagnau, 1958 = Friesea quinquespinosa Wahlgren, 1900. Anurida frigida Fjellberg, 1973 = Micranurida polaris Hammer, 1954. Kodiakia prima Bödvarsson, 1960 and Kodiakia aleuta Bödvarsson, 1960 = Neanura serrata Folsom, 1916.

Lectotypes of the following species are designated: Hypogastrura tullbergi (Schäffer), Hypogastrura concolor (Carpenter), Anurida papillosa (Axelson) and Morulina gigantea (Tullberg).

ln addition the type material of the following species have been examined: Hypogastrura navicularis (Schött), H. distincta (Axelson), H. essa Christiansen & Bellinger, H. macrotuberculata Hammer, H. trybomi (Schött), H. longispina (Tullberg), H. maheuxi Butler, Xenylla canadensis Hammer, Friesea quinquespinosa Wahlgren, Micranurida spirillifera Hammer, M. furcifera Mills, Anurida decemoculata Hammer, A. weberi Christiansen & Bellinger, A. papillosoides Hammer, A. polaris (Hammer), Paranura quadrilobuta Hammer, Morulina kotzebuensis Bödvarsson, Morulodes primus (Bödvarsson), M. aleutus (Bödvarsson).

The status of several Pseudachorutinae genera are discussed (Pratanurida, Stachorutes, Protachorutes, Micranurida, Anurida). The species endroedii Dunger and sensillata Gisin are transferred from Anurida to Micranurida.

Apart from generally distributed species, the following distributional patterns were found: Arctic, Hudsonian, Brooks Range/Alaska Range (Alpine) and Pacific coastal. A definite Aleutan element could not be demonstrated.

The Alaskan fauna of the poduride families is dominated by the 32 species of Hypogastrura s.l. The Anurida complex (Pratanurida, Micranurida, Anurida) appears particularly well differentiated in Beringia with 20 species present in Alaska.


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