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Author: Arne Fjellberg

Abstract

The new species Choreutinula kulla sp. n. is described from dry warm seashore habitats in southern Norway and Sweden. It differs from the other European species of the genus, C. inermis (Tullberg, 1871), by smaller body size, coarser skin granulation, longer maxillary lamellae and less setae on the ventral tube. Also the habitat preferences of the two species are probably different as inermis is usually found in forests, often in bark on live conifers.

In: Insect Systematics & Evolution
In: The Greenland Entomofauna
Author: Arne Fjellberg
This is the first part of a multivolume monograph dealing with the about 400 species of springtails (Collembola) which are known to occur in the Nordic countries, including the Arctic Islands. Volume 1 contains richly illustrated identification keys and full descriptions of 161 species of the section Poduromorpha. The geographical distribution and the preferred natural habitats of the species are summarised.
New morphological concepts in species diagnostics are introduced, in particular concerning the mouthparts' morphology which greatly aids in precise identification of the many difficult species of the family Onychiuridae.
The book will be indispensable to everyone working with springtail identification in northern Europe. The introduction of new diagnostic characters will be of universal interest to any Collembola taxonomist.
Author: Arne Fjellberg
This volume completes the survey of the ca. 400 species of springtails, which can be found in Finland, Sweden, Norway, Denmark, Iceland, the Faroes and the Arctic Islands and includes the sections Entomobryomorpha and Symphypleona. The first volume, published in 1998, covered Poduromorpha. Identification keys and full descriptions of the species are richly illustrated by line drawings. Photos are provided for some species displaying characteristic patterns of pigmentation. New diagnostic characters, including sensillary chaetotaxy and details of the mouth apparatus, are introduced.

With the appearence of this book soil scientists and the interested amateur have now a modern tool to identify all species of Nordic springtails. In addition the habitat preferences and geographical distribuition are summarised. The book will be of general interest to everyone working on springtail identification.

Author: Arne Fjellberg

Abstract

Five species and two genera of Odontellidae are reported from the Canary Islands. Two species are described as new: Axenyllodes microphthalmus sp. n. and Axenyllodes nematodes sp. n. A supplementary description is given to Pseudostachia populosa (Selga).

In: Insect Systematics & Evolution
Author: Arne Fjellberg

Abstract

Vertagopus sarekensis (Wahlgren) was found on dry localities in alpine region in Northern Norway and Swedish Lappland, where it ascends to the highest mountain tops (2000 m a.s.l.). It is separated from V. westerlundi (Reuter), besides in colour, by morphological details of antenna, number of ventral setae of thorax and abdomen, shape of mucro and general clothing. Adults in reproductive phase show a distinct sexual dimorphism: Abdominal macrochaetae of the male are much shorter and thicker than in the female, and setae of the characteristically swollen frons are thick and thorn-like. A lectotype of V. sarekensis is designated.

In: Insect Systematics & Evolution
Author: Arne Fjellberg

Abstract

Several collections of Knowltonella idahoensis Wray, 1958 were made from bark scales on live spruce and pine in the Kananaskis Valley, Alberta. The species is redescribed and given the status of subgenus (monotypic) of Schoettella Schäffer.

In: Insect Systematics & Evolution
Author: Arne Fjellberg

Abstract

Six types of tibiotarsal chaetotaxy are recognised among genera of the subfamily Tullbergiinae. The most complete chaetotaxy is found in the nearctic species Thllbergia clavata Mills, while the most reduced type is displayed by many species of Mesaphorura and related genera.

In: Insect Systematics & Evolution
Author: Arne Fjellberg

Abstract

Four types of tibiotarsal chaetotaxy are observed among Willemia species. Most species display an almost complete 'poduromorph' pattern, but the three species multilobata Gers & Deharveng, arida sp.n. and buddenbrocki Hüther differ by an increasing reduction in number of setae. W arida sp. n. is described from dry habitats in Colorado, Alberta, British Columbia and Alaska.

In: Insect Systematics & Evolution
Author: Arne Fjellberg

Abstract

After one year of collecting, the number of known Collembola species from the Canary Islands was increased from 41 to about 220. Identification keys to the Canarian families and genera are given. Keys, taxonomical notes and details of distribution and ecology are given for 29 species of the family Hypogastruridae. The following new species are described: Xenylla hexagona sp. n., X. gomerensis sp. n., X. laurisilvae sp. n., Xenyllogastrura arenaria sp. n., X. reducta sp. n., Acheroxenylla canariensis sp. n., A. furcata sp. n., Acherongia huetheri sp. n.

In: Insect Systematics & Evolution