Pekka T. Lehtinen - Academia.edu (original) (raw)

Papers by Pekka T. Lehtinen

Acta Amazonica, 1999

A new genus of Neothyridae, type species Diplothyrus schubarti sp. n., is described from the leaf... more A new genus of Neothyridae, type species Diplothyrus schubarti sp. n., is described from the leaf litter of a primary forest in the Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brazil. The two pairs of lateral excretory orifices instead of a single one in the type genus Neothyrus of the family Neothyridae, are diagnostic. A protonymph of Neothyrus ana Lehtinen, 1981, is also described as the first known nymphal stage of this family.

Entomologica Fennica, 1995

Labidostommidae represents the only well sclerotized group of actinedid (prostigmatid) mites in F... more Labidostommidae represents the only well sclerotized group of actinedid (prostigmatid) mites in Finland. This study confirms the presence of Labidostomma luteum Kramer, 1879 in southernmost Finland. This species has previously been reported in the nests of forest-dwelling singing birds without locality data, though the records were most probably based on misidentifications. Although it has not been found in arboreal nests, its known habitats in Finland indicate a wide ecological range within the SW archipelago. It has a patchy distribution and has been found in less than 8% of Berlese samples from suitable habitats in the SW archipelago. Only parthenogenetic populations of this species have been reported from Central Europe, with a limited area of bisexual populations in southern France. The 44 Finnish parthenogenetic populations have been mainly found in the SW archipelago on 29 islands. We report two mainland records from Sauvo in SW Finland with a widely separated record from Ylä...

Background The knowledge of terrestrial Parasitengona in Fennoscandia lies far behind that of the... more Background The knowledge of terrestrial Parasitengona in Fennoscandia lies far behind that of their aquatic counterparts, the water mites (Hydrachnidia). Based on new inventories, we provide primary data and an annotated checklist of terrestrial Parasitengona in Fennoscandia including 107 species. Out of these, nineteen species are new findings for the region and five are species potentially new for science. Twenty-three species are new for Norway, fourteen for Finland and eleven for Sweden. The known recorded fauna today of terrestrial Parasitengona is 80 species for Norway, 54 for Sweden and 48 for Finland. Primary data include georeferenced locality data as well as collecting techniques and microhabitat to increase the knowledge on species' habitat requirements.

Zootaxa, 2015

The monotypic genus Nukuhiva Berland, 1935 with N. adamsoni (Berland, 1933) as type species, is r... more The monotypic genus Nukuhiva Berland, 1935 with N. adamsoni (Berland, 1933) as type species, is re-described and transferred from the Pisauridae Simon, 1890 (fishing or nursery-web spiders) to the Lycosidae Sundevall, 1833 (wolf spiders) based on genitalic and somatic characters. Nukuhiva adamsoni, originally described from French Polynesia, appears to inhabit mountainous habitats of volcanic origin. Its troglobitic morphology-comparatively small eyes and pale, uniform coloration-suggest it to be associated with subterranean habitats such as caves or lava tubes, similar to the Hawaiian troglobitic species Lycosa howarthi Gertsch, 1973 and Adelocosa anops Gertsch, 1973.

Arachnology, 2008

ABSTRACT

Journal of Arachnology, 2005

Invertebrate Systematics, 1995

A revised classification of the Holothyridae is presented. The family is restricted to archipelag... more A revised classification of the Holothyridae is presented. The family is restricted to archipelagoes from Melanesia to the Seychelles, with no known records from any continent. Evolution of holothyrid characters, phylogenetic relationships of the eight holothyrid genera and criteria for taxonomic categories in Holothyridae are discussed.Holothyrus braueri Thon, 1905, from the Seychelle Islands, is selected as the type species of a new genus, Sternothyrus. A new genus, Lindothyrus, is created for L. rubellus, sp. nov., from the western coast of New Caledonia, and L. elongatus, sp. nov., from Lord Howe Island, Australia. Indothyrus greeni, gen. et sp. nov., is described from Sri Lanka. Hammenius (Leiothyrus) Hammen, 1983 is raised to generic rank and Holothyrus nitidissimus Thorell, 1882 from the Fly River, and H. armatus Canestrini from Tamara Island (Aitape), both New Guinea, are included in this genus. The two previously known New Guinean genera, Thonius Lehtinen, 1981 and Hammeniu...

Biological Journal of the Linnean Society, 1995

... Nesticodes rujpes (Lucas, 1845) (Theridiidae) was found on Pitcairn and also ... Friga mocuta... more ... Nesticodes rujpes (Lucas, 1845) (Theridiidae) was found on Pitcairn and also ... Friga mocuta (Taczanowski, 1872) (Salticidae) found on Henderson, was previously known in the Pacific region as Sandalodes cahus (Simon, 1902). ...