Simuliidae (Diptera) of Rendalen, Norway. Description of a new species of Eusimulium (Hellichiella) and previously undescribed stages of Eusimulium rendalense and Eusimulium fallisi
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Eusimulium (Hellichiella) usovae n.sp. is described in the larva, pupa, and adult female and male. The larva, pupa, and male of Eusimulium rendalense Golini and pupa of Eusimulium fallisi Golini are described for the first time. These three species are closely related; the first two are distinguished by a few consistent characters in all their developmental stages. Eusimulium fallisi is distinguished in the female from the other two species; its larva and adult male are still unknown. Keys distinguishing the stages of these species are provided. The immature stages of these species occur sympatrically in sedge – Sphagnum bog – fens, in slow water with currents of 1 to 30 cm/s.
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2003 ◽
Vol 34
(4)
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pp. 373-379
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