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Issue: Vol. 4088 No. 2: 9 Mar. 2016
Type: Article
Published: 2016-03-08
DOI: 10.11646/zootaxa.4088.2.7
Page range: 257–267
Abstract views: 47
PDF downloaded: 2

Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s.str. with the description of a new species from East Siberia (Collembola: Isotomidae)

Moscow State Pedagogical University, Kibalchicha str., 6, korp. 5, Moscow, 129278, Russia.
Moscow State Pedagogical University, Kibalchicha str., 6, korp. 5, Moscow, 129278, Russia.
Collembola dimorphism Buryat Republic furcal apparatus

Abstract

Phenotypic dimorphism of four species of the genus Proisotoma s.str. is described. The modified specimens are characterized by protruding corneas of eyes, stronger pigmentation, enlarged and more chitinized furca, and extension of clavate tenent hairs in the distal part of the tibiotarsi. The characteristics of the modified specimens indicate higher mobile activity. Both sexes are affected by the dimorphism, with the "mobile" forms mostly co-occuring during the cold season with normal specimens. Proisotoma dualis sp. nov. is described from Buryat Republic.

 

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