FRONTISPIECE. Labops chelifer Slater, male, a mirid that inhabits wet tundra and is endemic to East Beringia. Length 4.25 mm. True bugs of the Yukon True Bugs (Heteroptera)
Abstract. So far, 216 species or subspecies of Heteroptera, belonging to 19 families, are recorded from the Yukon, about half of these reported here for the first time. This total represents 5.6 % of the North American heteropteran fauna, and 17.1 % of the Canadian true bug fauna. It is composed of...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.4316 http://www.biology.ualberta.ca/bsc/pdf/scudder2.pdf |
| Summary: | Abstract. So far, 216 species or subspecies of Heteroptera, belonging to 19 families, are recorded from the Yukon, about half of these reported here for the first time. This total represents 5.6 % of the North American heteropteran fauna, and 17.1 % of the Canadian true bug fauna. It is composed of 4 (1.8%) semiaquatic, 12 (5.6%) aquatic, and 200 (92.6%) terrestrial species. Thirteen different faunistic elements are recognized within the true bugs in the Yukon. Species that occur in both Palaearctic and Nearctic regions are a significant component, with 61 species (28.2%) involving 5 faunistic elements: Circumboreal or near Circumboreal with 44 species (20.4%), Palaearctic-East Beringian with 7 species (3.2%), Palaearctic-Western Nearctic with 7 species (3.2%), Palaearctic-Cordilleran with 2 species (0.9%) and East-West Beringian with just one species (0.5%). The 141 exclusively Nearctic species constitute 65.3 % of the fauna. Eight faunistic elements are recognized within this component: Nearctic including Beringian with 68 species (31.5%), Nearctic excluding Beringia with 22 species (10.2%), Western Nearctic including Beringian with 13 species (6.0%), Western Nearctic excluding Beringia with 11 species (5.1%), Cordilleran including Beringian with 12 species (5.6%), Cordilleran excluding Beringia with 11 species (5.1%), Subarctic with 2 species (0.9%) and East Beringian endemic with 2 species (0.9%). Five species, constituting 2.3 % of the Yukon fauna, are considered to belong to a Nearctic-Neotropical element, with one species constituting a possible Asian element. |
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