The winged Antarctic midge Parochlus steinenii (Gerke) (Diptera: Chironomidae) in the South Shetland Islands

Edwards, Marion; Usher, Michael B.. 1985 The winged Antarctic midge Parochlus steinenii (Gerke) (Diptera: Chironomidae) in the South Shetland Islands. Biological Journal of the Linnean Society, 26 (1). 83-93. 10.1111/j.1095-8312.1985.tb01553.x

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Abstract/Summary

The morphological variation of adult Parochlus steinenii (Gerke) is described from measurements of two populations from the South Shetland Islands. Morphologically, the population from Ardley Island is significantly larger than the population from Livingston Island, and in both populations variation in forefemur length is generally greater than variation in either antennal or wing length. The final instar larva of P. steinenii is described in detail. A consideration of the species' distribution in three geographically isolated areas, as well as of the greater morphological variation in polar as opposed to temperate populations, indicates that a flexible life history strategy in the larval stage may be important for survival in extreme environments.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1111/j.1095-8312.1985.tb01553.x
ISSN:	00244066
Additional Keywords:	Antarctic Chironomidae, Diptera, dipterous larva, morphological variation
NORA Subject Terms:	Biology and Microbiology
Date made live:	15 May 2019 08:13 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/523345

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