USGS SIR 2008-5082 --- Jacobsen

A Key to the Pupal Exuviae of the Midges (Diptera: Chironomidae) of Everglades National Park, Florida

Richard E. Jacobsen

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CONTENTS
Abstract
Introduction
      Purpose and Scope
      Description of Study Area
      Acknowledgments
Collection, Preparation, and Identification of Pupal Exuviae
      Sampling Midge Pupal Exuviae
      Slide Preparation
      References for Identifying Pupal Exuviae
      Confirming an Identification
      Rearing Midges
Pupal Morphology
      Head
      Thorax
      Abdomen
Key to the Pupal Exuviae of the Midges
      Major Taxon Groups and Pseudochironomini
      Orthocladiinae
      Tanypodinae
      Tanytarsini
      Chironomini
References Cited
Appendix 1. Scientific Names, Authorities, Dates of Original Description, and Couplet Location in the Key for Genera and Species Mentioned in this Report
Appendix 2. Correspondence between Pupal Morphospecies Designations in this Report and the Larval Morphospecies Designations in Epler (2001)

Abstract

A key has been developed for identifying the pupal exuviae of 132 taxa of chironomid midges collected in Everglades National Park, as well as 18 additional species from freshwater habitats adjacent to the Park. Descriptions and illustrations are based upon voucher specimens from extensive collections of chironomid pupal exuviae for faunal surveys and biomonitoring research conducted in ENP and surrounding freshwater areas from 1998 to 2007. The key includes taxonomic comments for confirming identifications, as well as brief summaries of the distribution and ecology of each species in southern Florida waters. Information is also provided on the morphology of chironomid pupal exuviae, recommended references for identifying pupal exuviae, techniques for making slides, and methods to confirm proper identification.

Suggested Citation:

Jacobsen, R.E., 2008, A Key to the Pupal Exuviae of the Midges (Diptera: Chironomidae) of Everglades National Park, Florida: U.S. Geological Survey Scientific Investigations Report 2008-5082, 119 p.

For additional information, contact:

U.S. Geological Survey
Florida Integrated Science Center
3110 SW 9th Avenue
Ft. Lauderdale, FL 33315
954-377-5900

rjacob@usgs.gov

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