Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Karyosystematics and morphology of Northern Chironomus (Diptera: Chironomidae): Freshwater species with larvae of the salinarius-type

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Insect Systematics & Evolution

C. hyperboreus Staeg., C. islandicus K., C. tardus Butler, C. cucini Webb, C. major n.sp. and C. neocorax n.sp. were found to belong to the thummi-complex (chromosome arm combination AB, CD, EF, G). They can be characterized by primitive banding patterns, heterochromatinized centromeres, scarcity of inversion polymorphism, poor chromosome structures and frequently incomplete pairing of the homologous chromosomes. The six species have identical or very similar chromosome arms A, E and F, whereas the banding patterns of arms B, C, D and G as well as the position of nucleolar organizers and Balbiani rings allow clear distinction of the species. Few morphological differences could be detected between larvae and between adults. Freshwater species with salinarius-type larvae are found predominantly in northern areas. Their position in the phylogenetic system of the genus is discussed as well as the possible adaptive significance of the presence or absence of tubuli on the larval abdomen.

Affiliations: 1: W. F. Wülker, Biol. Inst. I (Zoology) of the University, Albertstr. 21a, D 7800 Freiburg, W.-Germany; 2: M. G. Butler, Zool. Dept., North Dakota State University, Fargo, N. D. 58105 USA


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Insect Systematics & Evolution — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation