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

Morphological and Cytogenetical Studies On the Female and Male Reproductive Organs of Eriopis Connexa Mulsant (Coleoptera, Polyphaga, Coccinellidae)

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 Netherlands Journal of Zoology
For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

The present paper reports information on the anatomy, histology and cytogenetics of sex organs of sexually mature specimens of Eriopis connexa. The male reproductive organs are composed of a pair of testes, two vas deferens and a single ejaculatory duct. In 21% of males examined the testis were fused. In both cases each testes is formed by a large number of drop-like follicles, which contained spermatocytes at different developmental stages. In females each ovary is formed by four bunchy ovarioles, joined by short terminal filaments at their upper portions. There is a single spermatheca and the ovarioles are of the meroistic telotrophic type. Females presented a diploid number of 2n = 18 + XX. Chromosome pairs 2 and 3 presented secondary constrictions located on the short arms, and fluorochrome staining showed only one pair CMA3+ (one block in each chromosome). NOR-banding showed only one pair Ag-positive. In male meiosis the chromosome number was n = 9 + Xyp. In the prophase I the NOR-banding showed one pair of autosomes with active regions and the sexual vesicle stained strongly with silver nitrate suggesting association of these chromosomes.

Affiliations: 1: Departamento de Biologia Geral, Universidade Federal de Vicosa; 2: Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa — Minas Gerais — Brasil, CEP: 36571-000


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:
    Netherlands Journal of Zoology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation