Share this article    



Observations on the fine structure of the developing cuticle of a soil mite Oppia coloradensis (Acarina: Cryptostigmata)

Brody, A.R.

1970 - Volume: 12 Issue: 2 pages: 421-431


Acari Oppia coloradensis


Whole mites were fixed with glutaraldehyde and osmium and embedded in a mixed resin of Epon and Araldite. Sections were stained with uranyl acetate and lead citrate and viewed on a Zeiss transmission electron miscroscope. As new adult cuticle is produced beneath sclerotized, tritonymphal cuticle in the pre-ecdysial condition, numerous granules are secreted in layers by the hypodermis. These granules apparently coalesce Into microfibers which are arranged in a parabolic pattern. The fibers are then consolidated to form laminations as the cuticle matures. An ecdysial space is present between the pharate adult and the tritonymphal cuticle. An epicuticle is present which consists of several layers. The fine structure of the epicuticle reveals a cement layer, a lipid layer with wax blooms, a cuticulin layer, and a proteinaceous layer below. The cement layer appears to cover the wax blooms and probably is a distinct factor in the water balance mechanism of this mite

Please read and follow the instructions to post any comment or correction.

Article editorial history
Date published:

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License
1970 Brody, A.R.
 Download article

Download the citation
RIS with abstract 
(Zotero, Endnote, Reference Manager, ProCite, RefWorks, Mendeley)
RIS without abstract 
(Zotero, BibTeX)
(PubMed, Txt)
Article metrics
Number of distinct pdf views

Cited by: view citations with

Search via ReFindit