OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

The Knowledge Bank is scheduled for regular maintenance on Sunday, April 20th, 8:00 am to 12:00 pm EDT. During this time users will not be able to register, login, or submit content.

Ultrastructure of the Chorion of Echthistus cognatus (Loew, 1849) (Diptera, Asilidae)

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/25161

Show full item record

Files Size Format View
V104N4_93.pdf 85.50Kb PDF View/Open

Title: Ultrastructure of the Chorion of Echthistus cognatus (Loew, 1849) (Diptera, Asilidae)
Creators: Candan, Selami; Suludere, Zekiye; Kalender, Yusuf; Eryilmaz, Ozlem
Issue Date: 2004-09
Citation: The Ohio Journal of Science, v104, n4 (September, 2004), 93-96.
Abstract: The fine structure of the Echthistus cognatus (Loew 1849) chorion was studied using both transmission (TEM) and scanning electron microscopes (SEM). Females were collected in the field and kept under laboratory conditions. Eggs were individually deposited in cotton batting. They were a light yellow color and elongated in shape after the deposition, with an average length of 1.5 mm and an average width of 0.4 mm. Except for the micropylar region, ridges extend all over the surface of the chorion. Aeropyles with different size and shape were present between ridges. There is a single micropylar opening at one pole of the egg. In the thin section, chorion forms a single layer. Chorionic ridges and sunken area are seen in the section.
URI: http://hdl.handle.net/1811/25161
ISSN: 0030-0950
Rights: Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given.
Bookmark and Share