skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Editors contains: "Onstad, David"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; (, Annals of the Entomological Society of America)
    Onstad, David (Ed.)
    Abstract Ormia ochracea (Bigot 1889) is a phonotactic parasitoid fly that targets a variety of field cricket species as hosts for their developing young. Female flies locate their hosts by tracking a male cricket’s courtship song. Viviparous larvae are then deposited on or near the host which they then pierce and penetrate, completing larval development within the cricket’s abdomen. Here, we describe Ormia male and female reproductive tracts exposed through micro-surgery and imaged with a variety of microscopic techniques. We also describe for the first time, both embryonic and early larval development that takes place within the female flies’ “uterus.” Special note is made of the phenomenon of intra-uterine embryonic growth, and prospects for accessing gametes or germ-cells for molecular engineering are discussed. 
    more » « less
    Free, publicly-accessible full text available July 10, 2026