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

Life Cycle of Didilia Ooglypta (Nematoda: Tetradonematidae), a Parasite of Phlebotomine Sandflies of Afghanistan

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 Nematologica
For more content, see Nematology.

Didilia ooglypta is a parasitic nematode of Phlebotomus papatasi and P. sergenti (Diptera: Psychodidae) in Afghanistan. The vulva of the nematode is located at the front tip of the body close to the mouth. The only free-living stage is the egg and all other stages live in the body cavity of the host. First instar sandfly larvae become infected by ingesting nematode eggs; 2nd, 3rd and 4th instars are not susceptible. The infective juvenile worms hatch in the mid-gut of the sandfly larva and migrate through the gut wall into the haemocoel where they complete their development. After mating, female nematodes begin to develop quickly while the males shrink and die. Female nematodes are fully mature after 37 days of infection by the time the adult flies emerge from pupae, at which stage they bore a hole through the cuticle of the abdomen of the imago to expose the vulva and lay eggs. The eggs survive for two and a half years in humid larval frass, but almost all die within two weeks in water. The development of infected larvae is retarded and, compared to uninfected larvae, significantly fewer survive to the imago stage. Infection causes an inversion in the normal pattern of emergence of sandflies with more females than males emerging in the first three days. P. duboscqi, a sandfly closely related to P. papatasi, is susceptible to infection, but sandflies of the subgenus Larroussius do not fully support the development of the parasite.

Affiliations: 1: Department of Biology, Imperial College at Silwood Park, Ascot, Berks., SL5 7PY, UK


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:
    Nematologica — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation