Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar

TaxonomyBrowseInfoImagesLinksBooksData
Photo#1769751
Braconidae sp ?

Braconidae sp ?
Forbes, St. Louis County, Minnesota, USA
August 18, 2019
This is a series of several photos of a rearing experiment. These summarize two trials of the experiments. The apparent Braconid wasps were parasitoids of Vanessa cardui. The wasps in this photo eclosed from pupas in a cocoon-like structure apparently made by the caterpillar as its behavior was modified by the parasitoids. (47.22588, -92.60108). Two trials yielded 25 and 50 eclosed wasps.

Images of this individual: tag all
Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ? Braconidae sp ?

Moved
Moved from ID Request.

Microgastrinae…
Possibly some examples of a Cotesia species such as C. vanessae, which is associated with the host you mention. We would need closeup views of one of these wasps with dorsal and lateral views of the body, and also one of a complete forewing, to be able to take these to genus level or beyond.

See reference here.

 
Microgastrinae wasps
Ross, thank you for your interest! I made another attempt at photographing the wasps. I still had them in isopropyl. Not sure if these help, but it is worth a try. Thanks, Jerry

 
Comment by Dr. Fernandez...
"The specimens look to be a Cotesia. My only reserve is that I cannot see clearly the first two segments of the metasoma (=abdomen). There are a couple of your images that show those two tergites in dorsal view, but the glare does not allow me to see how those two tergites are (their shape). Thus, there is a possibility that your specimens are Glyptapanteles and not Cotesia. Do you still have the specimens with you? Could you photograph them again (just for a dorsal view of the abdomen)?"

 
Braconid Photos
I try again! Sorry, I'm an amateur and lack proper equipment to photograph 3mm bugs. I added three additional images. I tried removing appendages for one. I hope this works. I must say that I'm pleased with the level of interest in these parasitoids.

 
re: Photos…
Dr. Fernandez was unable to draw any conclusions about a possible genus after reviewing the additional images you provided; however, he did mention that he would be happy to take a look at your wasps if you would like to send them to him. He would probably need a female specimen to confirm an ID, but I think it's quite likely that at least one, if not the majority of your group, is female.

He can be reached at the address below, and I have added his email addresses and phone number as well, should you have any questions.

José L. Fernández-Triana, Ph.D.
Research Scientist, Agriculture and Agri-Food Canada
Canadian National Collection of Insects (CNC)
960 Carling Avenue, Ottawa, Ontario, K1A 0C6, CANADA
Phone: 613-759-1034. Email: jose.fernandez@canada.ca
Alternative email : cnc.braconidae@gmail.com

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.