Cotesia marginiventris

{{Short description|Species of wasp}}

{{Speciesbox

| taxon = Cotesia marginiventris

| authority = Cresson 1865 {{cite web |title=Cotesia marginiventris (Cresson, 1865) |url=https://www.gbif.org/species/1257783 |website=www.gbif.org |access-date=14 July 2022 |language=en}}

| synonyms = Apanteles marginiventris{{cite web |last1=Stefanski |first1=Nicholas |title=Cotesia marginiventris |url=https://animaldiversity.org/accounts/Cotesia_marginiventris/ |website=Animal Diversity Web |access-date=14 July 2022 |language=en}}}}

Cotesia marginiventris is a species of parasitoid wasp that develops in Noctuidae caterpillars. It can be found in the Americas. The wasp finds caterpillar hosts to rear its young in by detecting the volatiles produced by the plants that the herbivorous caterpillars feed on. {{cite journal |last1=Harris |first1=Christina M. |last2=Ruberson |first2=John R. |last3=Meagher |first3=Robert |last4=Tumlinson |first4=James H. |title=Host Suitability Affects Odor Association in Cotesia marginiventris: Implications in Generalist Parasitoid Host-Finding |journal=Journal of Chemical Ecology |date=1 April 2012 |volume=38 |issue=4 |pages=340–347 |doi=10.1007/s10886-012-0095-9 |pmid=22438015 |bibcode=2012JCEco..38..340H |s2cid=254650043 |url=https://link.springer.com/article/10.1007/s10886-012-0095-9 |access-date=15 July 2022 |language=en |issn=1573-1561|url-access=subscription }}