Parasitoid key

Identification of parasitoids on aphids of Poaceae

Recognizing principal genera of parasitoids of cultivated Poaceae

The proposed identification key is based on visual observation of:

  • forewing venation based on the complete venation of a reference wing   
  • form of the ovipositor  (V3)
  • number of tubercles on tergite 1  (T1)
Aphidiinae : nervation complète de l'aile



All cells 1, 2, 3,4, 5,closed up
Toxares deltiger : aile droite

Ovipositor triangular Toxares (deltiger)

Toxares deltiger : ovipositeur

Ovipositor tapering Ephedrus (plagiator)

Ephedrus plagiator : détail ovipositeur
Cells 2, 3 and 5 joined together; cell 1 open
Aphidius ervi : aile

Aphidius (ervi, avenae, rhopalosiphi, uzbekistanicus, matricariae, colemani)

Veins 3-SR+SR1, r-m and only one part of 3-M (T-shaped) present
Lysiphlebus fabarum : aile droite

Lysiphlebus (fabarum, testaceipes)

Veins 1-SR+M, m-cu and 3M present, sometimes m-cu effaced, or 1-SR+M partly effaced
Adialytus salicaphis : aile droite

Praon (gallicum, volucre, abjectum, necans)

Only vein 3-SR present, but short
Adialytus salicaphis : aile droite

Ovipositor tip pointed Adialytus (ambigus)

Adialytus ambigus : ovipositeur

Ovipositor tip square Diaeretiella (rapae

Diaeretiella rapae : ovipositeur

Ovipositor axe-shaped Monoctonus (caricis, cerasi)

Monoctonus caricis : ovipositeur
Only vein 3-SR present, long
Binodoxys angelicae : aile

Ovipositor tweezer-shaped

Binodoxys angelicae : ovipositeur

T1 view from above with 4 tubercles Binodoxys (angelicae)

Binodoxys angelicae : détail T1 (tergite)

T1 view from above with 2 tubercles Trioxys (auctus)

Trioxys auctus : détail T1 (tergite)


Aphelinus (abdominalis, asychis, flavipes, varipes, chaonia)

Aphelinus sp : aile
Aphelinus sp : habitus

Mummies black and elongate

Aphelinus abdominalis : momies noires dans une colonie d'Uroleucon spp


In this folder

Identification based on morphological criteria, click on the name to access identification file
Identification based on morphological criteria, click on the name to access identification file

Modification date: 14 June 2024 | Publication date: 12 September 2013 | By: Evelyne Turpeau, Maurice Hullé, Bernard Chaubet