Contarinia asclepiadis (Giraud, 1863)
on Vincetoxicum

Vincetoxicum hirundinaria, Belgium, prov. Namur, Han-sur-Lesse © Jean-Yves Baugnée

another gall

Vincetoxicum hirundinaria, Belgium, prov. Namur, Viroinval © Stéphane Claerebout

Vincetoxicum hirundinaria, Belgium, prov Namur, Parc naturelle de Furfooz © Carina Van Steenwinkel: the fruit is hardly disfigured

the larva in front is about to jump

the damage to the inside of the wall of the pod
host plants
Apocynaceae, monophagous
Vincetoxicum hirundinaria.
note
The larvae are white and can jump. Univoltine. While the larvae of Euphranta connexa feed upon the seeds, live the larvae of C. asclepiadis on the wall of the pod (Solbreck 2000a; Widenfalk ao, 2002a).
references
Barnes (1948a), Buhr (1964b), Bruun, Jørgensen & Skuhravá (2012a), Dauphin & Aniotsbehere (1997a), Docters van Leeuwen (1936a), Houard (1909a), Roskam (2009a), Roskam & Carbonnelle (2015a), Skuhravá & Skuhravý (1997a, 2021a: 302), Skuhravá, Skuhravý & Meyer (2014a), Solbreck (2000a), Widenfalk, Gyllenstrand, Sylvén & Solbreck (2002a).