Rabdophaga strobilina (Bremi, 1847)
Salix purpurea, Belgium, prov. Hainaut, Virelles © Sébastien Carbonnelle
old, opened gall with three cocoons
This species is closely related to Rabdophaga rosaria, and often confused and even synonymised with that species. In fact, it is an inquiline of rosaria. Several red larvae, each in an own cavity, sit around the central gall chamber with the rosaria larva. The presence of both species in a gall tends to increase its size.
Béguinot (2001c, 2002e, 2007b), Dauphin & Aniotsbehere (1997a), Flügel (2016a), Gagné (2010a), Haarder, Bruun, Harris & Skuhravá (2016a), Pârvu (2005a), Redfern & Shirley (2011a), Roskam (2011a), Roskam & Carbonnelle (2015a), Skuhravá & Skuhravý (1988a, 1997a, 1999b, 2005b), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Stelter (1989b).