Andricus legitimus Wiebes-Rijks, 1980
on Quercus
Quercus robur, Loenen (Ge), 19.ix.2019 © Arnold Grosscurt: healthy and galled acorn
section through the galled acorn
another specimen
Quercus robur, Dronten, 27.ix.2019 © Arnold Grosscurt
Quercus robur, Biddinghuizen, Spijk- en Bremerbergbos © Hans Jonkman
Quercus robur Dronten, Roggebotbos © Hans Jonkman. From the original description of the species appears a strong variation in the degree of suppression of the development of the acorn. Possibly this is an extreme example.
gall
Unilocular, ovoid gall within an acorn the is abortive, and usually remains completed enclosed by the cupula. Multilocular galls have fallen victim to an inquiline.
hostplants
Fagaceae, monophagous
Quercus petraea, robur.
notes
only the agamous generation is known.
inquilines
parasitoids, predators
Eupelmus annulatus; Eurytoma brunniventris; Mesopolobus tibialis.
references
Bellmann (2012a), Dauphin & Aniotsbehere (1997a), Gómez, Hernández Nieves, Garrido Torres, ao (2006a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Romain (2009a), Meika (2006a), Melika, Csóka & Pujade-Villar (2000a), Mutun & Dinç (2014a), Nieves-Aldrey (1983a, 2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Redfern & Shirley (2011a), Roskam (2009a), Wiebes-Rijks (1980a), Williams (2010a).