Contarinia pyrivora (Riley, 1886)
pear midge
on Pyrus

Pyrus spec., Hungary, Budapest © László Érsek

opened gall with larvae
Pyrus communis, Dronten © Arnold Grosscurt
same galled fruit, opened
galled fruits later turn black
opened
a small fraction of the larvae remains in the gall and forms a puparium there, without making a cocoon
Pyrus communis; België © Patrick Heyerick, Boomgaard Langeveld, Kruishoutem: aborted pears
gall
Eggs are deposited on the unopened flowers. The emerging larvae infect a developing fruit; a single fruit may contain up to 100 larvae. Infested fruits turn black inside and out, and drop when they are about 2 cm. The larvae are yellowish white, and can jump. Univoltine; hibernation as a puparium, generally in the ground.
host plants
Rosaceae, monophagous
Pyrus communis, salicifolia, spinosa.
larva
spatula (from Kieffer, 1901a)
notes
Important pest in fruit crops.
inquilines
see Clinodiplosis contariniperda (del Guercio, 1918).
references
Barnes (1948b), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Houard (1908a), Kieffer (1901a), Lambinon, Schneider & Feitz (2001b), Mirumian (2011a), Redfern & Shirley (2011a), Roques, Cleary, Matsiakh & Eschem (2017a), Roskam (2009a), Roskam & Carbonnelle (2015a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1994a, 1997a,b, 1999a, 2002a, 2006a, 2008a, 2010a, 2011a, 2012a, 2021a: 204), Skuhravá, Skuhravý & Carbonnelle (2017a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Hellrigl (2001a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Kettani (2017a), Skuhravá, Skuhravý & Massa (2007a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2014a).