Plant Parasites of Europe

leafminers, galls and fungi

Asterodiaspis variolosa

Asterodiaspis variolosa (Ratzeburg, 1870)

golden pit scale

on Quercus

Asterodiaspis variolosa: scales on Quercus kelloggii

Quercus kelloggii, USA, California, Ross © United States National Collection of Scale Insects Photographs Archive, USDA Agricultural Research Service,


Scales on the branches. Around each individual scale a low ride develops; heavily infested branches become knobby and malformed; also bark cracks may develop. Mainly found at the tip of the branches.


Fagaceae, monophagous

Quercus “aegilops”, cerris, coccifera, frainetto, ilex, lusitanica, palustris, petraea, pubescens, robur, rubra, suber.


Asterolecanium variolosum.


only a microscopical examination allows separation from A. minor and A. quercicola; all three species may occur on the same tree.


Béguinot (2000b), Buhr (1965a), Carnero Hernandez & Perez Guerra (1986a), Ćwierzyk & Dziedzicka (1987a), Dauphin & Aniotsbehere (1997a), Dziedzicka (1988a), Gertsson (2016a), Gill (1993a), Gomez-Menor Ortega (1960a), Hellrigl (2004a), Jansen (1999b, 2013a), Koops (2013a), Kozár, Guignard, Bachmann ao (1994a), Kozár & Ostafichuk (1987a), Malumphy (2009a, 2010a), Malumphy & Badmin (2012a), Malumphy & Ostrauskas (2009a), Malumphy, Ostrauskas & Pye (2008a, 2010a), Malumphy & Kahrer (2011a), Masten Milek, Seljak, Šimala ao (2016a), O’Connor, Gertsson & Malumphy (2013a), Redfern & Shirley (2011a), Roskam (2009a), Seljak (2010a), ScaleNet, Spodek, Ben-Dov & Mendel (2013a), Trencheva, Gounari, Trenchev & Kapaxidi (2009a), Trencheva, Trenchev, Tomov, ao (2012a), Williams (2010a).

Last modified 15.v.2023