''Andricus corruptrix'' is a species of
gall-forming wasp, in the genus ''
Andricus
''Andricus'' is a genus of oak gall wasps in the family Cynipidae.
Life cycle
As in all Hymenoptera, sex-determination in species of the genus ''Andricus'' is governed by haplodiploidy: males develop from unfertilized eggs and are haploid, ...
''. It is found in Europe.
Life cycle
Adults lay their eggs on the buds of various species of oak, including common oak (''
Quercus robur
''Quercus robur'', commonly known as common oak, pedunculate oak, European oak or English oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe west of the Caucasus. It is wid ...
''), sessile oak (''
Q. petraea''), downy oak (''
Q. pubescens''), Algerian oak (
Q. canariensis), chestnut oak (
Q. montana) and Turkey oak (''
Q. cerris'').
The galls of the asexual generation are up to 5 mm across, hard and woody and have one to five smooth rounded lobes. They first appear in late summer but do not mature until the following July when the adults insect emerge. Females lay their eggs on the buds of Turkey oak and the galls develop during late winter. This is the gall of the sexual generation which is pale green at first, thin-walled and as they mature, they become tinged with pink and later turn orange-brown. Mature sexual galls are about 2.5 mm long, egg-shaped with a pointed tip and can resemble the mature galls of ''
Andricus kollari
''Andricus kollari'', also known as the marble gall wasp, is a parthenogenetic species of wasp which causes the formation of marble galls on oak trees. Synonyms for the species include ''Cynips kollari'', ''Andricus quercusgemmae'', ''A. minor'', ...
''.
[
]
Distribution
The gall is found in Europe from Ireland to the Ukraine excluding Scandinavia
Scandinavia; Sámi languages: /. ( ) is a subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and Swe ...
and the Iberian Peninsula
The Iberian Peninsula (),
**
* Aragonese and Occitan: ''Peninsula Iberica''
**
**
* french: Péninsule Ibérique
* mwl, Península Eibérica
* eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defi ...
.
References
External links
Cynipidae
Gall-inducing insects
Hymenoptera of Europe
Insects described in 1870
Oak galls
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