The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
Author
Shachar, Einat
Author
Melika, George
Author
Inbar, Moshe
Author
Dorchin, Netta
text
Zootaxa
2018
2018-11-16
4521
4
451
498
journal article
27950
10.11646/zootaxa.4521.4.1
832ac35c-8871-4041-9321-ea7f2ae5eb41
1175-5326
2610021
A4FD6137-25B0-43D5-845B-B4FDF4E9F5D7
Andricus megatruncicolus
Melika, 2008
Host plants.
Israel
:
Q. boissieri
.
Iran
and
Turkey
:
Q. infectoria
.
Life history.
Known only from the bud galls of the asexual generation, which are pentagon-shaped,
5–15 mm
in diameter and single-chambered (
Fig. 21
). The galls are broadly attached to the branch and are composed of five flattened units that sheath a spherical mass. Old galls remain on the tree for several years.
Phenology.
Galls develop over the summer and mature in September, adults emerge in the following spring (
Tavakoli
et al
. 2008
).
Distribution.
Israel
: Very rare, found only twice in one location on Mt. Hermon at
1780 m
.a.s.l. Elsewhere:
Iran
and
Turkey
.
Comments.
The species epithet reflects the close similarity of the adults and galls of the asexual generation to those of
Andricus truncicolus
(Giraud)
, and the larger size of the gall. The extreme rarity of purely asexual lifecycles in oak gallwasps (
Stone
et al
. 2002
) suggests that
A. megatruncicolus
has a sexual generation which probably develops on oaks from section
Cerris
.