Andricus mukaigawae
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| Andricus mukaigawae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Cynipidae |
| Genus: | Andricus |
| Species: | A. mukaigawae |
| Binomial name | |
| Andricus mukaigawae (Mukaigawa, 1913)[1] | |
Andricus mukaigawae is a species of gall wasp native to southeastern Asia. It creates galls on the buds and leaves of oak trees. The galls are sometimes used by other gall wasps unable to create galls of their own, with both species sharing the gall.
Andricus mukaigawae is part of a species complex with several components. Some populations are classified as A. mukaigawae which is bivoltine (having two generations per year) cyclically parthenogenetic, with a karyotype of (2n = 12), producing entirely female offspring; these wasps form burr-shaped galls on Quercus aliena, Quercus mongolica, Quercus serrata,[2] and Quercus fabrei.[3] Other populations are classified as Andricus kashiwaphilus (2n = 10), also bivoltine and cyclically parthenogenetic, but producing flower-shaped galls on Quercus dentata, again producing entirely female offspring. There are also univoltine populations with one generation per year with thelytokous parthenogenesis in which females are produced from unfertilized eggs; these have historically been classified as Andricus targionii, but some of them form burr-shaped galls on Q. aliena while others form flower-shaped galls on Q. dentata, so A. targionii would appear to be polyphyletic.[2]