Callirhytis nigrae (sexgen)

In Progress

Family: Cynipidae | Subfamily: Cynipinae | Tribe: Cynipini | Genus: Callirhytis

Hosts: Quercus imbricaria / Quercus marilandica

Detachable: Integral

Color: yellow, green

Texture: hairless, succulent

Abundance:

Shape:

Season: Spring, Summer

Alignment:

Walls:

Location: lower leaf, leaf midrib

Form: abrupt swelling

Cells: polythalamous

Possible Range:

Not an occurrence map: this shows where this gall's hosts grow. In most cases the gall has not been documented throughout this area.

Loading map...

1 / 2

Cynipid galls of the eastern United States - LH Weld (1959)

License: Public Domain / CC0

On the Cynipidae of the North American Oaks and their Galls - Baron Osten Sacken (1861)

License: Public Domain / CC0

Callirhytis nigrae (sexgen) sexgen: The sexual generation (AKA bisexual generation or sexgen) of an oak gall wasp (cynipini) species consists of both male and female wasps, which mate before the females lay eggs which will mature to form the all-female agamic generation. View in glossary →