Amphibolips quercusjuglans (agamic)

Family: Cynipidae | Genus: Amphibolips
Detachable: detachable
Color: brown, red, white, purple
Texture: hairless, mottled, spotted
Abundance: abundant
Shape: sphere
Season: Fall, Summer
Related:
Alignment:
Walls: thick
Location: fruit
Form: plum
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy:
Pending...
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image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)
image of Amphibolips quercusjuglans (agamic)

Additions and corrections to the paper entitled "On the Cynipidae of the North American Oaks and their Galls"

Cynips quercus juglans n. sp. [gall only]

QUERCUS ALBA. White Oak? Large, round gall of a hard corky substance, growing on the branches; a round, hollow space in the center. Diameter 0.75-0.95.

I found a couple of these galls in winter, on the ground, under an oak, the species of which I was unable to ascertain. Afterwards, Mr. Hitz, of the Maryland Agricultural College, communicated to me a number of these galls, with the statement that they grow on the branches of the white oak. All these galls, as well as those found by myself, were somewhat shrunken and wrinkled on the surface, probably from the effects of dryness. They are easily distinguished from the galls of C q. globulus Fitch by their large size and their much harder substance. It requires some effort to cut them open, whereas, the dry galls of C. q. globulus can be easily cracked. For the same reason the kernel of the latter gall can be more easily detached from the surrounding corky substance, than that of the other gall. The greater part of the galls which I cut open contained a cluster of small evidently parasitical larvae. In two or three, however, I found a single Cynipideous larva. I did not succeed in rearing it, but obtained several kinds of parasites.

- Baron Osten Sacken: (1862) Additions and corrections to the paper entitled "On the Cynipidae of the North American Oaks and their Galls"©

Reference: https://www.biodiversitylibrary.org/item/22852#page/297/mode/1up


Further Information:
Pending...

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