Acraspis gemula (sexgen)

Family: Cynipidae | Genus: Acraspis
Detachable: detachable
Color: tan
Texture: hairless
Shape: globular
Season: Spring
Alignment: erect
Walls: thin
Location: bud
Cells: monothalamous
Possible Range:i
Common Name(s):
Cynips fulvicollis var fulvicollis form pallipes
Diplolepis gemula
Diplolepis pallipes
Dryophanta pallipes
Philonix pallipes
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  • image of Acraspis gemula (sexgen)

New Cynipidae (1881)

Cynips gemula, n. sp.

This species is a recent discovery of mine, having escaped detection on account of its early appearance and minute size. The gall is found in the centre of both the flowering and leaf buds of Q prinoides. It is fully developed when the sterile flowers of this species of oak are in bloom. Only one gall is found in a single bud. It is exactly like an ordinary acorn in shape, having a truncate base and a cone-like extremity with a sharp point at the apex. It is a dull blackish color, and only .1 of an inch in length and 0.05 in diameter. It contains but one larva. When the gall happens to be in a leaf bud it is often found at the summit of a young branch one or two inches long, so rapid is the growth of the tree at this season. In the flower buds it is often nearly hidden in the surrounding bud scales. The insects appear in both sexes about the middle of May.

- HF Bassett: (1881) New Cynipidae (1881)©


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