Disholcaspis pruniformis

Quercus breviloba, laceyi
Stem galls, detachable
Single or cluster of 2 to 5, soft and spongy when fresh, 22-30 mm in dia.

Quercus stellata
Stem galls, detachable
Ovoid, 28 by 21 mm, yellow to reddish brown, soft and spongy when fresh.

[Photo caption]
On Q breviloba. Also on stellata, laceyi. Contained pupae Oct 30 and Nov 13; adults Dec 10.

Disholcaspis pruniformis

The galls of this species were collected on Q. stellata and laceyi at Austin, Boerne, and Kerrville, Tex. Galls at Austin contained pupae on October 30, November 13 and 21, 1917. Adults were cut out of the galls on December 10.

Disholcaspis pruniformis, new species

GALLS.-About the size and shape of a small plum (Figs. 44 and 45), yellow to reddish brown. Monothalamous. Somewhat elongate, broadest nearer the apex, more pointed toward the base, about 2.8 X 2.1 cm., light yellowish brown, broadly tinged with reddish brown, most likely entirely smooth while alive, but the thin skin becoming slightly rough by shrivelling on drying. Internally filled with a compact, not solid mass of yellowish, crystalline, sawdust-like material, only slightly approaching a woody fiber structure around the larval cell which is central in the gall, thick-shelled, and closely imbedded (at least in the dried gall) in the surrounding tissue. Attached on the side of the young twig, at the one-year node, on"post-oak."

RANGE.-Texas

The galls, though bearing separate numbers, had been placed together with galls of Amphibolips gainesi, and the galls of the species are superficially similar, but the gall of D pruniformis differs in not being perfectly round and in being colored yellowish and reddish brown.