Diastrophus turgidus

Diastrophus radicum

Diastrophus turdigus, N. Sp.

Looking over my collection of galls, I find a gall from the stalk of Rubus strigosus and several gall insects reared from the same. The gall is an inch long, and three-fourths of an inch thick — an abrupt swelling involving the whole circumference of the stalk. Quite a large number of insects seem to have escaped from it, though many of them were parasites, 1 have only five specimens of the true gall-fly, and these are all females. 

Diastrophus radicum, N. Sp.

Galls. On the roots of Rubus villosus [flagellaris], of very irregular shape, and varying in size from those of the shape and size of a pea to those two inches or more in length, and nearly an inch in diameter, and containing few or many larvae according to size. The galls are occasionally found on the part of the stalks of the blackberry which is below the surface. 

Galls found on plants of the genus Rubus