Striatoandricus furnessulus (Weld, 1944), comb. nov.

Andricus furnessulus Weld, 1944: 12, female, gall

Galls (Fig. 243). A woolly mass partly or entirely encircling small twigs, measuring up to 30 by 25 mm, pure
white or rosy when young, consisting of a large number of separate biconical cells attached at a common point, each covered with long hairs, about 7 by 5 mm; shorter and broader than in S. furnessae (Weld 1944).

Biology. Only an asexual generation is known, inducing galls on Q. oblongifolia.

Distribution. USA: Arizona

Andricus furnessulus

Quercus arizonica, oblongifolia
Stem galls
Detachable
Fig 61.

Andricus furnessulus, new species

Gall (pl. 2, fig. 10). — A woolly mass partly or entirely encircling small twigs, measuring up to 30 by 25 mm., pure white or rosy when young, consisting of a large number of separate biconical cells attached at a common point, each covered with long hairs. These measure about 7 by 5 mm., shorter and broader than in furnessae.

Host. — Quercus oblongifolia.

Habitat. — The type is selected from a series from a gall sent from Nogales, Ariz., by Mrs. N. W. Capron on February 4, 1935. Paratypes also are from a gall sent by Ed Jacot from Bear Canyon in the Huachuca Mountains, Ariz., March 30, 1919, the adults emerging May 10-28. The writer collected galls at Nogales and Patagonia, Ariz., and in the Santa Rita Mountains.

Andricus sp. A
Woolly-stem-gall wasp
[Page 170]

Hosts: Quercus arizonica, oblongifolia

Bright crimson or pure white, long hairs conceal the individual galls that make up the polythalamous cluster.

[Russo distinguishes this gall from Andricus furnessulus, tenuicornis, and tecturnarum but gives no indication of how it differs from those species]