lateral to the eyes. Antennæ rufous brown to piceous, first segment darker, and darker apically; hairy; 14-jointed (or incompletely 15 jointed). Thorax: Black, piceous to black on the sides; very finely coriaceous, closely punctate and densely hairy with long hairs; parapsidal grooves distinct, punctate, slightly convergent at the scutellum, slightly divergent at the pronotum; median groove distinct and smooth for a short distance from the scutellum, obsolete forward; anterior parallel lines raised, smooth, extending about half-way to the scutellum; lateral lines somewhat smooth, extending from the scutellum about half the mesonotal length; scutellum black, longer than wide, deeply rugose, slightly depressed on the median line, with two large, shining, smooth or slightly rugose, laterally-spreading foveae at the base separated by a fine ridge; mesopleuram piceous or black, finely coriaceous and smooth, almost naked of hairs. Abdomen: Rufous to piceous, brightest at the very base and apically especially ventrally; practically smooth, the posterior segments, the ventral spine and valves with long hairs; only a few, scattering, long hairs at the base of the second segment laterally; abdomen longer than wide, the second segment covering about twothirds the total area, and rounded ventrally, the hypopygium projecting slightly posteriorly. Legs; Yellow-brown to rufous, the coxæ and sometimes trochanters black; hairy, hairs densest and longest on the tarsi and on the hind tibæ; claws prominently toothed. Wings: Hyaline, tinged with yellowish, covered with fine, brown hairs, edges ciliate; veins brown, heavy, cross-veins heaviest; longer than whole length of body, extending half beyond abdomen; areolet large, sometimes spectacularly so, extending sometimes one-third the way to the cubitus; cubitus not reaching basalis, the tip curved distinctly downward toward a point well below the mid-point of the basalis; radial cell apparently closed, but whether by the extension of the subcosta or by another thickening of the margin is not entirely evident; first abscissa of the radius arcuate-angulate, heavily but limitedly infuscated, without much of a projecting point. Length: 3.7-4.7 mm.
- Galls (Pl. XXIV, Figs. 11, 12).-Elongate stem swellings. Polythalamous. Large, elongate, oval to spindle-shaped, averaging 2.5 cm. wide by 5.0 cm. long; large specimens of scarcely greater diameter will reach 11.0 cm. in length; covered with bark of natural color. Internally hard and woody, only the peripheral tissue being less compact than the normal stem wood; larval cells toward the center of the gall, oval, 3. by 5. mm., tissue almost not at all distinct from rest of wood; exit holes upon aging show a distinct, smoother area on the bark. On smaller stems of Quercus chrysolepis.
- Range.—California: San Jacinto Mountains, San Bernardino, Upland, Pasadena, Placerville, Auburn.
- Types.—Seventy-six females and 19 galls, labelled Pasadena, California; February 7, 1920; Kinsey collector. Holotype female, paratype females, and galls in The American Museum of Natural History; paratype females and galls at Leland
Stanford University, the U. S. National Museum, and in the author's collection.
The galls of this species have been mistaken for those of 'Andricus suttoni (Bassett) which occurs on Quercus agrifolia; and it is likely that all records of suttoni occurring on Quercus chrysolepis apply actually to spectabilis. Though the galls of the two cynipids closely resemble each other, the insects are not similar, exhibiting what will be interpreted as generic differences when Andricus is subdivided. In several respects, such as the median depression of the scutellum, this species shows rel
