20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



deep reddish or dark brown; punctation dense, deep but not very- 

 coarse; pubescence fine and brownish, not concealing surface below. 



Head with interocular space over half width of head, densely punc- 

 tate, punctures on lower front coarser, median line ending in a depres- 

 sion in middle of front; finer dark hairs on occiput becoming coarser 

 on front and sometimes paler but not white. Antennae extending 

 well below humeri, slender, seventh joint long, outer joints a bit 

 wider, reddish brown to dark brown. Prothorax somewhat wider 

 than long with somewhat curved sides, convex, densely, deeply but 

 not very coarsely punctate with fine brown pubescence, not concealing 

 surface in middle, where the hairs become finer and darker and incon- 

 spicuous. Scutellum with a few fine short hairs. Elytra with 

 prominent humeri, an intrahumeral sulcus and a transverse depression 

 below basal callosity, depressed below scutellum, punctation not 

 very coarse or dense but with horizontal ridgings. Body beneath 

 finely punctate and covered with fine yellowish pubescence, legs 

 tending to be deep reddish brown, often darker. Length 6-8 mm.; 

 width 3-4.4 mm. 



Type: Male, in California Academy of Sciences. 



Type-locality: Cazadero, Sonoma County, Calif., Apr. 12, 1918, 

 E. P. Van Duzee, on foliage of Sequoia sempervirens. 



Other localities: California: Sonoma Co.: Guerneville, May 30, 

 1908, Van Dyke; Sonoma Co., E. S. Ross. Mendocino Co.: Pygmy 

 Forest, May 7, 1936, Van Dyke; Compteche, May 7, 1936, Van Dyke. 

 Humboldt Co.: Green Point, June 4, 5, 1916, F. E. Blaisdell; Weott, 

 June 4, 1936, Van Dyke; Humboldt Co., May 20, 1911, F. W. Nunen- 

 macher. Santa Cruz Co.: Santa Cruz Mts., Koebele. San Mateo 

 Co.: Portola St. Park, May 7, 1950, R. E. Leech. 



Remarks: Primarily this species is the one that is found in the 

 coastal counties around and north of San Francisco on Sequoia 

 sempervirens, the coastal big tree. It is a coppery-colored species 

 to which Blaisdell first gave the manuscript name "cuprascens ,> 

 (specimens from Casadera in the California Academy of Sciences 

 still bear a label with this name), but later Blaisdell named it after 

 its food plant and called it G. sequoiae. The pubescence is not very 

 conspicuous because it is usually brownish, like the beetle, sometimes 

 paler brown or yellowish brown, but never really white, and it is 

 silky and not at all coarse. On the middle part of the prothorax 

 it appears nearly hairless, but the hairs here are even finer and sparser 

 and usually darker. The aedeagus does not have so rounded a tip 

 as in the Sierra species that have been up to now confused with the 

 coastal G. sequoiae. 



