14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



oval, denser on sides and at base, elytra with depressed area near 

 scutellum and below basal callosities, punctures not very coarse and 

 becoming finer towards apex. 



Head coarsely and densely punctate throughout with closely 

 appressed white scalelike hairs that, on occiput, become slightly 

 browner; surface piceous, labrum usually brown. Antennae extending 

 below humeri, brown with fine white pubescence. Prothorax moder- 

 ately convex, depressed along base, shining piceous with coarse 

 elongate oval punctures becoming denser at base and on sides and 

 nearly concealed by the closely appressed white pubescence. Scu- 

 tellum densely punctate and densely covered with finer white hairs. 

 Elytra with a depressed white area below and about scutellum in 

 which horizontal rows of punctures form slight horizontal ridging 

 between, a transverse depression below with ridging, and a short 

 intrahumeral sulcus, punctation becoming finer and less dense towards 

 apex, pubescence consisting of scalelike hairs with alternate brown and 

 white coloring forming a vittate pattern. Body beneath entirely 

 covered with closely appressed white pubescence, near apex of tibiae 

 becoming fine, silky, and slightly brownish. Length 7-9.5 mm.; 

 width 3.3-5.3 mm. 



Type: Possibly in Horn collection in Philadelphia. 



Type-locality: California. 



Other localities: California: Inyo Co.: Independence, June 11, 

 1937, Van Dyke, June 12, K. L. Maehler, June 4, Fenyes; Big Pine, 

 Apr. 10, 1937, A. E. Michelbacker; Lone Pine, Apr. 6, 1934, R. P. 

 Allen; June 8, 1929, R. L. Usinger; Oct. 10, 1937, H. E. Michelbacker. 

 Krauss gives the locality Isabella, Kern County, which is not far 

 from the localities in Inyo County. 



Remarks: As Krauss noted, this species is very close to G. squamu- 

 lata Crotch, the only differences seeming to be in the vittate pattern of 

 the scales on the elytra. The difference in the width of the scales is 

 very slight, G. squamulata having possibly slightly shorter and broader 

 scales. The tooth on the claw is lower down than on G. squamiilata. 

 Unlike G. squamiilata, this beetle appears to be confined to a small 

 area in southern California in and near Inyo County. 



In the LeConte collection there are five specimens under this name, 

 none with a type label, and only one with a locality label, which reads 

 "Tex." In the general collection at the Museum of Comparative 

 Zoology there is one specimen labelled "alternatus Cr. Calif. Horn," 

 which is the same data that Crotch gave in his original description of 

 G. alternata. Possibly this is the type or at least a cotype. 



Mr. Hugh B. Leech has sent me this note from Dr. Van Dyke's 

 notebook: "Friday, June 11, 1937. Drove up to Independence 

 (Inyo Co., Cal.) and thence up Clark Flatroad to Sierras. Collected 



