22 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



the fine brownish hairs that cover it. Glyptoscelis juniperi in its 

 typical form often has an aeneous green or even rosy lustre, and the 

 pubescence is not brown but white or straw colored. Only occa- 

 sionally are there specimens with darker brown hairs intermingled on 

 the elytra. On the occiput of the head the hairs are fine and dark, 

 so that the top of the head appears quite dark. The aedeagus, too, 

 differs from that of G. sequoiae, in being broadly rounded at the tip. 

 There is a series of specimens from Bijou, Lake Tahoe, and another 

 series from Facht, Lassen County, and scattered specimens from 

 other localities in Eldorado, Lassen, and Modoc Counties that are 

 much darker in appearance, in fact, almost black, with little evidence 

 of aeneous or bronzy lustre, and the pubescence on these is darker 

 brown with scattered white hairs. The aedeagi appear to be no 

 different from those of typical G. juniperi. One of these specimens 

 was collected on Pinus murrayana. Whether these darker speci- 

 mens represent a different subspecies or even another species is not 

 clear. The aedeagus gives no clue of difference. These darker 

 specimens are easily confused with a more northern species, G. septen- 

 trionalis, which also has dark elytral pubescence, but in G. septen- 

 trionalis the elytral hairs are denser and often less appressed, and the 

 beetles have a bronzy lustre and the aedeagus is less rounded at the 

 tip. In general it is a smaller, browner appearing species. 



Glyptoscelis juniperi zanthocoma, new subspecies 



Figure 15 



Between 6 and 8 mm. in length, oblong oval, shining with a coppery 

 or aeneous lustre with reddish brown antennae and legs and with 

 closely appressed dense yellowish brown, fine pubescence, pubescence 

 on pronotum being finer and silky, deeply and not coarsely punctate. 



Head with interocular space more than half width of head, eyes a 

 little emarginate at antennal sockets; densely punctate, with lower 

 front more coarsely punctate, a median line down front usually 

 ending in a depression, covered with pale yellowish brown pubescence 

 that is less or not at all over lower front. Antennae reddish brown, 

 extending well below humeri, slender with the outer joints a bit 

 widened, seventh joint long. Prothorax nearly as long as wide with 

 slightly curved sides, moderately convex and depressed along base, 

 deeply but not very coarsely or densely punctate and covered with 

 long fine pale yellowish-brown hairs that are thicker in feathery 

 swirls on the sides than in the middle. Scutellum with fine short 

 hairs. Elytra slightly depressed below scutellum and with a short 

 intrahumeral sulcus and slight transverse depression below basal 

 callosity, punctation coarser near base and with horizontal ridging; 

 surface only partially concealed by long, pale yellowish-brown pubes- 



