20 
Key to the Species 
A Cheeks moderate; intercoxal piece of prostemum feebly widened behind; pronotnm 
with sides strongly narrowed on apical half, usually wider than long, pronotum 
and elytra black. (1) campanifera Csy. 
AA Cheeks very short, linear; intercoxal piece of prostemum not widened behind. 
B Tempora hardly at all inflated, abruptly, obliquely narrowed backward from the 
eyes as viewed from above; pronotum and elytra bright blue, in some cases 
with red elytral humeri; pronotum usually longer than wide. 
(2) molybdica Lee. 
BB Tempora distinctly inflated, strongly arcuate, or angulate as viewed from above. 
C Pronotal disk with median line broadly feebly impressed; vestiture on head 
and pronotum reddish golden. 
D Last ventral of female stout, subopaque, with a median apical spine; last 
ventral of male subtruncate, broadly rounded at apex; pronotum black, 
with or without reddish margins. (3) exigua Newm. 
DD Last ventral of female without apical spine; last ventral of male narrowly 
rounded at apex; pronotum red. (4) haematites Newm. 
CC Pronotal disk strongly convex, hardly at all impressed along median line; 
vestiture of entire body yellowish grey. 
D Pubescence of elytra very short and inconspicuous. 
E Pronotum with punctures densely placed. (5) subargentata Kirby. 
EE Pronotum with punctures coarse and sparse. (6) rkodopus Lee. 
DD Pubescence of elytra rather long, cinereous, and conspicuous. 
E Punctures of pronotum coarse and sparse; hind tibial spurs short and 
slender, about one-fourth the length of the 1st tarsal segment. 
(7) ruficeps Lee. 
EE Punctures of pronotum densely placed; hind tibial spurs elongate, 
about one-third the length of the 1st tarsal segment. (8) filicomis Csy. 
(1) Grammoptera campanifera Csy., 1913, Mem. on the Coleop., p. 256. 
Length 8 mm. Doctor F. E. Blaisdell very kindly loaned us a specimen 
from the type series, taken at the same time as Col. Casey's type. 
The only male we have seen is narrower than the females, not so 
convex, with parallel elytra and red or bicoloured legs, as have three of the 
females; in the other females the legs are black. 
In all, seven specimens have been studied, in addition to the type, 
five from Fresno and Tulare counties, California, one from Cayton, Shasta 
county, California, and one from the type locality. The female will prob- 
ably be found in some collections under the name Acmaeops cubitalis; 
but the shape of the prothorax, with the basal angles moderately produced 
and acute, and elytra with rounded apices, require its inclusion in this 
genus. It is closely related to the European Grammoptera variegata Germ. 
Habitat; Sierra Nevada mountains, California. 
Type locality: Mokelumne hill, Calaveras county, California. 
(2) Grammoptera molybdica Lee., 1850, Jour. Acad, Phila., (2), vol. 2, p. 101. 
militaris Chev., 1855, Rev. Zook, p. 187. 
Length 5 to 6 mm. This is a slender, blue species, common in Cali- 
fornia on Ceanothus blossoms, especially on Ceanothus divaricatus ; it is 
taken occasionally in British Columbia, and is probably found in Washing- 
ton and Oregon. The form militaris can be distinguished only by the red 
humeri of the elytra and seems to be confined to central and southern 
California. In southern California the blue form is found commonly at 
very high elevations, and the form militaris at very low elevations; between 
these extremes is a transition belt, at from 3,000 to 6,000 feet, where both 
forms are common. Mr. Hopping has frequently taken numerous pairs 
of both forms from the same bush; but has never seen the militaris form 
mating with typical molybdica , 
