57 
Sixty-four specimens have been examined from New Mexico, Colorado, 
Alberta, and British Columbia. Other localities given in literature are 
Idaho and Michigan. The Michigan record may refer to Anoplodera 
mutabilis Newm. 
Habitat: Rocky Mountain region and west to the Pacific coast. 
Host plant: Betula (Craighead). 
Type locality: Vancouver island, B.C. 
(34) Anoplodera mutabilis Newm., 1841, The Ent., vol. 1, p. 71. 
luridipennis Hald., 1847, Trans. Am. Phil. Soc., vol. X, 
p, 63. 
quadricollis Lee., 1850, Jour. Acad. Phil., ser. 2, vol. 1, 
p. 339. 
Length 8 to 13 mm. In both males and females the elytra may be 
either testaceous or black. Testaceous specimens in many cases have a 
dusky black area near the apices of the elytra and were called luridipennis 
by Haldeman. The elytra present considerable variation in width, and in 
the density of the punctation. A. quadricollis Lee, is a male of mutabilis 
Newm., but with the pronotum almost exactly square, and with denser 
and longer golden pubescence. 
The two species, aspera Lee. and mutabilis Newm., are distinguished 
from the rest of the genus Anoplodera Muls. by the following combination 
of characters; the quadrate pronotum, open forecoxal cavities, and the 
pubescent sole on the first segment of the hind tarsi. These characters 
indicate relationships with Pidonia Muls. and Acmaeops Lee. The convex 
prosternum, on the other hand, and other characters, require that the group 
be retained near the genus Anoplodera. It is more convenient now to in- 
clude it in Anoplodera; but it may eventually be removed as a separate 
genus. 
One hundred and twenty-three specimens have been examined from 
New York, Minnesota, Michigan, Massachusetts, Ontario, and Quebec. 
Other localities mentioned in literature: Newfoundland, New Mexico, 
New Jersey, and Pennsylvania. 
Host plants: Quercus , Betula , Acer , Castanea (Craighead). 
Type locality: Trenton Falls, N.Y. 
(35) Anoplodera sanguinea Lee., Proc. Acad. Nat. Sci. Phila., p. 89. 
boulderensis Csy., 1913, Mem. on the Coleop., vol. IV, 
p. 252. 
apicata Csy., 1924, Mem. on the Coleop., vol. XI, p. 280. 
Length 8 to 11 mm. The elytra are generally testaceous in the males 
and reddish in the females; the latter are usually slightly larger. This 
species seems to be more commonly found in the west than in the east. 
Strangalia apicata Csy. is a male, evidently of sanguinea Lee. The type 
of boulderensis Csy. is a typical female of sanguinea. 
One hundred and forty specimens were examined from Colorado, New 
Mexico, California, Oregon, British Columbia, Manitoba, Ontario, and 
Quebec. Other localities cited: Washington, Nevada, New Hampshire, 
Pennsylvania, and Michigan. 
Host plant: Pinus ponderosa (Hopping). 
Type locality: “Wash. Ter.” 
