53 
absence of native oak on the mainland of British Columbia it may prove 
to be confined, in that province, to Vancouver island. A. ostenta Csy. 
has the pronotum very densely punctured, but is probably not distinct. 
Forty-two specimens were examined from California, Oregon, and 
British Columbia. Other localities cited in literature are: Oregon, Wash- 
ington, and Nevada. 
Host plant: Oak (Downes). 
Type locality: Sacramento, California. 
(24) Anoplodera crassicornis Lee., 1875, S.M.C., vol. XI, No, 264, p. 227. 
corrusca Csy., 1913, Mem, on the Coleop., p. 261. 
Length 11 to 15 mm. This species is very evidently distinct from A. 
crassipes in punctation and in the rufous prothorax of the females. The 
male has two hind tibial spurs, that of A . crassipes only one. The elytral, 
basal, black marking is transverse in crassicornis and oblique in crassipes. 
The antennse are exceptionally stout in crassicornis and in the males 
strongly serrate. Both species may be found in the same meadow, but 
never associating and easily distinguished on sight in the field. 
Sixteen specimens are before us, two from Oregon and fourteen from 
California, and others have been seen in various collections. 
A specimen in the collection of Mr. J. N. Knull was compared with the 
type of crassicornis by Mr. Knull and found to be the same. This specimen 
agrees specifically with the type of corrusca in the Casey collection. 
Type locality: California (Mr. Ulke). 
Type locality of corrusca : Giant Forest, Tulare county, California 
(type collected by Ralph Hopping). 
(25) Anoplodera tibialis Lee., 1850, Jour. Acad. Nat. Sci. Phila., (2), I, 
p. 339. 
hirtella Lee., 1873, Smith. Misc. Coll., vol. XI, No. 264, 
p. 226. 
columbica Csy., 1913, Mem. on the Coleop,, vol. IV, p. 261. 
pictipennis Csy., 1924, Mem. on the Coleop., vol. XI, 
p. 285. 
miquelonensis Pic., 1921, l’Rchange, vol. 37, p. 11. 
Length 10 to 14 mm. Mr. C. A. Frost very kindly compared for us a 
male of tibialis with the type of hirtella Lee. and considered them the same 
species. Dr. E. C. Van Dyke 1 says, u Leptnra hirtella Lee. This is merely 
the male of L. tibialis Lee., the latter name having priority by many years.” 
A recent examination of the types by the writers confirms this view; 
although it should be noted that hirtella has the elytra more finely, densely 
punctured than usual in tibialis, the tips of the elytra hardly truncate, 
the pubescence on pronotum and elytra long and dense, with elytral spots 
only at and just before the tip. 
The colour pattern on the elytra in tibialis is typically yellow or red- 
dish, with four transverse black bands arranged as follows : first, postbasal, 
directed meso-caudad; second, median; third, postmedian, directed ineso- 
cephalad; fourth, apical. The anterior band is variably reduced to spots 
in some specimens and in the males is in many cases obsolete, with the 
1 Bull. Brook. Ent. Soc., vol, 15, 1920, p. 44. 
