1933] Sphxroderus canadensis 63 
Sphaeroderus canadensis lengi, subsp. nov. 
Closely similar to typical canadensis in size, form, and 
color. Differs chiefly in having the elytral striae more 
heavily punctate, the intervals more interrupted poste- 
riorly, and the sculpture heavier and more irregular 
throughout; in having the 11th interval more elevated 
apically, forming a distinct cariniform tubercle at the de- 
clivity, especially in the $ ; and in having the 4th and 
8th elytral intervals each with several (usually 5 or 6 or 
more) setigerous punctures. In the last character it differs 
from northern specimens of true canadensis but not from 
some specimens I have seen from the Black Mts., especially 
Mt. Mitchell, N. C. Length 10-11.5 mm. 
Holotype 6 , allotype $ , and 4 ( 6‘ $ ) paratypes from 
between Newfound Gap and Clingman’s Dome, 5,000-6,600 
ft., on the North Carolina-Tennessee state line. One $ 
paratype from Newfound Gap itself. One $ paratype 
from State Road to Newfound Gap, Tennessee side, 3,500 
ft. All the preceding localities are in the Smoky Mts.; 
the specimens were collected by the writer August 31- 
Sept. 3, 1930. Also 6 paratypes (5 6 6,9) from High- 
lands, North Carolina, Blanchard Collection. All of the 
type series, except 3 paratypes in the writer’s collection, 
are in the Museum of Comparative Zoology, type number 
17,238. 
S. canadensis differs from all other Sphaeroderus in hav- 
ing the elytra only 12-striate. Of the characters given 
above to separate the two subspecies only the setigerous 
punctuation of the 4th and 8th elytral striae needs special 
discussion. In typical canadensis from the North these 
intervals are usually impunctate, but there is one seti- 
gerous puncture on the 4th interval of the left elytron of 
each of two 6 6 from Mt. Madison, N. H. There is one 
on the 4th interval of a $ from Isle-au-Haut, Me. A 6 
from St. Vincent, Penn., has 4 on the left, 3 on the right 
4th interval, none on the 8th interval. A 9 from Virginia 
has two on each 4th interval. A 6 and $ from Boone, 
northern North Carolina, have the 4th and 8th intervals 
impunctate, as has a $ from near Linville, northern 
