Oct.,1918 Bulletin of the Brooklyn Entomological Society 89 
NOTES ON THE CYCHRUS FOUND IN THE BLACK 
MOUNTAINS, NORTH CAROLINA. 
By Witit1am BEUTENMULLER, New York. 
On my expedition to the Black Mountains in western North 
Carolina from May to the latter part of October, 1912, I was for- 
tunate enough to secure a large number of specimens of the dif- 
ferent species of Cychrus found in this interesting region. I ob- 
tained Cychrus guyoti, eneicollis, andrewsi, irregularis, bicari- 
natus, canadensis, elevatus and form tenebrosus. By good luck I 
located several places inhabited by the rare C. guyoti and collected 
a fine series. It is very local and is found on the extreme summit 
in the dense, dark, balsam forests, as well as on the slopes and 
base of the mountains. On the slopes it is only found in the 
deep ravines and at the base in coves and places where the sun 
never or rarely penetrates through the dense growth of vegeta- 
tion. I have never found any Cychrus on the slopes where the 
same becomes parched and dry during the summer, or in sunny 
places. There are two forms of guwyoti, a purplish bronze form 
(the type) and a black form wanting the purplish metallic luster. 
For this dark form I would propose the name angelli, after Mr. 
G. W. J. Angell, who is specializing in the Cychrinu. Guyot is 
found from the latter part of May until late in August, but is 
most abundant in June and July. It evidently does not hibernate, 
as I have not been able to take it after August 20. Cychrus 
eneicollis is found in the same situations as guyoti, but is more 
abundant and social in habit and is most numerous on the extreme 
summit in the balsams (Abies frazeri). It is a valid species and 
not a form of andrewsi as placed by Roeschke in his monograph. 
There are also two forms of @neicollis, a metallic greenish and a 
purple form. I herewith propose to call the green form @ner- 
collis (type form) and the purple form purpuratus. Cychrus 
andrewsi is the most common species and is found in mostly all 
the coves at the base of the mountains near streams. I have 
never taken it on all my trips on the extreme summit or 
higher parts of the slopes. It is found throughout the year and 
