558 , Bulletin American Museum of Natural History. [Vol. XXXIV, 
the most remarkable distribution shown by the list; Oodes amaroides, a 
species of similar habit found in Cuba, and the United States northward to 
New York; Plochionus pallens, a species of somewhat cosmopolitan dis- 
tribution; Lebia cyanea, a species found on plants in Cuba and Florida; 
and Leptotrachelus dorsalis, a species found on plants in Cuba, Florida, 
and northward to New York. 
The Cuban relation is also shown by the fact that of all the genera of 
Carabide known from Cuba, 90% are also Floridian genera, and while 
the species by which the genera are represented differ in the two regions, 
the difference is often not great, and further study may, in Selenophorus 
for instance, add to the twelve cases of specific identity already known. Dr. 
Leconte’s statement that “a remarkable feature in the geographical distri- 
bution... .is the comparatively small number of species common to Florida 
and the Antilles,” will require some modification, at least as far as Cuba and 
the family Carabide is concerned. 
As to the difference between north and south Florida, it may be said that 
the marked difference in the trees, as stated by John K. Small (‘Florida 
Trees,’ 1913, brought to my attention by Mr. Davis), is not clearly paral- 
leled in the Carabidee. The difference is exhibited by the increased failure 
in southern Florida of the species of boreal genera, rather than by any con- 
siderable number of species confined to that part of the state. The factors 
governing the distribution of the Carabide are apparently more compli- 
cated than those operative in the plant world, particularly in respect of a 
variable capacity for adaptation to changes in temperature and moisture. 
Dates of capture and environmental facts have been inserted as far as 
known. While some species may be found at all seasons, others are evi- 
dently more limited. Mr. Schwarz wrote long ago “ the dry season, which 
corresponds with the winter months, causes a disappearance of insects in 
Florida almost as complete as in the north,” and the experiences of Mr. 
Davis at Everglade, where Tetracha did not appear until after his departure 
in April, and of Mr. Brownell at Enterprise, where the Carabidee were sifted 
from the debris on the shores of Lake Monroe in October, November and 
December, amply justify the importance of dates even in Florida. As to 
environment, such extreme cases as Onota floridana being confined to Pal- 
metto are rare in Carabidee, but there are no species to which the local en- 
vironment is not a factor of prime importance. 
After this paper was set in type, I learned that the last collections 
made by H. K. Morrison in Florida, which passed into the Angell collec- 
tion labelled Key West, were in part made at Tampa. Some such specimens 
are also in my own collection. Key West records based thereon are there- 
fore questionable. 
