1949] 
Brown — Notes on F ormicidce 
47 
Wheeler’s two Oriental forms, graminicola snbsp. 
nipponica and graminicola snbsp. sinensis, are also 
doubtful. The former has the anterior clypeal tubercles 
developed much as in graminicola, and seems hardly 
separable from that form. The latter has the clypeal 
tubercles reduced and seems scarcely distinguishable 
from americana. I should not be surprised if sinensis 
were to prove to be the same as sicula, from the southern 
Palearctic region; or if both of these ( sicula and sinen- 
sis) were identical to americana. In fact, the entire 
Holarctic Myrmecina fauna may end by being considered 
as one huge species cline in which the geographical races 
have not yet become sufficiently isolated to form distinct 
subspecies exclusively inhabiting a given area. 
Tetramorium ccespitum (Linnaeus) 
Linnaeus, 1785, Syst. Nat. (Ed. 10), 1: 581 ( Formica ) 
Myrmica ( Myrmica ) brevinodis var. transversinodis 
J. Enzmann, 1946, Journ. N. Y. Ent. Soc., 54: 47-49, figs. 
1, 2, worker. 
Dr. Creighton and I are in complete agreement that 
this form ( transversinodis ) must be added to the long 
list of synonyms of the common pavement ant. Al- 
though I have not seen the type, the description, figures 
and notes on the habits leave little doubt of the correct 
placement. This ant should not be mistaken for Myr- 
mica Icevinodis, listed under various names and possibly 
a subspecies of M. rubra, which is an introduced form 
quite common in the Boston area. M. Icevinodis some- 
times enters bouses, but then as solitary individuals 
probably brought in on clothing, as has been my frequent 
observation in Cambridge. This Myrmica possesses a 
very potent sting, the effects of which may last for sev- 
eral hours. 
Crematogaster lineolata (Say) 
Say, 1836, Boston Jour. Nat. Hist., 1: 290, 
all castes (Myrmica). 
C. lineolata cerasi var. punctinodis J. Enzmann, 1946, 
Jour. N. Y. Ent. Soc., 54 : 91-92, pi. 2, fig. 7, all 
castes. 
