PSVC'IIK 
ANTS FROM THE SUMMIT OF MOUNT WASHINGTON. 
I'.Y Wir.LI.VM MORTON WHEEI.ER, NEW YORK, N. Y. 
During the pa.st year Mrs. .Vnnie Trumitull Slosson spent several months on 
the summit of Mount Washington, N. IF, collecting and studying the insects. 
She has kindly sent me all the species of ants she succeeded in taking. Though 
the collection is a small one, as this group of insects was very poorly represented 
on the summit, it is nevertheless of more than usual interest. It comprises the 
follofving forms: 
v' 
I. Camf^onotus herculeanus ligniperdus Latreille \a.r. pic/us F’orel. single 
deiilated female. My collection contains two very similar specimens taken dur- 
ing August 1901 in the same locality by Dr. C. S. Ilacon. 
' 2. Formica saitgiiiiiea asen’a Voxe\. Two deiilated females. 1 have recently 
found two colonies of this form in the Litchfield Hills, Conn., at an altitude of 
about 1000 ft. The females are rather small (7-8 mm.) compared with those of 
our more abundant F. sanguinea rubicunda. The gaster and head are black, the 
thorax and petiole dull yellowish brown, the former mottled with black, the legs 
and antennae dark brown. The rich red color of our common forms of sanguinea 
is completely lacking. The clypeal notch is broad and deep. 
3 Lasius uiger L. \'ar. ameriamus Emery. single winged female of very 
small ^ze (5.3 mm. ) but in other respects like the common form. 
4. Liiiius umbrcttus mixtus Nylander var. Three males and two winged 
females resembling the corresponding sexes of var. aphidicola Walsh, except that 
the females collected by Mrs. Slosson are decidedly darker. 
5. '^ Dolichoderus taschenbergi Mayr var. gagafes Wheeler. single deiilated 
specimen of the hitherto unknown female of this species and variety. It measures 
4 mm. and resembles the worker in the structure of theepinotum. The head and 
thorax are very smooth and shining, the epinotum somewhat more opaque, with 
scattered shallow foveolte. The body and appendages are deep black, the tips 
of the mandibles and articulations of the legs slightly brownish. 
,6. Leptothorax acen orum canadensis I’rovancher. Three deiilated females 
all barker than the females of the typical form in my collection. 
• 7. Myrtnica rubra brevinodis F'.mery var. .\ single winged female dilTering 
