1939] 
Notes on Strumigenys 
97 
Color ferruginous; mandibles, antennae and legs slightly 
lighter; gaster darker. 
This very distinctive species is readily recognized by 
(1) the doubly margined character of the clypeal border; 
(2) the smooth and shining surface of the clypeus, and the 
more extensive shining areas on the thorax; (3) the shape 
of the head (4) the pilosity of the head. 
Type locality: Cedar Mills, Adams County, Ohio. 
Described from a single worker found under a piece of 
bark lying on the ground in a somewhat open, grassy spot 
in rather brushy cut-over woods. A dealated female be- 
longing to this species was found about 15 cm. distant in 
some thin, vegetable debris. Further search failed to 
reveal any more specimens. 
Strumigenys (Cephaloxys) manni, sp. n. 4 
Worker: (PI. 3, fig. 3) : Length, 1.8-2. 0 mm. 
Head 2.5 times as long as the greatest width of the cly- 
peus, 1.3 times the greatest width across the occipital lobes; 
viewed anteriorly, the sides of the head anterior to the 
antennal insertions are gently convergent, slightly convex, 
in outline merging without definite change of slope with the 
exterior borders of the mandibles ; clypeus with lateral bor- 
ders gently convergent, nearly straight, the anterior border 
truncate at, dr a little anterior to, the point of intersection 
of the lateral and external mandibular borders; in some 
specimens, the anterior border is slightly emarginate, in 
others it is somewhat angularly convex in the middle, but 
the truncate appearance is not lost. Occipital lobes expand- 
ing suddenly but not strongly from the anterior portion of 
the head, at first broadly convex, then more strongly convex 
as the posterior border is approached; posterior border 
rather broadly and moderately excised. Mandibles % the 
length of the rest of the head, rather robust, the external 
border broadly and evenly convex; basal teeth very broad 
and short, partially concealed by the clypeus when the man- 
dibles are closed, followed without an intervening toothless 
space by 5 pairs of moderately long acute teeth, the third 
4 It gives us pleasure to name this distinctive species after Dr. W. M. 
Mann, from whom we have received many kind favors. 
