1916] Wheeler — Ants Carried in a Floating Log 181 



log had been floating in the water before it reached the island. 

 Please examine the ants," etc. 



The portion of the ant-colony received from Dr. von Ihering 

 consists of a single soldier, five workers and three young, winged 

 females, representing a new species of Pheidole of which I subjoin a 

 description. 



Pheidole peregrina sp. no v. 



Soldier: Length, 3.2 mm. Allied to Ph. pubiventris Mayr, 

 riifiyilis Forel, and angusta Forel, especially to the last. Head 

 small, subrectangular, a little longer than broad, as broad in front 

 as behind, with rather straight sides and feebly excised posterior 

 margin. Eyes moderately large and convex, in front of the middle 

 of the sides of the head. Mandibles rather large, indistinctly den- 

 ticulate in the middle, with two large apical and two small basal 

 teeth. Clypeus with a short carina behind, concave in front, with 

 rather deeply notched anterior border. Frontal area distinct, 

 triangular, not deeply impressed, with median carinula. Frontal 

 carinse short. Antennal scapes rather stout but not flattened, 

 curved at their bases, their tips reaching a little more than half the 

 distance between the eyes and the posterior corners of the head. 

 Joints 2-7 of the funiculus scarcely longer than broad, club a 

 little longer than the remainder of the funiculus, its two basal 

 joints subequal, together as long as the terminal joint. Thorax 

 shaped much as in puhiventris, but the pronotum without promi- 

 nent humeral tubercles and the epinotal spines reduced to small, 

 erect teeth which are not longer than broad at their bases. Petio- 

 lar node compressed anteroposteriorly, with indistinctly emargi- 

 nate, transverse superior border. Postpetiole less than twice as 

 broad as the petiole, with rounded sides and dorsal surface. Gaster 

 elongate elliptical, with distinctly truncated anterior border. 

 Legs moderately long. 



Smooth and shining: mandibles coarsely and sparsely punctate; 

 cheeks and front rather loosely longitudinally rugose; remainder 

 of head with sparse, fine, piligerous punctures. Mesonotum, 

 epinotum and sides of petiole opaque, very finely and obscurely 

 punctate-rugulose . 



Hairs short, abundant, pale yellow, reclinate, covering the whole 

 body and the appendages, longest on the gaster, which, however, 

 has no appressed hairs. Pubescence absent. 



