306 Bulletin American Museum of Natural History. [Vol. XXII^ 



4. Euponera (Brachyponera) solitaria F. Smith. 

 Plate XLI, Fig. 13. 



Ponera solitaria F. Smith, Trans. Ent. Soc. London, 1874, p. 404, ^ 

 Ponera solitaria Mayr, Verb. zool. bot. Ges. Wien. XXXVI, 1886, p. 363. 

 Ponera solitaria Forel, Bull. Soc. Ent. Suisse, X. 7, 1900, p. 267 and 284, 



Euponera {Brachyponera) solitaria Emery, Ann. Soc. Ent. Belg., XLV, 

 1901, p. 47. 



Several workers and dealated females collected by Mr. Hans 

 Sauter during March and April 1905, at Kanagawa near Yokohama. 

 Forel's specimens of the workers and females arrived in Hamburg in 

 a living condition with plants (Prunus) imported from Japan. As 

 Forel has shown, this species is allied to the two Indian species, 

 luteipes Mayr and jerdoni Forel. It differs from both of these in 

 having the posterior border of the head less deeply excised. 



5. Ponera japonica sp. nov. 



Worker. Length 2-2.25 mm. 



Mandibles with three larger apical, and numerous minute basal teeth. Head 

 excluding the mandibles, fully 1^ times as long as broad, nearly as broad in 

 front as behind, with subparallel sides; occipital border slightly concave. 

 Antennal scapes not reaching the posterior corners of the head by a distance 

 equal to their greatest transverse diameter. All the funicular joints, except 

 the first and last, distinctly broader than long; basal joints very short and 

 narrow, fotir terminal joints forming a thickened club, which is distinctly 

 longer than the remainder of the funiculus. Last joint about as long as the 

 three preceding subequal joints. Eyes minute, consisting of only a few omma- 

 tidia and situated about \ the distance from the anterior to the posterior 

 border of the head. Thorax from above much broader in front than behind, in 

 profile with straight dorsal surface and distinct promesonotal and meso- 

 epinotal sutures. There is also a distinct suture between the mesonotum and 

 mesopleurse. Mesonotum about \ as long as the pronotum; basal surface 

 of epinotum abovit as long as the declivity, which is distinctly flattened but 

 hardly marginate on its sides. Petiole thick, nearly as long as broad, from above 

 broader behind than the epinotum; in profile as high as the epinotum and 

 gaster, flattened in front and behind and above, laterally compressed below 

 and armed with a small median ventral tooth. Gaster and legs of the usual 

 shape. 



Head subopaque, very finely and densely punctate, thorax and abdomen 

 more shining, more sparsely and more finely punctate. 



Pubescence and hairs grayish yellow, longest and most conspicuous on the 

 upper surfaces of the head, thorax, and gaster. 



Reddish brown; upper surface of body dark brown; mandibles, clypeus, 

 frontal carinae, antenna, and legs yellow. 



Female. Length 2.7 mm. 



