1906.] Wheeler, The Ants of Japan. 307 



Resembling the worker, but the body is darker in color and the petiole is 

 proportionally shorter, with flatter anterior and posterior surfaces. The upper 

 surface of the thorax is almost as coarsely punctate as the head but more 

 sparsely. The basal surface of the epinotum is only about half as long as the 

 declivity. 



Described from two dealated females and several workers taken 

 by Mr. Hans Sauter at Yamanaka, Suruga, on the western slope of 

 the Hakone Mountains. 



This species is closely related to the palearctic and nearctic P. 

 coarctata Latr., but differs in its smaller size, thicker petiolar node, 

 and shorter antennae. The scapes do not reach so far back on the 

 head, and the funiculus has much shorter basal and more club-shaped 

 terminal joints. The sculpture and pilosity closely resemble those of 

 coarctata. 



Subfamily Myrmicin.'E. 

 6. Myrmecina graminicola nipponica subsp. nov. 



The worker of this subspecies, like that of the typical European 

 form, has well-developed median and lateral clypeal teeth, and the 

 two pairs of teeth on the epinotum are similar, except that the posterior 

 pair are somewhat broader and blunter in the Japanese specimens. 

 The sculpture of the head, thorax and pedicel is much more pro- 

 nounced than in the European and North American forms. It con- 

 sists of coarse longitudinal, more or less anastomosing rugae, especially 

 on the head and thorax. Pilosity and color as in the European type. 

 Length 3 mm. 



Two workers collected by Mr. Hans Sauter at Yamanaka, Suruga, 



7. Solenopsis fugax Latreille. 



This well-known European species is cited by Ernest Andre as 

 occurring in Japan. (Bull. Mus. d'Hist. Nat. Paris, 1903, p. 128, §) 



8. Pheidole nodus F. Smith. 



Pheidole nodus F. Smith, Trans. Ent. Soc. London, 1874, p. 407, 1| 

 Pheidole nodus Mayr, Verhandl. zool. bot. Ges. Wien, XXXVI, 1886, p. 363. 

 Pheidole nodus Forel, Bull. Soc. Ent. Suisse, X, 7, 1900, p. 268, % $ 



Soldier (Plate XLI, Fig. 8). Length 4-4.5 mm. 



Allied to Ph. siriaiiventris Mayr of India. Mandibles convex, flattened 

 on the outer surface towards the base, with two apical teeth and a small basal 

 tooth. Head, excluding the mandibles, but little longer than broad, some- 

 what narrower in front than behind; posterior angles rather acute, posterior border 

 broadly excised, median dorsal surface convex. Eyes one third the distance 



