Sept., 1904.] ASHMEAD : HyMENOPTERA FROM JaPAN. 149 



Strongly clavate, black, except basally, the scape and the two or three basal joints of 

 the flagellum being pale or yellowish ; tegulie, middle coxk, base and tips of front 

 and middle femora, tibiae and tarsi and hind tarsi, honey-yellow or testaceous, the 

 rest of the front and middle femora and the hind legs brownish or brown-black the 

 hind legs darkest, sometimes black. Wings hyaline, the veins brown. The abdo- 

 men is oval, shining, the third segment, and those beyond, faintly, microscopically 

 punctate. 



Type. — No. 7158, U. S. National Museum. 

 Hakone (Mr. A. Koebele). 



Family LXIII, EURYTOMID.^. 

 Subfamily I, Aximin.^. 

 Representatives of this group should be found in Japan. 



Subfamily II, Eurytomin^. 



Tribe I, Isosomini. 



Genus ISOSOMA Walker. 



To this genus belongs Euryfoma antica Walk., described from 



Hiogo. 



Tribe II, Eurytoma lUiger. 



Eurytoma appendigaster Swederus. 



I have received specimens of this species from Yokohama and 

 Gifu. 

 Eurytoma nikkoensis, new species. 



Female. — Length, 2.4 mm. Black, shallowly umbilicately punctate, the middle 

 mesothoracic lobe anteriorly almost smooth, shining ; front legs from base of femora, 

 the middle legs from apical half of femora, and the hind knees, tips of their tibiae 

 and the tarsi, honey-yellow ; wings hyaline, the veins light brown, the marginal vein 

 about one half longer than the stigmal vein, the postmarginal vein delicate, hardly 

 longer than the stigmal. The head is considerably wider than the thorax ; antennae, 

 except a yellow annulus at apex of the pedicel, wholly black, the flagellar joints 

 oblong oval, the first the longest, the others gradually shortening ; abdomen ovate, 

 pointed at apex, not longer than the thorax, smooth and shining, subcompressed, the 

 petiole short transverse ; the body of the abdomen seen from the side is only a little 

 more than twice as long as wide. The pronotum is only a little wider than long. 



Type. — No. 7159, U. S. National Museum. 



Nikko. Described from a single specimen collected by Mr. A. 

 Koebele. 

 Eurytoma atamiensis, new species. 



Female. — Length, 1.8 mm. Black, the head and thorax umbilicately punc- 

 tate ; scape of antenna; and the legs, except the hind coxae and the hind femora, 



