Sept., iL,o4.] ASHMEAD : HyMENOPTERA FROM JaPAN. 151 



each mesothoracic lobe, a central stripe on the scutellum and the apices of the dorsal 

 abdominal segments black ; wings hyaline, the veins yellowish, the marginal vein 

 very thick, not longer than the stigmal vein. The head anteriorly is deeply excavated 

 for the reception of the antennre, the flagellum is filiform, joints 2-6, a little longer 

 than thick, the first the longest joint ; the pronotum is a little more than twice wider 

 than long ; while the hind tibiss are armed behind with some stiff bristles as in the 

 Decatomini. 



Type. — No. 7i'64, U. S. National Museum. 



Atami. Described from a single specimen taken by Mr. A. 



Koebele. 



Tribe V, Decatomini. 



Genus DECATOMA Spinola. 

 Decatoma atamiensis, new species. 



Female. — Length, 1.5 mm. Head, except the vertex and the occiput, the 

 antennae, the tegulre, the mesopleura, and the legs, except a spot towards the apex 

 of the hind femora and most of the hind tibii^;, yellow ; the vertex, occiput, rest of 

 the thorax, a spot on hind femora towards apex, and the hind tibise, except the apical 

 fourth and a narrow annulus at base, black. Wings hyaline, the veins, except the 

 semicircular stigma, which is brown-black, pale yellowish ; there is' a subfuscous 

 fascia extending from the stigma to beyond the middle of the wing. 



Type. — No. 7165, U. S. National Museum. 



Atami. Described from one specimen collected by Mr. A. 

 Koebele. 



Family LXIV, PERILAMPID.'E. 



Genus PERILAMPUS Latrielle. 

 Perilampus japonicus, new species. 



Female. — Length, 4 mm. Head, legs, except the tarsi, and the abdomen blue- 

 black, smooth and shining ; tarsi honey-yellow ; thorax aeneous-black, the dorsum 

 with a greenish tinge, coarsely, closely punctate, except the lateral mesothoracic 

 lobes which are smooth and shining, scape and pedicel aeneous ; flagellum brown- 

 black, a little paler or brown at apex ; wings hyaline, the veins brown. 



Male. — Length, 2.5 mm. Agrees with female, except in size, and in having 

 the head and scutellum metallic greenish, the legs aeneous-black, the tarsi longer and 

 slenderer, light brownish. 



Type. — No. 7166, U. S. National Museum. 



Sapporo. Described from a 9 and <? , labelled No. 15, received 

 from Dr. Matsumura. 



Family LXV, EUCHARID.F:. 

 Genus SCHIZASPIDIA Westwood. 

 Schizaspidia tenuicornis, new species. 



Female. — Length 4 mm. Head and thorax metallic-green, the abdomen black, 

 the petiole yellow at apex ; mandibles, antennae and legs, except the hind coxse, 



