160 Journal New York Entomological Society. [VoLxii. 



Elasmus japonicus, new species. 



9. Length, 2.5 mm. Head and thorax yellowish, a spot on '"ertex, enclosing 

 the ocelli, a spot on pronotum medially, a median spot on jnesonotum posteriorly, a 

 spot on the axillee, a large spot on disk of scutellum and the metanotum black ; ab- 

 domen reddish-brown, the apex and three spots on basal segment black ; flagellum 

 brown ; legs yellowish- white, with a black hair-line on their superior edge, the hind 

 tibiffi with the hairs arranged on its outer face to form at least nine areas ; wings 

 hyaline, the veins brown. 



Type. — No. 7197, U. S. National Museum. 



Gifu. Described from four specimens received from Mr. Y. Nawa. 



Family LXXI, EULOPHID.-E. 



Subfamily I, Entedonin.^. 

 Tribe III. Entedonini. 

 Genus PLEUROTROPIS Forster. 

 Pleurotropis atamiensis, new species. 



9 . Length, i mm. ^^ineous, the head above, the disk of the metanotum, and 

 the metapleura, with a metallic greenish-tinge, vertex punctate, the mesonotum scaly- 

 punctate ; flagellum brown, pubescent, the funicle joints moniliform ; legs aeneous- 

 black, the tips of the tibize and the tarsi, whitish, the hind femora with a metallic 

 bluish tinge; wings hyaline, the very long marginal vein and the very short subses- 

 sile stigmal vein light brown ; abdomen conic-ovate, petiolated, with a bluish tinge, 

 the petiole about four times as long as thick, the first segment of the abdomen occu- 

 pies about half the whole surface. 



Type. — No. 7198, U. S. National Museum. 

 Atami (Mr. A. Koebele). Two specimens. 



Genus DEROSTENUS Westwood. 

 Derostenus bifoveolatus, new species. 



9 . Length, 1.2 mm. Metallic peacock blue on vertex of head and disk of the 

 thorax, otherwise dark bluish, except the pronotum which is brassy; tarsi, except 

 last joint, white ; mesonotum and the scutellum delicately reticulated with delicate 

 grooved lines, the mesonotum with two umbicate punctures posteriorly just in front of 

 the scutellum ; wings hyaline, the nervures brown, the marginal vein very long, the 

 stigmal vein very short. 



Type. — No. 7199, U. S. National Museum. 

 Atami (Mr. A. Koebele). One specimen. 



Derostenus nawai, new species. 



J" , 9 • Length, 1.3 mm. Dark blue, the disk of the thorax and the abdomen 

 seneous, tarsi, except last joint, white ; mesonotum normal, without the foveas at base, 

 wings hyaline, the veins brown ; abdomen in female conic-ovate, as long as the 



