NO. 1448. NEW JAPANESE HYMENOPTERA—ASHMEAD. 17 1 



which are black, a stripe on hind coxae beneath and a small spot at 

 sides near base, the second abdominal segment, except basal half, are 

 all yellow. Wings subhyaline, faintly tinged, the stigma and costal 

 vein yellow, the internal veins brown. The metathorax is areolated, 

 but the basal and lateral areas are confluent, the areola subquadrate, 

 the hind margin obtusely angulated. 



Type.— OAt. No. 7221, U.S.N. M. 



Locality. — Sapporo. One male, taken b}" Doctor Matsumura. 



Genus MELANICHNEUMON Thomson. 

 MELANICHNEUMON JAPONICUS, new species. 



Female. — Length, 11 mm. Black closely punctate, except the three 

 or four terminal segments of the abdomen, which are nearly smooth; 

 antennal joints 11 to 15, or at least beneath, a small line back of the 

 eyes, the scutellum, and a large, oblong spot on all tibiae behind snow- 

 white; there is also a small yellowish spot on the apical margin of the 

 last dorsal abdominal segment. Wings subf uliginous, the veins black, 

 the stigma being brownish within; tegulae shining black. The meta- 

 thorax is completely areolated, the areola large, hexagonal. The 

 gastrocoeli are not deep, situated at the basal lateral angles, and with 

 irregularly longitudinally raised lines, but the space between them is 

 broad and closely punctate, as is the rest of the abdomen. 



Type.~C?ii. No. 7222, U.S.N.M. 



Locality. — Sapporo (Doctor Matsumura). 



Genus RHEXIDERMUS Forster. 



RHEXIDERMUS JAPONICUS, new species. 



Plate XII, fig. 2. 



Female. — Length, 7.5 mm. Black, finel}^ punctate, subopaque; the 

 scutellum yellowish; flagellum reddish-brown, joints 10 to 14 ahove 

 white; mandibles conicall}" pointed, edentate, whitish, the tips blackish; 

 legs ferruginous, the anterior and middle pairs, especially basally 

 pale yellowish; abdomen much longer than the head and thorax united, 

 above black, the petiole and the apical segments smooth and shining, 

 or nearly, the segments 2, 3, and 1 distinctly closely punctate, ventral 

 segments 2, 3, and 1, and the extreme lateral margins of the dorsal 

 segments 2 to 1, testaceous; ovipositor subexserted, as long as the 

 second joint of hind tarsi. Wings hyaline, the costal margin brown, 

 the stigma and internal veins testaceous. 



Type.— Cat. No. 7223, U.S.N.M. 



Locality. — Japan (A. Koebele). 



