410 PROCEEDINGS OF THE NA TIONAL MUSE UM. vol. xxii. 



Club of antennae with its apical half brown. 



(13) S. aspidioti Ashmead, new species. 

 Band at base of abdomen including more than one-half of the abdomen, some- 

 times with only the tip yellow ; club of antennse shorter and wholly yellow. 



(14) S. townsendi Aslimead, new species. 



I. SIGNIPHORA NIGRA Asbmead, new species. 



Female. — Length, about 0.55 mm. Polished black impuuctate, but 

 with a decided aeueous tinge in certain lights. Flagellum brown-black. 

 Legs black, the anterior and middle tibite brownish, their tips and all 

 tarsi white. Wings with the basal half or more fuliginous, the apical 

 half or less hyaline. 



Type.— Cat. No. 4767, U.S.N.M. (Ashmead collection.) 



Habitat. — District of Columbia: Washington. 



2. SIGNIPHORA AUSTRALIENSIS Ashmead, new species. 



Female. — Length, 0.60 mm. Aeneous black, the mesonotum with a 

 bronzy tinge, the scutellum with a slight bluish tinge; legs black, a spot 

 on knees and tarsi white or yellowish- white, the anterior tibiae yellow- 

 ish beneath ; wings fuscous with a hyaline band across the disk from 

 apex of the marginal vein. 



Type.— Gat. l^o. 4771, U.S.I^T.M. 



Hahitat. — Australia. (Albert Koebele, collector.) 



Host. — Rhynch. : Sp. not identified. 



3. SIGNIPHORA DACTYLOPII Ashmead, new species. 



Female. — Length, 0.58 mm. Blue-black, the mesonotum with an aene- 

 ous tinge anteriorly; legs concolorous with the body, except the tarsi, 

 which are white ; wings hyaline, with a fuscous band across the middle 

 from beneath marginal vein to the hind margin. 



Type.— Cat. No. 4772, U.S.N.M. 



Habitat. — District of Columbia. 



Host. — Ehynch. : Dactylopiiis ephedrce Coquillett. Bred at Depart- 

 ment of Agriculture. 



4. SIGNIPHORA NOACKI Ashmead, new species. 



Female. — Length, 0.50 mm. Coal-black, excej)t a whitish line on the 

 hind margin of the mesopleura, along the suture separating it from the 

 metapleura and the tarsi, which are white ; wings wholly hyaline. 



Type.— Cat. No. 4773, TJ.S.N.M. 



Habitat. — Brazil: San Paulo. (F. Noack.) 



Host. — Ehynch. : Psylla sp. on a wild shrub. Bred October, 1897, by 

 F. Noack. 



5. SIGNIPHORA UNIFASCIATA Ashmead, new species. 



Female. — Length, about 0.70 mm. Black, with a narrow yellowish- 

 white band across base of scutellum and continued ^below on the hind 

 margin of the mesopleura and along the mesosternal suture; tarsi white; 

 wings hyaline. 



Type.— Cat. No. 4774, U.S.N.M. 



