412 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxil 



II. SIGNIPHORA ALEYRODIS Ashmead, new species. 



Female. — Length, about 0.50 mm. Body mostly golden-yellow ; ver- 

 tex of head faintly dusky; thorax anteriorly and very narrowly, and a 

 band across base of abdomen including hardly one-third its length, 

 dark brown; wings hyaline, with a dusky band across the middle just 

 beneath the marginal vein, which is a little narrower at the hind mar- 

 gin than at its origin; antenn?e and legs entirely pale yellowish white. 



Tijpe.— Cat. No. 4855, U.S.N.M. 



Habitat. — West Indies : Trinidad. 



Host. — Ehynch.: Aleyrodes sp. on orange. Two specimens, Ace. No. 

 6162, Department of Agriculture. 



12. SIGNIPHORA COQUILLETTI Ashmead, new species. 



Female. — Length, hardly 0.50 mm. Bright golden yellow ; vertex of 

 head fuscous; thorax entirely, and abdomen, except a dark brown 

 band at base which occupies fully one-third or more of its length, 

 yellow; otherwise as in Aleyrodis. 



Type.— Cat. No. 4857, U.S.N.M. 



Habitat. — Ehynch.: Aleyrodes sp. on Quercus agrifolia. 



Easily distinguished from 8. aleyrodis by the fuscous vertex and the 

 absence of the brown blotch on the anterior part of the thorax. 



13. SIGNIPHORA ASPIDIOTI Ashmead, new species. 



Female. — Length, about 0.50 mm. Lemon or golden -yellow; head 

 faintly dusky above; apical half of antennal club, anterior half of the 

 mesonotum, and a broad transverse band at base of abdomen, includ- 

 ing nearly half its length, dark brown; wings with a broad fuscous 

 band, as in previous species. 



Type.— Cat. No. 4859, U.S.N.M. 



Habitat. — Mexico : San Louis. 



Host. — Ehynch. : Aspidiotus nerii Bouche. Bred November, 1894, by 

 Tyler Townsend. 



14. SIGNIPHORA TOWNSENDI Ashmead, new species. 



Female, — Length, about 0.45 mm. Mostly dark-brown; a broad 

 band between the wings including the hind margin of the mesonotum, 

 scutellums, and metathorax, and the apical third of abdomen, or less, 

 lemon-yellow. Wings hyaline, as in previous species, but the fuscous 

 band has a deep median hyaline emargination on its basal margin. 

 Antennse and legs pale yellowish, the club rather short, about one-third 

 shorter than in the other species. 



Type.— Cat. No. 4856, TJ.S.N.M. 



Habitat. — Mexico: Tabasco. 



Host. — Ehynch.: J-Ze?/ro^fssp. on a coarse grass. Bred by Tyler Town- 

 send, June 19, 1897. Four specimens. 



