204 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



this band is irregularly concaved and consequently it is narrower 

 near the middle than at either end; the marginal cilia of the fore wing 

 somewhat shorter than in nigra; caudal wings broad; submarginal 

 vein with three bristles; stigmal vein intermediate between 7iigra 

 and australensis; otherwise like the latter. Cephalic tibial spur 

 2-tined at apex. Male like the female. Mandibles bidentate, the 

 teeth subequal, small, acute and black at their tips. 



These notes from the following specimens: The types, 1 male, 3 

 females, formerly on tags, now remounted in xylol-balsam (1 slide). 

 They are labeled " SignipJiora dactylopii Ashm., females. Type No. 

 4772. 4713°.^ Par: on Pseudococcus ephedrse Coq." Also in the 

 United States National Museum collection, three females in xylol- 

 balsam (1 slide) remounted from tags and labeled " SignipJiora 

 dactylopii Ashm.., female. Roswell, N. Mex. Cockerell," determined 

 by Ashmead; and one female similarly remounted and bearing the 

 label'' 382 P»/' 



Habitat. — United States — -District of Columbia; New Mexico 

 (Roswell) . 



Host. — Pseudococcus epTiedrse, Coquillett. 



Types. — The one male, tliree females as indicated above. 



Homotypes. — Accession No. 45086, Illinois State Laboratory of 

 Natural History, Urbana, one female on a slide labeled "3821^*" as 

 mentioned above. 



5. SIGNIPHORA NOACKI Ashmead. 

 Signiphora noachi Ashmead, 1900, pp. 409, 410; 1904, p. 497. 



The original description is : 



Female. — Length, 0.50 mm. Coal-black, except 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, U.S.N.M. 



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



Host. — Rhynch.: Psylla sp. on a wild shrub. Bred October, 1897, by F. Noack. 



The species is based upon male specimens and is quite as described 

 but the fore wings are not wholly hyaline, the proximal fourth smoky 

 or fuscous, or from the base out as far as a point somewhat beyond 

 the apex of the submarginal vein; the body is finely, polygonally 

 sculptured, finely transversely lined at the mesoscutum. From 

 nigra, australensis, and dactylopii, to which group of species it belongs, 

 this species may be distinguished at once by reason of the fact that 

 the marginal fringes of both wings are long and subequal, those of 

 the fore wing nearly as long as that wing's greatest width (about 

 two-tliirds of the greatest width), those of the caudal wing slightly 

 longer than the greatest width of that wing. Again, the venation 



1 The original note says the material came from Los Angeles, Cal., and this instead of the District of 

 Columbia is the correct type locality.— J. C. Crawford. 



